The unmissable sustainability events of 2025

👉 See illuminem guide to the sustainability events you cannot miss in 2026 or continue below to navigate the events of 2025.

As the leading platform for sustainability information and data, illuminem is delighted to present a comprehensive list of the "must-attend" sustainability events of 2025 – a year set to reshape global efforts toward a greener future.

Events recommended by illuminem are marked with a ⭐, while those offering our readers an exclusive (typically 30%) discount carry the 🎟️ badge!

November

10-13 November | WebSummit | Lisbon, Portugal 🇵🇹
Main focus: Green Tech 🚀, Net Zero 🌿
Description: A powerhouse event for innovators and leaders, uniting CEOs, founders, and investors to shape the future of technology. Expect transformative conversations on how tech can drive sustainability, with a dynamic mix of talks, networking, and groundbreaking showcases

⭐ 10-21 November | COP30: UN Climate Change Conference | Belém, Brazil 🇧🇷 
Main focus: Climate Change 🌳, Environmental Sustainability 🌍
Description: This landmark event gathers nations, NGOs, and stakeholders to tackle the climate crisis. It’s a unique platform to negotiate solutions and assess progress on climate goals while highlighting the region’s ecological significance

18-25 November | Sustainable Innovation Forum 2025 | Belém, Brazil 🇧🇷 
Main focus: Sustainable Finance 💰
Description: As part of the Climate Action Innovation Zone COP30 programme, the Sustainable Innovation Forum 2025 will bring together 1,000 senior global climate leaders from business, finance, governments, cities and regions and NGOs to share challenges and opportunities and forge vital collaborations and partnerships

19-20 November | Slush | Helsinki, Finland 🇫🇮
Main Focus: Green Tech 🚀
Description: A high-energy founder-focused event where startups meet investors, showcasing breakthrough technologies in sustainability, with unparalleled networking and knowledge-sharing opportunities

26-27 November | Impact Festival | Frankfurt, Germany 🇩🇪
Main Focus: Green Tech 🚀, Sustainable Finance 💰, ESG 🏢
Description: Europe's largest B2B event for sustainable innovation , connecting sustainability solutions with companies and investors to accelerate economic transformation

December

🎟️⭐ 7-9 December | The Resilient Cities Forum | London, UK 🇬🇧
Main focus: Sustainable Living 🏡
Description: This significant gathering will convene over 100 Chief Resilience Officers (CROs) from around the world — their first collective meeting in more than five years to define a shared vision for urban resilience over the next decade

Keep an eye on this page, as we continue to update the calendar with new unmissable events. Also, don’t forget to subscribe to our acclaimed free newsletters to never miss a beat in sustainability. Contact us to promote your event and connect with our community of 500,000+ sustainability professionals. 

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Past events

January

14-16 January | World Future Energy Summit | Abu Dhabi, UAE 🇦🇪
Main focus: Green Tech 🌍, Renewables ⚡
Speakers: Manali Desai, Chief Sustainability Officer AMESA, PepsiCo | Ghiwa Nakat, Executive Director, Green Peace | Dina Epifanova, Global Head of Sustainability, IFFCO Group
Description: The premier international event accelerating sustainability and the global transition to clean energy. Explore groundbreaking solutions in solar, wind, hydrogen, and energy storage, with opportunities to engage with thought leaders and disruptors

🎟️⭐ 20 January | CSO Awards Europe 2025 | Davos, Switzerland 🇨🇭
Main Focus: Sustainable Business 💼, Leadership 🏆
Description: Hosted during the  Economic Forum Annual Meeting, the Awards honour visionary Chief Sustainability Officers driving meaningful change across leading European companies. Contact us to join, as we’re delighted to offer our readers discounted tickets along with a special illuminem gift!

⭐ 20-24 January | World Economic Forum Annual Meeting | Davos, Switzerland 🇨🇭
Main focus: Ethical Governance 🏛, Social Responsibility 🤝, Sustainable Business 💼
Description: A high-profile summit gathering government officials, business leaders, and civil society to address global challenges. The 2025 agenda focuses on geopolitical shocks, improved living standards, and a just and inclusive energy transition

23-25 January | International Conference on Environmental, Cultural, Economic & Social Sustainability | Miami, USA 🇺🇲
Main focus: ESG 🌿, Sustainable Lifestyle 🍃
Description: An interdisciplinary conference exploring sustainable development for a dynamic planet, emphasising lessons, priorities, and solutions across ecological realities and economic, social, and cultural contexts

27-29 January | Cleantech Forum North America | San Diego, USA 🇺🇲
Main focus: Green Tech 🚀
Speakers: TBA
Description: This forum serves as a nexus for cleantech innovation, unveiling the 2025 Global Cleantech 100 list and facilitating connections among entrepreneurs, investors, and corporates

February

6 February | Economist Impact Carbon Capture Summit | Amsterdam, Netherlands 🇳🇱
Main focus: Carbon 🌫️
Speakers: Romina Pourmokhtari, Minister for Climate and the Environment, Government of Sweden | Kash Burchett, Global Head of Carbon Removal Technologies, HSBC | Myles Allen, Director, Oxford Net Zero
Description: The Carbon Capture Summit is the first-of-its-kind event hosted by The Economist on this topic, with a goal to cut through the hype while bringing businesses, investors, and policymakers together to accelerate CCUS market development

