# Cleantech lead investors (2026 list)

> 239 cleantech lead investors, 89% active in the last 12 months. Led by Andreessen Horowitz, General Catalyst, Lightspeed Venture Partners.

Source: https://millionrounds.com/lists/cleantech-lead-investors (Millionrounds; every figure on the page links to its filing or article)

[Investor Lists](https://millionrounds.com/lists)

# Cleantech lead investors

Updated 7 November 2026

Firms we have watched lead a round raised by a cleantech company in the last two years. Leading is rarer than taking part, and it is the role a founder most needs filled.

[See all 239 *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fcleantech-lead-investors)The top 25

**239** investors on the list *+11* this week

**3,490** cheques in 12 months *+7%* against the market

**$16M** median round they joined *+94%* against the market median

**89%** wrote a cheque in 12 months

**100%** have led a round

## The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

- 1 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) *Deploying now* VC firm · United States **1,661** **$27M** median round **Nov 2026** last seen
- 2 [General Catalyst](https://millionrounds.com/fund/general-catalyst) *Deploying now* VC firm · United States **1,387** **$27M** median round **Nov 2026** last seen
- 3 [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) *Deploying now* VC firm · United States **1,341** **$35M** median round **Nov 2026** last seen
- 4 [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) *Deploying now* VC firm · United States **1,128** **$26M** median round **Nov 2026** last seen
- 5 [Founders Fund](https://millionrounds.com/fund/founders-fund) *Deploying now* VC firm · United States **1,122** **$15M** median round **Oct 2026** last seen
- 6 [Index Ventures](https://millionrounds.com/fund/index-ventures) *Deploying now* VC firm · United Kingdom **1,027** **$31M** median round **Nov 2026** last seen
- 7 [SOSV](https://millionrounds.com/fund/sosv) *Deploying now* VC firm · United States **951** **$2.5M** median round **Nov 2026** last seen
- 8 [EIC Accelerator](https://millionrounds.com/fund/eic-accelerator) *Deploying now* Government · European Union **875** **$4.3M** median round **Oct 2026** last seen
- 9 [B Capital](https://millionrounds.com/fund/b-capital) *Deploying now* VC firm · United States **495** **$14M** median round **Oct 2026** last seen
- 10 [Spark Capital](https://millionrounds.com/fund/spark-capital) *Deploying now* VC firm · United States **471** **$40M** median round **Oct 2026** last seen
- 11 [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) *Deploying now* Government · United States **453** **$2M** median round **Sept 2026** last seen
- 12 [DCVC](https://millionrounds.com/fund/data-collective) *Deploying now* VC firm · United States **431** **$29M** median round **Nov 2026** last seen
- 13 [Balderton Capital](https://millionrounds.com/fund/balderton-capital) *Deploying now* VC firm · United Kingdom **368** **$30M** median round **Oct 2026** last seen
- 14 [Octopus Ventures](https://millionrounds.com/fund/octopus-ventures) *Deploying now* VC firm · United Kingdom **355** **$10M** median round **Oct 2026** last seen
- 15 [Venture Kick](https://millionrounds.com/fund/venture-kick) *Deploying now* Accelerator · Switzerland **329** **$2.1M** median round **Nov 2026** last seen
- 16 [QED Investors](https://millionrounds.com/fund/qed-investors) *Deploying now* VC firm · United States **314** **$29M** median round **Oct 2026** last seen
- 17 [International Finance Corporation](https://millionrounds.com/fund/international-finance-corporation-ifc) *Deploying now* Government · United States **283** **$39M** median round **Oct 2026** last seen
- 18 [Valor Equity Partners](https://millionrounds.com/fund/valor-equity-partners) *Deploying now* VC firm · United States **261** **$50M** median round **Nov 2026** last seen
- 19 [European Investment Bank](https://millionrounds.com/fund/european-investment-bank) *Deploying now* Government · Luxembourg **246** **$37M** median round **Nov 2026** last seen
- 20 [CDP Venture Capital](https://millionrounds.com/fund/cdp-venture-capital) *Deploying now* VC firm · Italy **227** **$3.9M** median round **Oct 2026** last seen
- 21 [TPG](https://millionrounds.com/fund/tpg) *Deploying now* Private equity · United States **205** **$91M** median round **Nov 2026** last seen
- 22 [Artesian VC](https://millionrounds.com/fund/artesian) *Deploying now* Asset manager · Australia **201** **$2M** median round **Oct 2026** last seen
- 23 [Alven](https://millionrounds.com/fund/alven) *Deploying now* VC firm · France **192** **$15M** median round **Nov 2026** last seen
- 24 [ANRI](https://millionrounds.com/fund/anri) *Deploying now* VC firm · Japan **189** **$4.2M** median round **Nov 2026** last seen
- 25 [Inflection Point Ventures](https://millionrounds.com/fund/inflection-point-ventures) *Deploying now* VC firm · United States **181** **$1M** median round **Oct 2026** last seen

**214 more on this list**

All 239 are in the app, with filters for stage, sector and market. A free account shows 10 per search, Pro up to 1,000.

