The conference brief
Upcoming editionLondon Climate Action Week 2027
London Climate Action Week is nine days of independently hosted events across London each June, timed between the UN's Bonn climate talks and the UN General Assembly and COP. The think tank E3G hosts the platform, billed as one of the world's largest independent climate events, and the program runs from grassroots community gatherings to major international conferences and ministerial roundtables.
- Cross-sustainability
- Conference dates
- June 19–27, 2027
- Location
- London, UK
- Multiple independently hosted venues across London
- Ticket guide
- On request
- See pass types and eligibility
- Format
- In person
- Organized by E3G
01 / Make the call
Is this the right room?
Emitree's assessment of audience fit. Conference access does not establish buying intent or guarantee meetings.
Consider it if
Your buyers include climate policymakers, corporates, financiers, or NGOs active in Europe, and you want a week where dozens of independently hosted sessions on carbon, ESG, energy, and circularity run in one city so you can pick the rooms that match your niche.
Consider another event if
You need a single ticketed trade floor with one program and one badge. LCAW has no central conference or exhibition, so you find and register for individual hosted events yourself, which takes real legwork and pays off unevenly across niches.
02 / Understand the audience
Who attends
The 2026 edition, the most recent completed one, drew 100,000+ participants across 1,300+ events, with 100+ countries and 25 governments represented across 6 continents, 30 flagship events, and 13 hubs. Hosts range from the London Stock Exchange, Westminster, and the Excel Centre to borough sustainability festivals and community groups. No single organizer curates attendee seniority, since each event sets its own guest list.
How large is the event?
2026 edition actuals, per the official post-event recap: 100,000+ participants, 1,300+ events, 100+ countries, 25 governments across 6 continents, 30 flagship events, 13 hubs. The official site describes 2026 as the eighth edition, which makes June 2027 the ninth. No attendance figures for 2027 are published yet; the site currently carries only a save-the-date.
Companies and organizations
A sample of organizations featured by the organizer, including attendees, sponsors, exhibitors, partners and speakers. Each group shows its published role and edition.
Partners
Series partners- E3G
- Children's Investment Fund Foundation
- Wellcome
- Bloomberg Philanthropies
- British International Investment
- Sustainable Ventures
- Green Finance Institute
- IIED
- Sustainable Energy for All
Find the people who fit your offer.
We research the London Climate Action Week attendee list, qualify the accounts against what you sell and run the outreach for your team.
Book a call to discuss your conference list.
03 / Check your access
Tickets and eligibility
London Climate Action Week has no central ticket or entry fee. It is a platform of hundreds of independently organized events, each priced (or not) by its own host. Community and borough events are typically free, while flagship conferences and specific hosted sessions may charge their own fees. No unified price list exists, because LCAW does not sell tickets on behalf of its hosts.
Rates and eligibility can change. Confirm the current price, tax treatment and included sessions with the organizer.
Check registration with the organizer ↗04 / Plan the details
Before you book
Only the dates, 19-27 June 2027, are confirmed on the official site. The 2027 program, hub list, and individual event pricing are not published yet. Included on scale and reputation rather than on the density of published program detail, since the 2027 program is still unannounced.
- Venue
- Multiple independently hosted venues across London
- Organizer
- E3G
The practical questions
Before you decide
Is London Climate Action Week 2027 still upcoming?
This edition is listed for June 19–27, 2027. Check the organizer's page for changes before booking.
Where can I find the London Climate Action Week exhibitor list?
We have not linked a public exhibitor directory for this edition. Ask the organizer about current directories and attendee access.
Does a company listing confirm who will attend?
A sponsor, exhibitor or speaker listing establishes that published role. It does not establish which employees will attend or whether they are buying. Previous-edition examples remain historical.
How can Emitree help with London Climate Action Week?
We research relevant accounts using public conference sources and any lists you provide. We qualify the accounts against your offer, run agreed outreach and record replies and meetings in your CRM.
The research behind this page
Sources and checks
Original research: . Later checks cover the subjects named beside each source.
Organizer figures retain their stated edition and basis. Emitree's audience-fit guidance is an assessment of the published information.
Your next conversation starts here
Know who is worth meeting.
Tell us what you sell and who you need to reach at London Climate Action Week. We research the accounts, qualify the fit and run the outreach.
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