10-11 February | World ESG Summit | Riyadh, Saudi Arabia 🇸🇦
Main focus: ESG 🌿
Speakers: TBA
Description: A solutions-focused forum diving deep into ESG principles, driving breakthroughs in carbon management, climate technologies, and governance strategies

10-12 February | Greenbiz25 | Phoenix, USA 🇺🇲
Main focus: Sustainable Business 🏢, ESG 📊
Description: A collaborative platform empowering the food and retail sectors to lead climate action—accelerating decarbonisation and redefining ESG transparency

11-13 February | Globe x Change | Toronto, Canada 🇨🇦
Main focus: Ethical Governance 🏛, Sustainable Business 💼
Description: North America’s leading climate innovation summit, bringing together change-makers to unlock clean tech potential, foster meaningful collaborations, and inspire impactful climate strategies

18 February | Breathe ESG | Bengaluru, India 🇮🇳 
Main focus: ESG 📊, Sustainable Business 💼
Speakers: ​Kiron Bose, Director, Hilton | Raghuvinder Singh Pathania, Head of Community and Operations, WeWork India | Jatin Shah, Chief Strategy Officer, Colliers International
Description: ​From redefining sustainable procurement to embracing the circular economy, this forum is designed to provide industry leaders with insights, tools, and networks to drive meaningful impact.

25-26 February | CeFPro: Sustainable Finance Europe | London, UK 🇬🇧
Main focus: Sustainable Finance 💰, ESG 🏢
Speakers: Celia Lambert, Alacantra, Head of Sustainable Finance, ESG Compliance of Crédit Agricole | Harshvardhan Varadarajan, Director, Global ESG Climate Risk & Energy Transition of Standard Charted Bank | Isobel Edwards, Global Head of Green, Social and Impact Bond Research of Goldman Sachs Asset Management
Description: The Sustainable Finance Europe event offers a unique opportunity to explore sustainability strategies and gain insights into upcoming regulations like CSDDD. It features interactive sessions on key topics such as biodiversity, ESG resistance, data, and more

⭐ 25-27 February | Resumed UN Biodiversity Conference (COP16) | Rome, Italy 🇮🇹
Main focus: Environmental Sustainability 🐟, Biodiversity 🌳
Description: A significant gathering to finalise decisions on the Kunming-Montreal Global Biodiversity Framework, emphasising the critical role of sustainable agrifood systems in halting biodiversity loss and advancing global conservation targets

March

4-5 March | Responsible Investment Forum | New York, USA 🇺🇸
Main focus: Sustainable Finance 💰, ESG 🏢
Speakers: Chris Brannan, Assistant General Counsel and ESG Officer, Pritzker Private Capital | Marion Hayes, Senior Managing Director, Head of Responsible Investing, Arsenal Capital Partners | Brett Juliano, Head of Sustainability, Strategic Resource Group, THL Partners | Marc Lino, Senior Partner and Global Sustainability Leader, Private Equity and Financial Investors, Bain & Company 
Description: Targeted at the private market, this forum connects institutional investors with ESG and impact investment professionals. Discussions focus on integrating ESG factors into investment strategies and exploring the role of private capital in sustainability

5-6 March | Net Zero & Scope 3 LIVE | London, UK 🇬🇧
Main focus: Net Zero 🌿, Carbon Removal 💨
Speakers: Tom Byrne, Head of Net Zero and Environment, British Airways | Tom Salisbury, Chief Sustainability Officer, GKN Automotive | Darshana Myronidis, Group Sustainability Director, Virgin
Description: This premier conference brings together global sustainability leaders to explore innovative strategies for achieving net-zero emissions and effective carbon removal, with access to expert panels, interactive workshops, and networking opportunities

5-7 March | World Sustainable Development Summit 2025 | New Delhi, India 🇮🇳
Main focus: ESG 🏢, Environmental Sustainability 🌍
Speakers: Ms. Nisha Bakker, Director of The Ocean Cleanup | Mr. Ranjit Barthakur, Founder of Balipara Foundation | Dr. Jennie Dodson, Senior Director of the World Business Council for Sustainable Development (WBCSD) | Ms. Sujata Gupta, Director of Asian Development Bank
Description: The World Sustainable Development Summit (WSDS) is the annual flagship multistakeholder convening organized by The Energy and Resources Institute (TERI). As the only independently convened international Summit on sustainable development and environment, based in the Global South, WSDS strives to provide long-term solutions for the benefit of global communities by assembling the world’s most enlightened leaders and thinkers on a single platform

⭐ 7 March | Verbier Summit | Verbier, Switzerland 🇨🇭
Main Focus: Mitigation 🌍
Description: This intimate summit gathers global visionaries to shape strategies for a sustainable future, through keynote dialogues and outdoor networking

⭐ 10-12 March | The Economist Sustainability Week | London, UK 🇬🇧
Main focus: ESG 🏢, Public Governance 🌍
Speakers: Inger Andersen, Executive Director, UNEP | Benoit Bazin, Chief Executive, Saint-Gobain | Leyla Ertur, Chief Sustainability Officer, H&M
Description: Celebrating its 10th anniversary, this event convenes industry leaders, policymakers, and entrepreneurs to discuss actionable solutions for reducing emissions and enhancing environmental impact

11 March | Climate Risk Reporting 2025 | Hong Kong, 
Main focus: Sustainable Business 💼, ESG 🏢
Speakers: Francesca Messeri, Senior Consultant, Corporate Sustainability of The Carbon Trust | Suhrit Kumar, ESG Solutions Director of Nasdaq | Christin Ziegler, Senior Finance Manager, Sustainability of DWS
Description: Europe's biggest climate reporting event bringing together over 400 reporting leads, investors and reporting experts as they implement the move from TCFD to ISSB and explore strategies to develop credible transition plans and stay on top of all climate reporting obligations 

12 March | The Future of Sustainability | New York City, USA 🇺🇸
Main focus: Sustainable Business 🏢
Description: Organized by a renowned event planner, this one-day conference will feature keynote speeches, panel discussions, and interviews with leaders in sustainable business. Key topics include green finance, circular economy, and innovative business models that prioritize sustainability

🎟️13 March | Insurance in a Changing World | London, UK 🇬🇧
Main focus: Sustainable Finance 💰
Speakers: Peter Maurer, President of Basel Institute on Governance and Fmr. President of International Committee of the Red Cross | David Howden, Founder and CEO of Howden | Noam Unger, Director of Sustainable Development and Resilience Initiative at the Center for International and Strategic Studies | Emma Howard Boyd, Chair of ClientEarth
Description: Organized by The Conduit, the event is a full-day conference exploring the role that the industry is playing in uncertain times to shape a truly resilient and innovative global economy. Contact us to join or use the discount code 𝐈𝐂𝐖𝐈𝐋𝐋 to get over 33% off on conference tickets

12-13 March | World Ocean Summit & Expo | Tokyo, Japan 🇯🇵
Main focus: ESG 🏢, Public Governance 🌍
Speakers: Peter Thomson, UN Secretary-General’s special envoy for the ocean | Vidar Helgesen, Executive Secretary, IOC-UNESCO
Description: Organized by Economist Impact, this summit gathers ocean stakeholders to share insights and promote sustainable ocean economies. The event features discussions on marine conservation, sustainable practices, and innovative solutions for ocean health

18-19 March | Wall Street Green Summit | New York City, USA 🇺🇲
Main focus: Sustainable Finance 💰, Green Tech 🚀
Speakers: David Garrison Founder & CEO of Climate and Capital Connect (Moderator) | Peter Fusaro, Founder of The Wall Street Green Summit | Desmond Wheatley, President, CEO & Chairman of Beam Global | Lorraine Wilson, Founder & Principal of Blue Horizon Economy
Description: As one of the longest-running sustainable finance events, the summit connects industry leaders to explore the role of finance in addressing climate change

19-21 March | Villars Institute Summit | Villars-sur-Ollon, Switzerland 🇨🇭
Main Focus:  Mitigation 🌍
Speakers: Grethel Aguilar, Acting Director General of the International Union for Conservation of Nature (IUCN) | Robert Berendes, Executive Partner at Flagship Pioneering and Chairman of the Board of Indigo | Marco Lambertini, WWF Former International Director General and Special Envoy WWF 
Description: A retreat-style convention of senior executives, policymakers, and thought leaders dedicated to reshaping leadership for a sustainable future. Combining reflective dialogue with practical strategies, the summit fosters collaboration to address global sustainability challenges

March

28-30 March | Climate Reality Leadership Training | Paris, France 🇫🇷
Main focus: Climate Change 🌱
Speakers: Al Gore, Former US Vice President and Founder and Chairman of The Climate Reality Project | Laurence Tubiana, President and CEO of European Climate Foundation | Anne Hidalgo, Mayor, City of Paris 
Description: Join former U.S. Vice President Al Gore and a distinguished panel of experts for an immersive three-day training designed to equip individuals with the knowledge and tools to drive ambitious climate solutions through in-depth workshops, presentations, and networking sessions

31 March-1 April | Climate Chance Europe Africa | Marseille, France 🇫🇷
Main focus: Adaptation 🌍
Speakers: Antoine Denoix, Director General, AXA Climate | Ronan Dantec, Loire-Atlantique, Climate Change President 
Description: This gathering bridges European and African stakeholders to tackle climate adaptation challenges in the Mediterranean basin, with an aim to deliver actionable recommendations for policymakers ahead of major international climate meetings

April

9-10 April | Industrial Decarbonisation Europe 2025 | Amsterdam, The Netherlands 🇳🇱
Main Focus: Net Zero 🌿
Speakers: Stephane Tondo, Technical Head of Decarbonisation and Governmental Affairs of ArcelorMittal | Tomas Malango, Director of Hydrogen, Renewables and Circular Economy of Repsol | Dr Katharina Beumelburg, Chief Sustainability & New Technologies Officer of Heidelberg Materials
Description: Industrial Decarbonisation Europe 2025 convenes 250+ senior executives from metals and mining, cement, fuels and chemicals, logistics and heavy-duty transport to forge meaningful connections and capitalise on the net zero opportunity

15-16 April | ClimateTech Connect | Washington, D.C., USA 🇺🇸
Main focus: Mitigation 🌍, Green Tech 🚀
Speakers: Sarah Kapnick, Global Head of Climate Advisory of J.P. Morgan | William "Brock" Long, Former Administrator of FEMA and Executive Chairman of Hagerty Consulting | Raghuveer Vinukollu, Head of Climate Insights and Advisory, Munich Re US 
Description: A conference and trade show for leaders advancing innovation in climate resilience and adaptation through technology, bringing together experts from various sectors for keynotes, panel discussions, and TED-style talks

19-27 April | SF Climate Week | San Francisco, USA 🇺🇲
Main focus: Climate Change 🌱, Ethical Governance 🌍
Description: A week-long series of independently organized events throughout the Bay Area, fostering collaboration among climate organisations, leaders, and the community to address climate challenges and drive innovation

20-21 April | Global Climate Action Summit | San Francisco, USA 🇺🇸
Main focus: Climate Change 🌱, Ethical Governance 🌍
Description: A premier event that brings together government leaders, climate activists, and business executives. The summit focuses on accelerating global efforts to meet climate targets, with sessions on policy innovation, climate finance, and renewable energy technologies

20-24 April | EarthX2025 | Dallas, USA 🇺🇲
Main focus: Biodiversity 🌳, Renewables ⚡
Speakers: Susan Eisenhower, International Security Expert and Author | David Howell, Former Director, CIA | Hap Klopp, Founder and CEO, The North Face
Description: As one of the world's largest environmental gatherings, this event features immersive exhibitions and expert panels promoting conservation and renewable energy technologies, attracting a global audience committed to environmental stewardship

23-26 April | ChangeNow | Paris, France 🇫🇷
Main focus: Environmental Sustainability 🌍, ESG 💡
Description: A world-renowned event showcasing groundbreaking solutions for the planet. It brings together visionaries and entrepreneurs to tackle pressing environmental and social challenges

24-25 April | GLF Forests 2025 | Bonn, Germany/Online 🇩🇪
Main focus: Environmental Sustainability 🐟, Biodiversity 🌳
Description: A global gathering of Indigenous leaders, policymakers, scientists, and innovators focused on protecting, restoring, and sustainably managing the world’s forests to lay the foundations for a resilient, productive and just future for forests on the road from Baku to Belém. The GLF is a dynamic platform for knowledge exchange, bold action, and transformative partnerships 

28 April-9 May | Basel Convention COP-17 | Geneva, Switzerland 🇨🇭
Main focus: Environmental Sustainability 🌍
Description: A critical assembly of global policymakers and environmental experts dedicated to strengthening international protocols on hazardous waste management, aiming to protect communities and ecosystems from adverse impacts

29-30 April | Green Hydrogen Summit UK | London, UK 🇬🇧
Main focus: Renewables ⚡, Green Hydrogen 🌱
Speakers: William Lochhead, Deputy Director and Head of Hydrogen Production, Storage and Industrial Carbon Capture Business Models of DESNZ | Joe Williams, Deputy Chief Executive Officer of Green Hydrogen Organisation | Helena Anderson, Chief Operating Officer of  Ikigai
Description: This premier event brings together policymakers, industry leaders, and innovators to explore green hydrogen's role in Europe's energy transformation, focusing on policy frameworks, technological advancements, and investment opportunities

29 April-1 May | Accelerating the Circular Economy | Colorado, USA 🇺🇸
Main focus: Sustainable Business 💼, ESG 📊
Speakers: Deanna Bratter, Chief Sustainability Officer of Crocs | Eva Gladek, Founder and CEO of Metabolic | Steven Nickel, Director of Operations of Google
Description: Circularity is the premier gathering of professionals advancing solutions for the circular economy. Focused on accelerating systems change, Circularity empowers attendees to rethink how we make, sell, and circulate products in order to build a just, resilient, and regenerative economy

May

⭐  5-8 May | Ecosperity Week | Singapore 🇸🇬
Main Focus: Carbon 🌫️, Green Tech ⚡
Description: A flagship event with a spotlight on Asia’s transition to a low-carbon future, convening global leaders, policymakers, and innovators to explore scalable decarbonisation solutions, progressive energy policies, and sustainable financing strategies

7-8 May | Turing Fest | Edinburgh, Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿 
Main focus: Green Tech 🚀, Sustainable Business 💼
Description: Scotland's premier tech conference bringing together innovators from various industries and leaders in technology, product development, and growth

⭐ 12-13 May | WaterVent | Oldenburg, Germany 🇩🇪
Main focus: Water 🐟, Green Tech 🚀
Speakers: Gert-Jan Maasdam, Founding Partner of BlueNorth | Xavier van Slooten, Associate at PureTerra Ventures | Booky Oren, Chairman & CEO of Booky Oren Global
Description: An international platform that connects water technology entrepreneurs with investors and industry stakeholders, offering a unique matchmaking approach by maintaining a balanced ratio of entrepreneurs to investors, creating intimate settings tailored to participants' business needs

13-16 May | World Circular Economy Forum | São Paulo, Brazil 🇧🇷
Main focus: Environmental Sustainability 🌍
Description: An invite-only event spotlighting sustainable growth, regenerative economy and, the role of the production sector in transitioning toward a circular economy

13-14 May | World ESG and Climate Summit | Amsterdam, Netherlands 🇳🇱
Main focus: Environmental Sustainability 🌍, ESG 📊
Speakers: Lisa Linzbach, Global Sustainability (ESG & GoGreen) Programs Lead, DHL | James Woodhead, Head of Sustainability & ESG, EMEA | Katsiaryna Souvandjiev, ESG Funding and Innovation Lead, Raiffeisen Bank International AG
Description: A premier international event dedicated to promoting sustainable development and building ESG integration in various sectors featuring an array of activities, including keynote addresses by renowned speakers, thought-provoking panel discussions, interactive workshops, and networking sessions on climate finance, biodiversity and ESG

14 May | Sustainability Data America 2025 | New York, USA 🇺🇸
Main focus: Net Zero 🌿, Sustainable Business 💼
Description: Environmental Finance's annual Sustainability Data America conference providing attendees with solutions-focused, practical insights on how to streamline compliance friendly reporting processes, identify decision useful data for investors and harness the potential of AI

19–20 May | Impact Investing Forum 2025 | London, UK 🇬🇧
Main focus: Sustainable Finance 💰, ESG 🏢
Description: This leading event focuses on social impact investment, ESG funds, UN Sustainable Development Goals, and sustainable investing, bringing together investors and professionals from the UK and Europe

20–21 May | Carbon Unbound East Coast | New York City, USA 🇺🇸
Main focus: Carbon Removal 🌫️
Description: This premier summit gathers senior executives, investors, policymakers, and innovators to accelerate gigaton-scale carbon removal solutions. The event features in-depth analyses of the evolving U.S. political landscape's impact on CDR, strategies to boost demand, and discussions on equitable outcomes

20-22 May | Greentech Festival | Berlin, Germany 🇩🇪
Main focus: Green Tech 🚀, Sustainable Business 💼
Description: A global platform uniting innovators, change-makers, and communities to showcase cutting-edge green technologies and drive industry decarbonisation

🎟️⭐ 21 May | The Conduit Innovator Awards | London, UK 🇬🇧
Main focus: Sustainable Business 💼
Speakers: Anthony Murphey, Founder & Managing Director of Prime Advocates | Eva-Maria Dimitriadis, Managing Partner of Conduit Connect | Ivo Devereux, Co-founder of Sapling Spirits
Description: An event that recognises and awards young changemakers aged 18 to 28 who are pioneering impactful solutions to global challenges in areas such as Climate & Sustainability, Education, Social Justice & Inclusion, and Health & Wellbeing

21-22 May | Climate & Impact Summit Europe | London, UK 🇬🇧
Main focus: Sustainable Finance 💰, ESG 🌿
Speakers: Bas Eickhout, Vice-Chair of the Environment Committee, European Parliament | Julia Souder CEO of Long Duration Energy Storage Council | Linda-Eling Lee, Founding Director and Head of the MSCI Sustainability Institute
Description: The Climate & Impact Summit combines the expertise of Moral Money, providing a powerful forum for leaders in business, finance, and policy to tackle climate challenges and drive progress toward the SDGs, with a focus on actionable solutions and meaningful impact

24-26 May | Paloneo Summit | Rittergut Remeringhausen, Germany 🇩🇪
Main focus: Sustainable Finance 💰
Description: A summit for next-generation entrepreneurs, investors, and artists to forge new alliances at the crossroads of de-globalisation and Europe's renewal. It offers a unique opportunity to engage in mission-driven collaboration through peer-led discussions, keynotes, and cultural exchange

28-29 May | Sustainability LIVE Chicago | Chicago, Illinois, USA 🇺🇸
Main focus: Sustainable Business 💼, Net Zero 🌿
Speakers: Cara Williams, Global Head of ESG, Climate and Sustainability, Mercer | Timothy D. Adamson, Chief Administrative Officer, Sustainability & ESG, Director of Citi | Amanda Davies, Chief R&D, Procurement and Sustainability Officer of MARS Snacking
Description: A premier event for C/V/D Level sustainability and ESG executives from large-scale organisations across the US and Canada. It offers a unique opportunity to explore the intersections of sustainability with procurement and supply chain management

June

2-3 June | Hamburg Sustainability Conference | Hamburg, Germany 🇩🇪
Main focus: Sustainable Business 💼, 
Description: An action-driven summit that gathers top leaders from politics, business, and civil society to forge bold solutions for a sustainable future, blending high-level dialogue with real-world collaboration to turn ambitions into measurable impact

3-4 June | Ecosummit Berlin | Berlin, Germany 🇩🇪
Main focus: Green Tech 🚀, Net Zero 🌿
Description: Celebrating its 15th anniversary, this is the perfect platform for green startups and investors in energy, mobility, and urban innovation. The event aims to foster collaborations to decarbonize the economy and promote sustainable technologies

3-4 June | Lisbon Energy Summit | Lisbon, Portugal 🇵🇹
Main focus: Energy 💡, Energy Transition 🌿
Description: Endorsed by the Ministry of Environment and Energy, this summit is the Iberian region's leading event focusing on balancing energy security with net-zero ambitions

3-5 June | Global Fashion Summit | Copenhagen, Denmark 🇩🇰
Main focus: Sustainable Lifestyle 🍃
Description: A premier global platform bringing together fashion leaders, innovators, and policymakers to foster collaboration, showcase cutting-edge solutions, and accelerate the industry’s journey toward a sustainable future through curated dialogue and strategic networking

5 June | Midwest Regional Sustainability Summit | Ohio, USA 🇺🇸
Main focus: Environmental Sustainability 🌍
Description: A flagship gathering for Midwest sustainability leaders, the 2025 Summit explores how storytelling drives climate action, accountability, and connection. Held under the theme Sustainable Stories, it offers a unique platform to share impact, forge partnerships, and celebrate solutions for a resilient, equitable future

5-6 June | 3rd ESG & Sustainability Reporting Summit | Berlin, Germany 🇩🇪
Main focus: Sustainable Business 🏢, Net Zero 🌿
Description: This cross-industry event will bring together ESG, sustainability, governance, controlling, reporting, and compliance experts from global brands to share practical examples and innovative solutions for measuring, collecting and reporting ESG data effectively, while meeting regulatory requirements and stakeholder expectations

9-11 June | International Conference on Climate Change and Environmental Sustainability | Amsterdam, Netherlands 🇳🇱
Main focus: Environmental Sustainability 🌍
Description: An international forum that brings together scientists, policymakers, industry leaders, and sustainability experts to exchange knowledge, present innovations, and develop strategies for combating climate change and advancing environmental sustainability on a global scale

⭐ 9–13 June | 2025 UN Ocean Conference | Nice, France 🇫🇷
Main focus: Water 🐟
Description: Co-hosted by France and Costa Rica, this high-level conference aims to accelerate action and mobilise all actors to conserve and sustainably use the ocean by bringing together governments, NGOs, scientists, and the private sector

⭐ 11-12 June | The Economist Sustainability Week | New York, USA 🇺🇸
Main focus: Sustainable Business 💼, Energy Transition 🌿
Description: The event gathers a high-quality business audience of CSOs, CPOs, CFOs, and CEOs together to drive action on sustainability and help businesses become sustainable faster. At this year's edition, new features including, Energy Transition Summit, 50 one to one pre-arranged meetings and Energy Leaders Club will be introduced 

16-18 June | Terra Tuscany | Pisa, Tuscany, Italy 🇮🇹
Main focus: Sustainable Business 💼
Description: An intimate gathering for sustainability professionals, started with illuminem in 2024. Terra Tuscany offers immersive discussions on climate and sustainability, including keynotes, panels, workshops, and networking activities. 

19-21 June | Asia Climate Forum | Singapore 🇸🇬
Main focus: Green Tech 🚀, Sustainable Business 💼
Description: As part of the Singapore International Water Week, this event serves as a global platform for  government officials, private sector representatives, researchers, and key stakeholders to share knowledge and best practices in climate change mitigation and adaptation

21-29 June | London Climate Action Week | London, UK 🇬🇧
Main focus: Green Tech 🚀, Net Zero 🌿
Description: Founded in 2019, this is one of the world’s largest independent climate change events. It brings together individuals, organizations, and communities to host a diverse range of events focused on finding global solutions to climate change

🎟️⭐ 23 June | Climate and the Future of Health | London, UK 🇬🇧
Main focus: Sustainable Lifestyle 🍃
Description: A pivotal event organised to address the escalating intersection of climate change and public health. Leading experts, innovators, and policymakers will gather to explore the urgent health challenges posed by climate-driven phenomena such as record-breaking heatwaves and emerging disease outbreaks

⭐ 24-25 June | Reset Connect London | London, UK 🇬🇧
Main focus: Sustainable Business 💼, Green Tech 🚀, Net Zero 🌿
Description: The flagship event of London Climate Action Week, showcasing the latest in clean energy, green finance, and impact investments to accelerate net-zero strategies and sustainable growth

25 June | The Good Ripple Experience | London, UK 🇬🇧
Main focus: Ethical Governance 🏛, Sustainable Business 💼
Description: A gathering of changemakers to spark connection and collaboration for a better world

July

1-2 July | Green Hydrogen Summit Europe | Lisbon, Portugal 🇵🇹
Main focus: Renewables ⚡, Green Hydrogen 🌱
Description: This premier event brings together policymakers, industry leaders, and innovators to explore green hydrogen's role in Europe's energy transformation, focusing on policy frameworks, technological advancements, and investment opportunities

8-10 July | Asia Climate Summit | Bangkok, Thailand 🇹🇭
Main focus: Carbon 🌫️, Sustainable Finance 💰
Description: The premier forum for carbon market leaders and policymakers across Asia-Pacific to accelerate high-integrity climate finance and market solutions. This year's focus is on the scaling of Article 6, CORSIA, and regional compliance markets while advancing nature-based and tech-driven decarbonization ahead of COP30

10-12 July | Waste Management Europe Conference and Exhibition | Bologna, Italy 🇮🇹
Main focus: Waste 🗑️
Description: As Europe's leading event focused on waste management and the circular economy, this conference brings together global experts to discuss innovative solutions and aims to accelerate positive change in waste management, recycling, reuse, and circularity

29-30 July | Australian Clean Energy Summit | Sydney, Australia 🇦🇺
Main focus: Renewables ⚡, Energy Transition 🌿
Description: Hosted by the Clean Energy Council, this flagship conference unites thought leaders and decision-makers from industry, government, and finance to share models, trends, and technological innovations driving the nation's energy transformation

August

2-3 August | Earth Aid Live | Multiple locations in one weekend
Main focus: Sustainable Lifestyle 🍃
Description: A bold, decade-long global event series organised in the spirit of Live Aid but built for the climate era to unite industry, finance, and sustainability leaders to fuel the world’s shift to a low-carbon economy. Spanning multiple cities and continents, and with star-studded lineups still to come, organisers aim to spark action far beyond fundraising — inspiring individuals, communities, companies, and governments alike and to set a new standard for “net zero carbon” events globally

September

4-11 September | Euronext Sustainability Week | Milan, Italy 🇮🇹
Main focus: Sustainable Finance 💰
Description: A week-long event focused on sustainable finance, bringing together companies, investors, and global experts for debates, case studies, and direct dialogue through in-person and digital events

⭐ 10-11 September | International Conference on Sustainable Development (ICSD) | Rome, Italy 🇮🇹
Main Focus: Environmental Sustainability 🌍
Description: The ICSD, organized by the European Center of Sustainable Development with CIT University, is a platform for sharing ideas, research findings, and professional discussions on Sustainability Science. It brings together scholars, educators, and practitioners committed to advancing sustainability across disciplines

⭐ 11-12 September | Rethink Event | WanChai, Hong Kong 🇭🇰
Main Focus: Sustainable Business 💼
Description: A transformative platform focused on circular economy solutions and sustainable innovation. Industry leaders, policymakers, and entrepreneurs come together to reimagine business models for a resource-efficient future

5-17 September | The Drop | Malmö, Sweden 🇸🇪
Main Focus: Green Tech 🚀, Sustainable Business 💼
Description: A dynamic gathering of climate tech innovators, investors, and visionaries, designed to accelerate solutions to the climate crisis through thought-provoking discussions, hands-on workshops, and networking opportunities

15-19 September | Impact Week | Suntech City, Singapore  🇸🇬 
Main focus: Sustainable living 🏡, Sustainable Business 💼, Ethical Governance 🏛
Description: A catalytic festival where business, philanthropy, capital, and community come together to reimagine the systems that serve life. Rooted in the vision of a Well-being Economy, this five-day festival experience seeks to unlock new models for regeneration, coherence, and shared prosperity

15-21 September | Harvard Climate Week | Massachusettes, US  🇺🇸 
Main Focus: Climate Change 🌳, Environmental Sustainability 🌍, Ethical Governance 🏛
Description: An annual event that gathers leaders from government, business, the non-profit sector, and academia to explore actions, enhance resilience to a changing climate and advance efforts to reduce greenhouse gas emissions

⭐ 29 September - 2 October | Building Bridges | Geneva, Switzerland 🇨🇭
Main focus: Sustainable Finance 💰
Description: Europe's leading forum for sustainable finance, renowned for launching transformative initiatives, like the Carbon Accelerator Programme for the Environment (CAPE), and aligning financial systems with sustainability goals. Read more on the 2024 edition

October

1-2 October | London Climate Tech Show | London, UK 🇬🇧
Main focus: Green Tech 🚀
Description: The UK's largest event dedicated to the rapidly evolving climate technology sector, uniting innovators, investors, and industry leaders. Explore sustainable solutions and network with key stakeholders committed to combating climate change

6-7 October | Sustainability Week Europe | Amsterdam, Netherlands 🇳🇱
Main focus: Corporate Social Responsibility 💼
Description: This event brings together European CXOs to accelerate sustainable business transformations. With a focus on actionable insights, the programme includes case studies, success stories, and guidance on navigating new EU regulations

6-7 October | NAT5 LIVE+ | Mexico City, Mexico 🇲🇽
Main focus: Biodiversity 🌳, Sustainable Finance 💰
Description: A Latin America–based forum centered on biodiversity credits, regenerative finance, and nature-based solutions, bringing together project developers, investors, and policymakers to accelerate nature-positive finance and conservation markets

6-9 October | World Energy Week 2025 | Panama City, Panama 🇵🇦
Main focus: Energy Transition ⚡, Sustainable Business 💼, Environmental Sustainability 🌍
Description: The flagship energy event of the World Energy Council, hosted in partnership with Panama, brings together leaders and experts from over 100 countries. Held in Panama City, it convenes high-level voices from governments, businesses, and civil society to bridge regional realities with global priorities, assess progress since the 26th World Energy Congress, and accelerate solutions for a just and effective energy transition

9-15 October | IUCN World Conservation Congress | Abu Dhabi, UAE 🇦🇪
Main focus: Environmental Sustainability 🐟, Biodiversity 🌳
Description: The IUCN World Conservation Congress is the largest gathering of nature conservation experts leaders and decision-makers in the world, with goal to help shape global priorities for nature conservation and climate change for the coming decade and beyond

⭐ 12-15 October | Gitex Impact | Dubai, UAE 🇦🇪
Main focus: Green Tech 🚀, Sustainable Business 💼
Description: This groundbreaking platform connects climate-tech pioneers, ESG innovators, and impact investors, showcasing cutting-edge solutions and bold strategies aimed at driving sustainable business models and fostering public-private partnerships

⭐ 16-18 October | Venice Conference on Climate Change & Sustainability | Venice, Italy 🇮🇹
Main focus: Environmental Sustainability 🌍
Description: The key sustainability event of the Adenauer Foundation, Bocconi University, Venice University, and Politecnico di Milano, bringing together over 100 leading experts. With illuminem as media partner, it convenes high-level voices including the EU Commissioner, Izabella Teixeira (fmr. Minister of Environment of Brazil), and O. Morton (The Economist), alongside top academics, CEOs, and CSOs.

13-16 October | Sustainable Brands | San Diego, USA 🇺🇸
Main focus: Sustainable Business 💼, Corporate Social Responsibility 🤝
Description: This even brings innovators and leaders together to reimagine business for the planet through immersive workshops, visionary keynotes, and networking events

14 October | SOSV Climate Tech Summit | Online 🌐
Main Focus: Green Tech 🚀
Description: A virtual gathering spotlighting pioneering startups and investment opportunities in climate tech by connecting entrepreneurs with investors to accelerate innovation for a sustainable future

16-18 October | Arctic Circle Assembly | Reykjavik, Iceland 🇮🇸
Main focus: Environmental Sustainability 🌍
Description: A leading forum for policymakers, scientists, and industry leaders to address the critical challenges of Arctic sustainability and global climate change. The event facilitates dialogue and cooperation on issues impacting the Arctic region and beyond

October

🎟️⭐ 21 October | Green Economy Forum: Financing the Green Transition | London, UK 🇬🇧
Main focus: Sustainable Finance 💰
Description: An exclusive event that convenes industry, financial, and sustainability leaders to address the challenges and opportunities in funding the global shift toward a low-carbon economy, with goal to foster knowledge sharing and innovative solutions to overcome financial barriers in the green transition

21-22 October | Carbon Unbound Europe | London, UK 🇬🇧
Main Focus: Carbon Removal 🌫️
Description: An event exploring carbon removal technologies and market mechanisms essential to achieving net-zero targets, with hands-on workshops and expert panels

21-23 October | World Conference on Climate Change & Sustainability | Milan, Italy 🇮🇹
Main Focus: Sustainable living 🏡
Speakers: Dr. Patricia Maria DeMarco, Senior Scholar, Chatham University United States | Dieter Brockmeyer, Co-Founder and Director Innovation & TIME at Diplomatic World Institute | 
Kaisa Hansen, CEO & Founder at Compact Estonia
Description: This event will unite global leaders, policymakers, scientists, and innovators to address urgent climate challenges and advance sustainable solutions. Featuring top experts, it will showcase innovations in climate adaptation, green infrastructure, and sustainable urban development

November

4-6 November | Smart Cities Convention | Barcelona, Spain 🇪🇸
Main focus: Green Tech 🚀, Sustainable Living 🏡
Description: A leading global hub for urban innovation — the event brings together key players from business, government, and civil society to explore the future of smarter, greener, and more inclusive cities, tackling challenges like mobility, energy, and citizen engagement

4-7 November | Ecomondo – The Green Technology Expo | Rimini, Italy 🇮🇹
Main focus: Green Tech 🚀
Description: Europe’s leading event for the green and circular economy, bringing together key players from industry, policy, and research to showcase cutting-edge technologies, drive innovation, and foster sustainable business models. With a focus on waste, water, energy, and environmental regeneration, Ecomondo creates a dynamic platform for shaping the future of a sustainable, circular economy

4-7 November | Greenbuild International Conference and Expo | California, USA 🇺🇸
Main focus: Green Tech 🚀, Sustainable Living 🏡
Description: Greenbuild International Conference and Expo, hosted by Informa Connect and the U.S. Green Building Council, is the world’s leading event for green building. It unites professionals and industry leaders to drive innovation and policies in sustainable construction

5-7 November | PRI in Person 2025 | Sao Paulo, Brazil 🇧🇷
Main focus: Sustainable Finance 💰 
Description: PRI in Person is the world’s leading responsible investment conference, convening over 1,500 delegates each year to hear the latest developments, discuss best practice and network with delegates from around the globe

⭐ 6 November | The Conduit Green Economy Forum: Financing the Green Transition | London, UK 🇬🇧
Main focus: Social Responsibility 🤝, Net Zero 🌿
Description: An exclusive forum gathering leaders in finance, policy, and sustainability to discuss actionable strategies for funding the green transition — with a focus on innovative financial instruments and collaborative approaches

8-10 November | Asia Conference on Environment & Sustainable Development (ACESD) | Fukuoka, Japan 🇯🇵
Main focus: Environmental Sustainability 🌍
Description: ACESD is the premier forum for the presentation of new advances and research results in the fields of Environment and Sustainable Development. The conference will bring together leading academic scientists, researchers and scholars in the domain of interest from around the world