# Seed climate Tech investors (2026 list)

> 295 seed climate Tech investors, 82% active in the last 12 months. Led by Y Combinator, Techstars, Andreessen Horowitz. Ranked by what they funded.

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

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

# Seed climate Tech investors

Updated 7 November 2026

Firms we have watched take part in a seed round raised by a climate Tech company in the last two years. Both the stage and the sector are what they did, not what their website says.

[See all 295 *→*](https://millionrounds.com/login?join=1&next=%2Fapp%2Finvestor-lists%2Fseed-climate-investors)The top 25

**295** investors on the list *-1* this week

**6,007** cheques in 12 months *-17%* against the market

**$4.3M** median round they joined *-46%* against the market median

**82%** wrote a cheque in 12 months

**53%** have led a round

## The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

- 1 [Y Combinator](https://millionrounds.com/fund/y-combinator) *Deploying now* Accelerator · United States **6,412** **$3M** median round **Oct 2026** last seen
- 2 [Techstars](https://millionrounds.com/fund/techstars) *Deploying now* VC firm · United States **2,989** **$1.2M** median round **Nov 2026** last seen
- 3 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) *Deploying now* VC firm · United States **1,661** **$27M** median round **Nov 2026** last seen
- 4 [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) *Deploying now* VC firm · United States **1,598** **$12M** median round **Nov 2026** last seen
- 5 [Plug and Play](https://millionrounds.com/fund/plug-and-play) *Deploying now* Accelerator · United States **1,561** **$5M** median round **Nov 2026** last seen
- 6 [Bpifrance](https://millionrounds.com/fund/bpifrance) *Deploying now* Government · France **1,151** **$4.5M** median round **Oct 2026** last seen
- 7 [Gaingels](https://millionrounds.com/fund/gaingels) *Deploying now* Private equity · United States **1,010** **$8M** median round **Oct 2026** last seen
- 8 [SOSV](https://millionrounds.com/fund/sosv) *Deploying now* VC firm · United States **951** **$2.5M** median round **Nov 2026** last seen
- 9 [EIC Accelerator](https://millionrounds.com/fund/eic-accelerator) *Deploying now* Government · European Union **875** **$4.3M** median round **Oct 2026** last seen
- 10 [Kima Ventures](https://millionrounds.com/fund/kima-ventures) *Deploying now* VC firm · France **859** **$4.2M** median round **Nov 2026** last seen
- 11 [Antler](https://millionrounds.com/fund/antler) *Deploying now* VC firm · United Kingdom **729** **$1M** median round **Nov 2026** last seen
- 12 [Crowdcube](https://millionrounds.com/fund/crowdcube) *Deploying now* VC firm · United Kingdom **715** **$615K** median round **Sept 2026** last seen
- 13 [Innovate UK](https://millionrounds.com/fund/innovate-uk) *Deploying now* VC firm · United Kingdom **704** **$1.2M** median round **Oct 2026** last seen
- 14 [BDC Capital](https://millionrounds.com/fund/bdc-venture-capital) *Deploying now* VC firm · Canada **685** **$6M** median round **Sept 2026** last seen
- 15 [Citibank](https://millionrounds.com/fund/citi) *Deploying now* Growth equity · United States **566** **$20M** median round **Oct 2026** last seen
- 16 [Founder Collective](https://millionrounds.com/fund/founder-collective) *Deploying now* VC firm · United States **502** **$8M** median round **Sept 2026** last seen
- 17 [8VC](https://millionrounds.com/fund/8vc) *Deploying now* VC firm · United States **497** **$23M** median round **Oct 2026** last seen
- 18 [Global Brain Corporation](https://millionrounds.com/fund/global-brain-corporation) *Deploying now* VC firm · Japan **480** **$7.6M** median round **Sept 2026** last seen
- 19 [Soma Capital](https://millionrounds.com/fund/soma-capital) *Deploying now* VC firm · United States **456** **$4.2M** median round **Oct 2026** last seen
- 20 [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
- 21 [DCVC](https://millionrounds.com/fund/data-collective) *Deploying now* VC firm · United States **431** **$29M** median round **Nov 2026** last seen
- 22 [True Ventures](https://millionrounds.com/fund/true-ventures-2) *Deploying now* VC firm · Netherlands **397** **$8.7M** median round **Oct 2026** last seen
- 23 [SFC Capital](https://millionrounds.com/fund/sfc-capital) *Deploying now* Angel network · United Kingdom **379** **$431K** median round **Nov 2026** last seen
- 24 [Draper Associates](https://millionrounds.com/fund/draper-associates) *Deploying now* VC firm · United States **370** **$6M** median round **Nov 2026** last seen
- 25 [Speedinvest](https://millionrounds.com/fund/speedinvest) *Deploying now* VC firm · Austria **345** **$6.7M** median round **Nov 2026** last seen

**270 more on this list**

All 295 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%2Fseed-climate-investors)

