29 Best Carbon Offset Startups to Watch in 2025

The Definitive Seedtable Ranking of Carbon Offset Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 29 start-ups with an aggregate funding of $1.6b. The average funding per company in this subset is $55.9m.

Last update to the database: Feb 18, 2025. See changelog.

Track over 71,000 companies

Discover
Fast-growing Global startups

Seedtable uses technology and people to track over 71,000 companies to help you find the right ones to partner with.

Pricing + Sign up
Pachama logo

Pachama

Pachama is a company estimating carbon storage in forests and predicting future deforestation or potential for forest restoration with the use of satellite images.

4

Funding Rounds

$74.3m

Money raised

South Pole (company) logo

South Pole (company)

South Pole is a Zurich-based climate solutions company offering sustainable project development services in order to provide carbon offset credits to businesses and organizations.

1

Funding Rounds

Minimum (carbon offsetting company) logo

Minimum (carbon offsetting company)

Minimum is a carbon tracking and carbon offsetting company

3

Funding Rounds

$5.3m

Money raised

Climeworks logo

Climeworks

Climeworks is a clean technology company that has developed technology for carbon dioxide (CO2) capture from ambient air. It was founded in 2009 and is located in Zurich, Switzerland.

10

Funding Rounds

$876.0m

Money raised

Nori (company) logo

Nori (company)

Nori is a company that hosts an open-source, blockchain-based market for purchasing carbon offsets.

4

Funding Rounds

$12.4m

Money raised

Wren (company) logo

Wren (company)

Wren provides a subscription-based web application to offset an individuals' carbon footprint.

2

Funding Rounds

$1.7m

Money raised

Newlight Technologies logo

Newlight Technologies

A carbon sequestration technology and bioplastics company based in Huntington Beach, California, founded in 2003, that uses their technology to capture carbon from greenhouse emissions for production of bioplastics.

7

Funding Rounds

$151.6m

Money raised

Carbon Engineering logo

Carbon Engineering

Carbon Engineering is building technologies to capture CO2 directly from the atmosphere, and to use that CO2 in the synthesis of clean transportation fuels that displace crude oil.

9

Funding Rounds

$119.5m

Money raised

NovoNutrients logo

NovoNutrients

NovoNutrients produce microbes that break down industrial emissions of carbon dioxide and reassemble them into aquaculture feed.

7

Funding Rounds

$5.0m

Money raised

Treefera logo

Treefera

Treefera is a UK company developing an AI-powered data platform to map trees globally for carbon offsetting and conservation.

3

Funding Rounds

$6.6m

Money raised

Muir AI logo

Muir AI

Muir AI is a climate technology company that offers services and solutions to reduce carbon emmissions that result from the supply chain.

1

Funding Rounds

$3.3m

Money raised

Solidia Technologies logo

Solidia Technologies

Solidia Technologies is a Piscataway, New Jersey-based technology company offering solutions for using CO2 for manufacturing construction and industrial products.

4

Funding Rounds

$105.0m

Money raised

EnergySage logo

EnergySage

EnergySage is a Boston-based company offering solar power product comparison and carbon offset programs.

4

Funding Rounds

$6.9m

Money raised

Native Energy logo

Native Energy

Native Energy is a Burlington, Vermont-based company that provides carbon offsetting solutions for businesses.

2

Funding Rounds

3Degrees logo

3Degrees

3Degrees is a San Francisco-based provider of carbon offset and renewable energy services and solutions.

2

Funding Rounds

$4.0m

Money raised

Pond Technologies logo

Pond Technologies

Pond Technologies is a Markham-based developer of algae based carbon capture technologies which processes their algae production into nutraceuticals, animal feed, and petroleum derivatives.

7

Funding Rounds

$13.8m

Money raised

Community Energy, Inc logo

Community Energy, Inc

CEI develops and invests in wind farms and solar farms in North East USA. It also markets the electricity it produces under the brand "NewWind Energy" to consumers.

1

Funding Rounds

$4.0m

Money raised

TerraPass (company) logo

TerraPass (company)

TerraPass is a San Francisco-based nonprofit organization offering projects for environmental cleanup and carbon offset.

1

Funding Rounds

$5.8m

Money raised

Green Mountain Energy logo

Green Mountain Energy

Green Mountain Energy is an Austin, Texas-based renewable energy company offering services for carbon offset.

1

Funding Rounds

$100.0m

Money raised

EcoSapiens logo

EcoSapiens

Web3/NFT project enabling consumers to make a positive impact on the climate.

1

Funding Rounds

$1.5m

Money raised

Ecoact logo

Ecoact

Ecoact is a Paris-based company founded in 2005 by Gerald Maradan.

1

Funding Rounds

EcoCart (company) logo

EcoCart (company)

EcoCart is an e-commerce plugin for merchants to offer carbon neutral orders and a Chrome extension for shoppers looking to lower their carbon footprint.

1

Funding Rounds

$3.0m

Money raised

Supercritical logo

Supercritical

Supercritical is a carbon removal marketplace

3

Funding Rounds

$28.8m

Money raised

Helio AG logo

Helio AG

Tool to optimize cloud workloads while reducing emissions and waste.

1

Funding Rounds

$5.2m

Money raised

WGL Energy logo

WGL Energy

WGL Energy is a Washington, D.C.-based energy and natural gas provider engaged in carbon offset activities.

1

Funding Rounds

$75.0m

Money raised

Patch logo

Patch

Patch helps clients make their businesses carbon neutral .

1

Funding Rounds

$4.5m

Money raised

ClimatePartner logo

ClimatePartner

ClimatePartner is a Munich-based carbon offset company.

1

Funding Rounds

Climate Friendly logo

Climate Friendly

Climate Friendly is an Australia-based carbon offset consulting firm providing carbon offset projects for corporations and individuals.

1

Funding Rounds

Evergrow logo

Evergrow

Carbon finance company providing offtake and capital solutions for projects that avoid, capture, or remove carbon emissions.

1

Funding Rounds

$7.0m

Money raised