# Collaborative Fund's Cleantech Investments: 17 Startups in Its Portfolio (2026)

> The 17 Cleantech startups Collaborative Fund has backed, by stage: $441M raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/collaborative-fund-cleantech-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Pre-seed and seed

7

- [Unblock](https://millionrounds.com/company/unblock)
- [Ravel](https://millionrounds.com/company/ravel)
- [AirMyne](https://millionrounds.com/company/airmyne)
- [Vycarb](https://millionrounds.com/company/vycarb)
- [*D* Dandelion](https://millionrounds.com/company/dandelion)
- [MacroCycle Technologies](https://millionrounds.com/company/macrocycle-technologies)
- [Brightly Ventures](https://millionrounds.com/company/brightly-ventures)

## Stage not reported

5

- [Vaulted Deep](https://millionrounds.com/company/vaulted-deep)
- [Found Energy](https://millionrounds.com/company/found-energy)
- [Wasted*](https://millionrounds.com/company/wasted)
- [Seabound](https://millionrounds.com/company/seabound)
- [Osmoses](https://millionrounds.com/company/osmoses)

## Series B

3

- [Quaise Energy](https://millionrounds.com/company/quaise-energy)
- [pH7](https://millionrounds.com/company/ph7)
- [Fishpeople Seafood](https://millionrounds.com/company/fishpeople-seafood)

## Series A

2

- [Dandelion Energy](https://millionrounds.com/company/dandelion-energy)
- [*AF* Acceleron Fusion](https://millionrounds.com/company/acceleron-fusion)

## Segment by segment

### Pre-seed and seed

7 startups · $44M raised

- [**Unblock**](https://millionrounds.com/company/unblock) Unblock is a climate technology company that offers a solution to mitigate emissions. Cayman Islands $14M
- [**Ravel**](https://millionrounds.com/company/ravel) Ravel is a startup company that develops a compact and safe mining system for thin ore deposits. United States $8.2M
- [**AirMyne**](https://millionrounds.com/company/airmyne) AirMyne is a Direct Air Capture (DAC) company based in Berkeley, California, founded in 2022. United States $6.9M
- [**Vycarb**](https://millionrounds.com/company/vycarb) Vycarb is a climate technology company based in Brooklyn, founded in 2022. United States $5.0M
- [*D* **Dandelion**](https://millionrounds.com/company/dandelion) United States $4.5M
- [**MacroCycle Technologies**](https://millionrounds.com/company/macrocycle-technologies) MacroCycle Technologies is a cleantech company based in Cambridge, Massachusetts, founded in 2023. United States $3.0M
- [**Brightly Ventures**](https://millionrounds.com/company/brightly-ventures) Brightly funds Food Rescue Organizations, converting their efforts into trustworthy and ethical carbon credits. United States $2.3M

### Stage not reported

5 startups · $78M raised

- [**Vaulted Deep**](https://millionrounds.com/company/vaulted-deep) Vaulted Deep is a Houston-based company specializing in carbon removal and waste management. United States $67M
- [**Found Energy**](https://millionrounds.com/company/found-energy) Found Energy is a renewable energy company engaging in turning aluminum into a renewable energy carrier. United States $5.4M
- [**Wasted***](https://millionrounds.com/company/wasted) The Wasted app empowers users to fight plastic pollution by rewarding plastic-free actions with discounts on sustainable products. United States $3.2M
- [**Seabound**](https://millionrounds.com/company/seabound) Seabound is a carbon capture technology company. United Kingdom $1.5M
- [**Osmoses**](https://millionrounds.com/company/osmoses) Osmoses engages in decarbonizing gas separations to eliminate one gigaton of carbon emissions per year. United States $500K

### Series B

3 startups · $225M raised

- [**Quaise Energy**](https://millionrounds.com/company/quaise-energy) Quaise Energy is a technology company founded in 2018, originating from the MIT Plasma Science and Fusion Center. United States $180M
- [**pH7**](https://millionrounds.com/company/ph7) pH7 designs and implements sustainable extraction and refining of strategic metals. Canada $33M
- [**Fishpeople Seafood**](https://millionrounds.com/company/fishpeople-seafood) Fishpeople Seafood is a food production company that specializes in providing grocery retail, and sustainable seafood. United States $12M

### Series A

2 startups · $95M raised

- [**Dandelion Energy**](https://millionrounds.com/company/dandelion-energy) Dandelion Energy is a leading residential geothermal company based in Mount Kisco, New York. United States $56M
- [*AF* **Acceleron Fusion**](https://millionrounds.com/company/acceleron-fusion) United States $39M

**How this map is made.** Every startup here works in Cleantech and has raised money in a round we track that names Collaborative Fund as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

[All portfolios](https://millionrounds.com/portfolio-maps)

[Sector portfolio **Collaborative Fund's AI portfolio** 23 startups · $563M](https://millionrounds.com/portfolio-maps/collaborative-fund-ai-portfolio)[Sector portfolio **Collaborative Fund's Fintech portfolio** 15 startups · $3.2B](https://millionrounds.com/portfolio-maps/collaborative-fund-fintech-portfolio)[Sector portfolio **Collaborative Fund's Foodtech portfolio** 14 startups · $307M](https://millionrounds.com/portfolio-maps/collaborative-fund-foodtech-portfolio)[Sector portfolio **Collaborative Fund's Biotech portfolio** 13 startups · $147M](https://millionrounds.com/portfolio-maps/collaborative-fund-biotech-portfolio)[Co-investors **Who invests with Collaborative Fund** 220 co-investors](https://millionrounds.com/portfolio-maps/collaborative-fund-co-investors)[Portfolio map **Collaborative Fund portfolio map** 139 startups · $8.3B](https://millionrounds.com/portfolio-maps/collaborative-fund-portfolio-map)

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