[See the whole list *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fcleantech-lead-investors)

## The Newest Cheques

Rounds this list's investors joined most recently

- **7** Nov **[Arka Fincap](https://millionrounds.com/company/arka-fincap)** Other *Led by* [TPG](https://millionrounds.com/fund/tpg)
- **6** Nov **[Vensum Power](https://millionrounds.com/company/vensum-power)** Series A · $10M *Led by* [Lifeline Ventures](https://millionrounds.com/fund/lifeline-ventures)
- **6** Nov **[Humble Robotics](https://millionrounds.com/company/humble-robotics)** Series A · $51M *With* [Eclipse](https://millionrounds.com/fund/eclipse)
- **5** Nov **[i14](https://millionrounds.com/company/i14)** Seed · $6.3M *With* [Virescent Ventures](https://millionrounds.com/fund/virescent-ventures)
- **5** Nov **[Circularity Fuels](https://millionrounds.com/company/circularity-fuels)** Seed · $7M *Led by* [DCVC](https://millionrounds.com/fund/data-collective)
- **5** Nov **[Claimlane](https://millionrounds.com/company/claimlane)** Series A · $6.3M *With* [Verb Ventures](https://millionrounds.com/fund/verb-ventures)

## Stages This Year

2,722 rounds

- Seed **18%**
- Series A **18%**
- Venture **15%**
- Series B **10%**
- Other **7%**
- Other **32%**

## What They Backed

Sectors, last 12 months

- AI **1,017**
- Energy **238**
- Biotech **204**
- Cleantech **182**
- Fintech **175**
- Healthcare **173**

## Cheques by Quarter

Led Joined

815 Q1 25

852 Q2 25

877 Q3 25

1,004 Q4 25

1,020 Q1 26

906 Q2 26

855 Q3 26

318 Q4 26

The last bar is the quarter still running.

## Lists Like This

- [AI lead investors 1,723](https://millionrounds.com/lists/ai-lead-investors)
- [Lead investors in United States 1,370](https://millionrounds.com/lists/lead-investors-in-united-states)
- [Seed lead investors 1,091](https://millionrounds.com/lists/seed-lead-investors)
- [Series A lead investors 920](https://millionrounds.com/lists/series-a-lead-investors)
- [Fintech lead investors 763](https://millionrounds.com/lists/fintech-lead-investors)
- [Series B lead investors 579](https://millionrounds.com/lists/series-b-lead-investors)
- [Growth lead investors 555](https://millionrounds.com/lists/growth-lead-investors)
- [Robotics lead investors 397](https://millionrounds.com/lists/robotics-lead-investors)
- [Pre-seed lead investors 396](https://millionrounds.com/lists/pre-seed-lead-investors)

[All investor lists *→*](https://millionrounds.com/lists)

## Quick answers about cleantech lead investors

### Who are the most active cleantech lead investors?

By cheques observed, the most active are Andreessen Horowitz, General Catalyst, Lightspeed Venture Partners, Khosla Ventures and Founders Fund.

### How many cleantech lead investors are there?

239 are on record. 89% made an investment in the last 12 months and 100% have led a round.

### Which stages do cleantech lead investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (24%) and Series A (24%).

### How big are the rounds cleantech lead investors join?

The typical (median) round among the leading investors here is $26M.

### Which sectors do cleantech lead investors back most?

In the last 12 months, mostly AI, Energy and Biotech.

### Which cleantech lead investors lead the most rounds?

Andreessen Horowitz (114 led), General Catalyst (97 led) and Lightspeed Venture Partners (83 led).

### Where are cleantech lead investors based?

Among the most active, most are based in the United States (15), the United Kingdom (3) and European Union (1).

### What have cleantech lead investors invested in recently?

Recent rounds include Arka Fincap (Other, Nov 2026, with TPG), Vensum Power (Series A, Nov 2026, with Lifeline Ventures) and Humble Robotics (Series A, Nov 2026, with Eclipse).

Built from the rounds we watched, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections)