Seed climate tech investors in the UK
Seed-stage companies are raising their first priced rounds. These are usually SEIS and EIS rounds from angels, syndicates, crowdfunding platforms and seed funds. Climate and clean energy companies often pair grant funding with specialist climate funds and angel syndicates focused on sustainability. 96 investor-backed seed climate, energy and environment companies are in Pulse, and 16 raised a first funding round in the last year.
- Investor-backed companies
- 96
- Active investors, 2 years
- 371
- Rounds, 2 years
- 53
- Median round
- £145k
Who is investing
In the last two years 60 funds, firms and family offices and 305 angels took shares in seed climate, energy and environment companies, with the latest round in Aug 2026. These are the firms backing the most of these companies:
| Firm | Type | Companies |
|---|---|---|
| Volta Partners Limited | Fund or investment firm | 3 companies |
| Ad Hoc Ventures, LLC | Fund or investment firm | 1 company |
| Alternative Investment Partners Ltd | Fund or investment firm | 1 company |
| Amz Holdings Limited | Holding company (possible family office) | 1 company |
| Arctern Ventures Fund II (NR), LP | Fund or investment firm | 1 company |
| Arctern Ventures Fund II, LP | Fund or investment firm | 1 company |
| Arka Venture Labs Fund Management LLC | Fund or investment firm | 1 company |
| Antler | Fund or investment firm | 1 company |
See all 371 active investors, including angels, with what they've backed, estimated cheque sizes and who they invest alongside.
Rounds and valuations
Over the last two years, 53 funding rounds were raised by seed climate, energy and environment companies, an estimated £18.6m, with a median round of about £145k. 16 of the companies raised their first priced round in the last 12 months. 51% of these valuations carry a High confidence rating.
How Climate, energy and environment compares
Climate, energy and environment companies make up 0% of the 74,284 investor-backed companies in Pulse. The median round of £145k is below the £176k median for the whole UK market. The most active firm in these companies is Volta Partners Limited, in 3 companies.
Questions
How many investors back seed climate, energy and environment companies?
Pulse found 371 outside investors taking shares in seed climate, energy and environment companies in the last two years: 60 funds, firms and family offices, and 305 angels.
How much do seed climate, energy and environment companies raise?
Over the last two years 53 rounds were raised, an estimated £18.6m in total. The median round was about £145k.
How accurate are the amounts?
They are Pulse estimates, each with a confidence rating. 51% of recent valuations here carry a High confidence rating; the rest are marked Medium or Low.
Can I see every investor?
Pulse subscribers see every outside investor by name, with portfolios and co-investors, from £39.99 a month plus VAT (£47.99 inc. VAT). Contact details are not included and names are not linked to personal profiles.