Climate, energy and environment investors in the South East
The South East combines the Oxford and Reading technology clusters with a dense commuter-belt angel community and strong university spinout activity. Climate and clean energy companies often pair grant funding with specialist climate funds and angel syndicates focused on sustainability. 148 investor-backed climate, energy and environment companies in the South East are in Pulse, and 6 raised a first funding round in the last year.
- Investor-backed companies
- 148
- Active investors, 2 years
- 234
- Rounds, 2 years
- 24
- Median round
- £1.29m
Who is investing
In the last two years 73 funds, firms and family offices and 160 angels took shares in climate, energy and environment companies in the South East, with the latest round in Jun 2026. These are the firms backing the most of these companies:
| Firm | Type | Companies |
|---|---|---|
| University of Oxford | University | 2 companies |
| 52africa, LP | Fund or investment firm | 1 company |
| 6466 Investments Pty Ltd | Fund or investment firm | 1 company |
| Ab Two Investments Limited | Fund or investment firm | 1 company |
| Aerie, LP | Fund or investment firm | 1 company |
| Ahmad Tea Investment FZ LLP | Fund or investment firm | 1 company |
| Akhs Holdings Limited | Holding company (possible family office) | 1 company |
| Ap Ventures Fund III LP | Fund or investment firm | 1 company |
See all 234 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, 24 funding rounds were raised by climate, energy and environment companies in the South East, an estimated £82.9m, with a median round of about £1.29m. 6 of the companies raised their first priced round in the last 12 months. 50% of these valuations carry a High confidence rating.
How South East compares
The South East has 16% of the UK's climate, energy and environment sector's 912 investor-backed companies. The median round of £1.29m is above the £582k median for the UK's climate, energy and environment sector, and above the UK-wide £176k. By stage, 20 are at seed, 15 have exited, 7 are at venture stage. The most active firm in these companies is University of Oxford, in 2 companies.
Questions
How many investors back climate, energy and environment companies in the South East?
Pulse found 234 outside investors taking shares in climate, energy and environment companies in the South East in the last two years: 73 funds, firms and family offices, and 160 angels.
How much do climate, energy and environment companies in the South East raise?
Over the last two years 24 rounds were raised, an estimated £82.9m in total. The median round was about £1.29m.
How accurate are the amounts?
They are Pulse estimates, each with a confidence rating. 50% 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.