## The Newest Cheques

Rounds this list's investors joined most recently

- **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 **[Ocient](https://millionrounds.com/company/ocient)** Series C · $100M *With* [In-Q-Tel](https://millionrounds.com/fund/iqt)
- **5** Nov **[Siggy](https://millionrounds.com/company/siggy)** Pre-seed · $6M *Led by* [Village Global](https://millionrounds.com/fund/village-global-2)
- **5** Nov **[firmly](https://millionrounds.com/company/firmly)** Series A · $15M *With* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund)
- **5** Nov **[Potential Sciences](https://millionrounds.com/company/potential-sciences)** Seed *With* [Portfolio Ventures](https://millionrounds.com/fund/will-martin)
- **5** Nov **[Circularity Fuels](https://millionrounds.com/company/circularity-fuels)** Seed · $7M *Led by* [DCVC](https://millionrounds.com/fund/data-collective)

## Stages This Year

4,593 rounds

- Seed **21%**
- Venture **21%**
- Series A **15%**
- Pre-seed **12%**
- Series B **6%**
- Other **23%**

## What They Backed

Sectors, last 12 months

- AI **1,684**
- Biotech **306**
- Healthcare **271**
- Fintech **234**
- Big Data & Analytics **229**
- Energy **229**

## Cheques by Quarter

Led Joined

1,876 Q1 25

1,898 Q2 25

1,976 Q3 25

1,968 Q4 25

1,918 Q1 26

1,645 Q2 26

1,356 Q3 26

323 Q4 26

The last bar is the quarter still running.

## Lists Like This

- [Seed AI investors 2,922](https://millionrounds.com/lists/seed-ai-investors)
- [Series A AI investors 2,490](https://millionrounds.com/lists/series-a-ai-investors)
- [Series B AI investors 1,557](https://millionrounds.com/lists/series-b-ai-investors)
- [Pre-seed AI investors 1,286](https://millionrounds.com/lists/pre-seed-ai-investors)
- [Growth AI investors 1,186](https://millionrounds.com/lists/growth-ai-investors)
- [Series A fintech investors 950](https://millionrounds.com/lists/series-a-fintech-investors)
- [Series C AI investors 930](https://millionrounds.com/lists/series-c-ai-investors)
- [Seed fintech investors 925](https://millionrounds.com/lists/seed-fintech-investors)
- [Series A biotech investors 650](https://millionrounds.com/lists/series-a-biotech-investors)

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

## Reading for founders in climate and energy

- Taming the Sun: Innovations to Harness Solar Energy and Power the Planet Varun Sivaram · 2018 4.06 from 510 ratings on Goodreads Climate and energy Innovation About the book How solar could spark a clean-energy transition through transformative innovation--creative financing, revolutionary technologies, and flexible energy systems. Solar energy, once a niche application for a limited market, has become the cheapest and fastest-growing power… On AmazonListen on Audible
- Race for Tomorrow: Survival, Innovation and Profit on the Front Lines of the Climate Crisis Simon Mundy · 2022 4.22 from 207 ratings on Goodreads Climate and energy Innovation Company building About the book In this extraordinary journey through twenty-six countries, Simon Mundy meets the people on the front lines of the climate crisis, showing how the struggle to respond is already reshaping the modern world – shattering communities, shaking up global business, and propelling a… On AmazonListen on Audible
- The Elements of Power: Gadgets, Guns, and the Struggle for a Sustainable Future in the Rare Metal Age David S. Abraham · 2015 4.06 from 264 ratings on Goodreads Climate and energy Company building About the book Our future hinges on a set of rare metals that few of us have even heard of. In this eye-opening book, a natural resource strategist reveals the critical importance of these transformative elements to our technological lifestyle and the consequences of our reliance upon them,… On AmazonListen on Audible
- Scale: The Universal Laws of Growth, Innovation, Sustainability, and the Pace of Life in Organisms, Cities, Economies, and Companies Geoffrey B. West · 2017 4.11 from 5,764 ratings on Goodreads Climate and energy Company building Innovation About the book The former head of the Sante Fe Institute, visionary physicist Geoffrey West is a pioneer in the field of complexity science, the science of emergent systems and networks. The term “complexity” can be misleading, however, because what makes West’s discoveries so beautiful is… On AmazonListen on Audible

More books for founders and investors on the [Reading List](https://millionrounds.com/reading-list?role=founder&industry=climate&stage=seed).

As an Amazon Associate we earn from qualifying purchases.

## Quick answers about seed climate Tech investors

### Who are the most active seed climate Tech investors?

By cheques observed, the most active are Y Combinator, Techstars, Andreessen Horowitz, Alumni Ventures and Plug and Play.

### How many seed climate Tech investors are there?

295 are on record. 82% made an investment in the last 12 months and 53% have led a round.

### Which stages do seed climate Tech investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (29%) and Series A (21%).

### How big are the rounds seed climate Tech investors join?

The typical (median) round among the leading investors here is $5M.

### Which sectors do seed climate Tech investors back most?

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

### Which seed climate Tech investors lead the most rounds?

Andreessen Horowitz (114 led), 8VC (26 led) and DCVC (12 led).

### Where are seed climate Tech investors based?

Among the most active, most are based in the United States (14), the United Kingdom (4) and France (2).

### What have seed climate Tech investors invested in recently?

Recent rounds include Vensum Power (Series A, Nov 2026, with Lifeline Ventures), Ocient (Series C, Nov 2026, with In-Q-Tel) and Siggy (Pre-seed, Nov 2026, with Village Global).

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