The best climate tech events for founders in 2027 are the ones where you can pitch, meet the corporates and utilities that could buy from you, and find investors who understand long hardware and energy cycles. These are the ten worth planning your year around, from Barcelona, Paris, Zurich, Munich and London to Abu Dhabi, San Diego, San Francisco and New York.
Climate tech covers clean energy, storage, mobility, industrial decarbonisation, carbon removal, circular economy and agrifood solutions. We chose events with a pitch stage, a startup area or the right buyers and investors in the room, with Europe first and the best of the rest of the world. We checked every date on the organiser's own website and mark each one as Confirmed (date on the official site), Announced (reliable second source only) or Expected (based on past editions only). All ten below are Confirmed.
This article is regularly updated with new events. Do you know about an event that needs to be added? Send us some info and we will see if it's a fit.
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Top 10 Climate Tech Startup Events of 2027 at a Glance
The 10 best climate tech startup events of 2027
1. World Future Energy Summit at Abu Dhabi Sustainability Week: 12–14 January 2027, Abu Dhabi
The year's first big climate meeting point: Abu Dhabi Sustainability Week brings energy buyers, governments and sovereign investors to one city, and the World Future Energy Summit is its exhibition. No startup programme for 2027 is published yet, so book your meetings in advance. The week also hosts the Zayed Sustainability Prize ceremony, which received a record 10,233 entries for 2027. Abu Dhabi Sustainability Week
2. Cleantech Forum North America: 25–27 January 2027, San Diego
Small on purpose: Cleantech Group calls it a curated, quality-over-quantity event for innovators, investors and corporates. It offers one-to-one meetings with companies from its Global Cleantech 100 list and an innovator Demo Hour. If you are raising a seed or Series A round for hardware or energy, this is one of the most efficient rooms of the year.
3. 4YFN climate tech track: 1–4 March 2027, Barcelona
Not a climate-only event, but it has its own climate tech track and a large investor crowd. The 4YFN Awards give the top 20 startups €1,500, a free exhibition pod and four passes, and the five finalists €2,500. Startups at 4YFN
4. World Agri-Tech Innovation Summit: 9–10 March 2027, San Francisco
Climate solutions for food and farming meet the agribusinesses that buy them. Selected startups exhibit and pitch in the Start-Up Arena, where the audience votes for a favourite. The London edition follows in September.
5. ChangeNOW Summit: 26–28 April 2027, Paris
The most affordable major climate event in Europe for a young company. ChangeNOW showcases solutions for the planet, and startups can choose an exhibit and pitch option to present to impact investors. The super early bird discount (40%) runs until 4 February 2027 and the early bird (30%) until 30 March 2027.
6. Climate Week Zurich: 10–15 May 2027, Zurich
A business-led climate week in one of Europe's financial centres, aimed at companies that want to act on climate. There is no dedicated startup track, so pick the sessions and side events where your buyers will be and book meetings around them.
7. The smarter E Europe and Intersolar: 7–10 June 2027, Munich
The place to meet the energy industry at scale. It has a start-up area with a Start-up Stage for pitches, and The smarter E AWARD takes entries from 1 December 2026 to 12 March 2027. Start-ups at The smarter E
8. London Climate Action Week: 19–27 June 2027, London
Nine days in Europe's climate finance capital, with hub events and independent events run by different organisers. Most of them are free, so it is a good first climate week for a bootstrapped founder.
9. Climate Week NYC: 19–26 September 2027, New York
Run by Climate Group during the UN General Assembly, it fills New York with hundreds of events. Investors and corporate buyers come from all over the world, so plan your meetings weeks ahead.
10. World Agri-Tech Innovation Summit: 21–22 September 2027, London
Europe's main meeting of agrifood investors and agribusiness corporates. Startups can apply for the Start-Up Arena. It falls in the same week as Climate Week NYC, so choose the market that matters more to you.
Also worth a look
- World Sustainable Energy Days, Wels, Austria, 2–5 March 2027: an energy policy and research conference with a Young Energy Researchers strand. wsed.at
- Hannover Messe, Hannover, 5–8 April 2027: the industrial fair for energy and industrial transition; Startup Area packages start at €3,100. Startups at Hannover Messe
- WindEurope Annual Event, Bella Center, Copenhagen, 20–22 April 2027: the wind industry's main event, with a Startup Pavilion. Startup Pavilion
- Hello Tomorrow Global Summit, Amsterdam, 1–3 June 2027 (date on the homepage): a deep tech summit with climate solutions, a startup challenge and a Women in Deep Tech strand. hello-tomorrow.org
- VivaTech, Paris Expo Porte de Versailles, 16–19 June 2027: a general tech show where Startup Challenges can win free exhibition space; no dedicated climate programme is published. Startups at VivaTech
- Smart City Expo World Congress, Fira Gran Via, Barcelona, 2–5 November 2027 (Announced by a Team France Export pavilion page; not yet on the official site): cities, mobility and energy. smartcityexpo.com
- COP32, Addis Ababa, Ethiopia, November 2027 (Announced; exact dates not on the UN page yet): side events and pavilions for climate solutions. unfccc.int
- SET Award 2027 by the German Energy Agency (dena): a global competition for energy transition startups with a €10,000 equity-free prize; apply by 30 November 2026. SET Award 2027
Dates not announced yet
- SF Climate Week: the 2026 edition ran in April; the official site says the 2027 calendar goes live in January 2027.
- Cleantech Forum Europe: the 2026 edition is on 16–18 November 2026 in Sitges, Spain; 2027 dates are not out.
- The Business Booster by EIT InnoEnergy: the 2026 edition is on 28–29 October 2026 at Messe München; 2027 dates are not out.
- Slush, Helsinki: the 2026 edition is on 18–19 November 2026; it has climate content but no dedicated climate track was announced.
- EU Sustainable Energy Week: last held in June 2026; 2027 dates are not out.
- ClimateLaunchpad by EIT Climate-KIC: the 2026 Global Final was on 14 October 2026; national calls for 2027 usually open in spring.
- TechBBQ, Copenhagen: the 2026 edition was in August; 2027 dates are not on the official site.
Why these events matter: climate tech funding in numbers
- Climate tech venture and growth investment reached $40.5 billion in 2025, up 8% from 2024, while the number of deals fell 18% to 1,545, according to Sightline Climate (CTVC).
- Europe's share slid to $10.1 billion, its lowest level since 2020 (same report). Dealroom counts $41.5 billion for climate tech startups in 2025, nearly ten times the level of five years earlier.
- Climate tech startups founded only by women won 5.3% of deals and 1.1% of total funding in the first nine months of 2024; mixed-gender teams won 21% of deals and 7% of the money, according to RMI.
Building a climate or impact startup? Start with our sustainable business model canvas examples and templates.
How to choose the right climate tech event
- Decide what you need this year. Investors: Cleantech Forum North America, 4YFN and ChangeNOW. Industrial and energy buyers: the World Future Energy Summit and The smarter E. Food and farming: World Agri-Tech.
- Use the climate weeks. Zurich, London and New York run hundreds of side events, many of them free, so you can meet investors without an expensive pass.
- Apply early. The smarter E AWARD closes on 12 March 2027, and pitch slots and startup areas fill months before each show.
- Watch the clashes. Climate Week NYC and World Agri-Tech London share a week in September; London Climate Action Week comes right after The smarter E in June.
- Follow up. Climate deals take time, so write to the people you meet within 48 hours and keep in touch. See more startup competitions.
List your event
Do you organise a climate tech conference, a cleantech pitch competition or a climate week? Send us the name, dates, city and official link, and we'll check whether it fits this list.
This article is regularly updated with new events. Do you know about an event that needs to be added? Send us some info and we will see if it's a fit.
🔗 Add an awesome event
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FAQ
What are the best climate tech startup events in 2027?
Our top picks are ChangeNOW in Paris, the 4YFN climate tech track in Barcelona, The smarter E Europe in Munich, London Climate Action Week, Cleantech Forum North America in San Diego, Climate Week NYC and the World Agri-Tech summits in San Francisco and London.
When is London Climate Action Week 2027?
From 19 to 27 June 2027, with events across London. Most events are free, and you register for each one separately.
When is Climate Week NYC 2027?
From 19 to 26 September 2027 in New York, during the UN General Assembly.
Which climate tech events have pitch competitions in 2027?
The 4YFN Awards in Barcelona, the Start-up Stage and The smarter E AWARD in Munich (entries until 12 March 2027), the World Agri-Tech Start-Up Arenas, ChangeNOW's exhibit and pitch option and the SET Award (apply by 30 November 2026).
What is the cheapest climate tech event for a startup?
The climate weeks in London, Zurich and New York have many free events. Of the paid summits, ChangeNOW's startup pass costs €250 before discounts and €150 with the current discount, tax excluded.
How much money goes into climate tech?
Climate tech venture and growth investment reached $40.5 billion in 2025, up 8% from 2024, according to Sightline Climate. Startups founded only by women still receive around 1% of the money.
About the Author
Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. Throughout her startup experience she has applied for multiple startup grants at the EU level, in the Netherlands and Malta, and her startups received quite a few of those. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.
