Data Report

Most Active Climate Tech Investors 2026

Investors ranked by documented funding rounds into climate tech, clean tech and clean energy companies. A cut of the full venture league table.

Snapshot read October 2026. Figures in USD.

Use investor data through the API.
Example request
curl "https://indexed.vc/api/v1/investors?sort=total_investments&order=desc&limit=100" -H "X-API-Key: YOUR_API_KEY"

The API ranks investors by all recorded investments, not by the rounds this report counts, so this is the closest request.

50

Ranked Here

285

Top Firm Rounds

167

Top Firm Led

22,512+

Investors Tracked

The League Table

Ranked by documented funding rounds into climate tech companies participated in and led.

1

Techstars

Accelerator · United States

285167273
2

Y Combinator

Accelerator · United States

13365106
3

Lowercarbon Capital

VC · United States

1194379
4

Breakthrough Energy Ventures

VC · United States

1145775
5

SOSV

Accelerator · United States

1044580
6

European Innovation Council Fund

Government · Belgium

713760
7

Antler

Accelerator · United States

593054
8

Energy Impact Partners

VC · United States

582748
9

Climate Capital

VC · United States

55651
10

Collaborative Fund

VC · United States

541445
11

Khosla Ventures

VC · United States

482733
12

BDC Venture Capital

VC · Canada

432735
13

Temasek

Sovereign · Singapore

431831
14

Plug and Play

Accelerator · United States

43843
15

Alumni Ventures

VC · United States

43338
16

DCVC (Data Collab)

VC · United States

412230
17

Prelude Ventures

VC · United States

392224
18

Union Square Ventures

VC · United States

382025
19

Congruent Ventures

VC · United States

381525
20

Sequoia Capital

VC · United States

341621
21

S2G Ventures

VC · United States

331825
22

U.S. Department of Energy Loan Programs Office

Government · United States

322826
23

New Enterprise Associates

VC · United States

311315
24

Chevron Technology Ventures

VC · United States

30327
25

General Catalyst

VC · United States

291524
26

Founders Fund

VC · United States

291421
27

Toyota Ventures

Corporate VC · United States

291021
28

Valor Equity Partners

PE · United States

28714
29

Sofinnova Partners

VC · France

271717
30

IndieBio

Accelerator · United States

261323
31

GV

Corporate VC · United States

26813
32

TPG (Growth/Rise)

VC · United States

252019
33

Shell

VC · Netherlands

251124
34

True Ventures

VC · United States

241116
35

Soma Capital

VC · United States

24220
36

Andreessen Horowitz

VC · United States

23814
37

Horizons Ventures

VC · Hong Kong

22913
38

GIC

Sovereign · Singapore

211114
39

Equinor Ventures

Corporate VC · Norway

21916
40

Aramco Ventures

Corporate VC · Saudi Arabia

21518
41

Amazon Climate Pledge Fund

VC · United States

21418
42

Capricorn Investment Group

VC · United States

20813
43

Kleiner Perkins

VC · United States

20612
44

Norrsken VC

VC · Sweden

20616
45

Clean Ventures

VC · United States

191317
46

Fifth Wall

VC · United States

191014
47

Obvious Ventures

VC · United States

191012
48

Bpifrance

Investor · France

19616
49

Fifty Years

VC · United States

1959
50

General Atlantic

Growth · United States

181614

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Methodology

Figures are aggregated from Indexed's live database of 100,422 company profiles and 22,512 investors. Company totals include publicly listed and inactive businesses. Company funding totals and individual event tables have different coverage; each report states its population and period. Amounts are shown in USD where available, and undisclosed amounts are excluded from dollar totals. Source coverage varies by record; follow company and event links to inspect supporting evidence. Report generated October 2026. Free to cite with attribution to Indexed.

Totals include recorded grants and other qualifying funding, not just equity. Debt financing, IPO proceeds and exit consideration are excluded from these funding totals. Valuations are company values, not capital raised. How funding is counted.