29 Best Carbon Offset Startups to Watch in 2026

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 $1.8b. The average funding per company in this subset is $62.3m.

Last update to the database: Apr 14, 2026. See changelog.

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4

Funding Rounds

$74.3m

Money raised

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

$105.0m

Money raised

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

9

Funding Rounds

$119.5m

Money raised

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.

11

Funding Rounds

$1.0b

Money raised

Climeworks is a direct Air Capture (DAC) technology developer founded in 2009 by Christoph Gebald.

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4

Funding Rounds

$12.4m

Money raised

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

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4

Funding Rounds

$36.6m

Money raised

AI-powered data platform to map trees globally for carbon offsetting and conservation.

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7

Funding Rounds

$151.6m

Money raised

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.

1

Funding Rounds

$100.0m

Money raised

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

1

Funding Rounds

$75.0m

Money raised

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

3

Funding Rounds

$28.8m

Money raised

Supercritical is a carbon removal marketplace

3

Funding Rounds

$5.3m

Money raised

Minimum is a carbon tracking and carbon offsetting company

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7

Funding Rounds

$5.0m

Money raised

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

Key people:

1

Funding Rounds

$3.3m

Money raised

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

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4

Funding Rounds

$6.9m

Money raised

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

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7

Funding Rounds

$13.8m

Money raised

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.

1

Funding Rounds

$5.8m

Money raised

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

1

Funding Rounds

$5.2m

Money raised

Tool to optimize cloud workloads while reducing emissions and waste.

1

Funding Rounds

$7.0m

Money raised

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

Industries:

2

Funding Rounds

$4.0m

Money raised

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

Key people:

1

Funding Rounds

$3.0m

Money raised

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.

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1

Funding Rounds

$4.5m

Money raised

Patch helps clients make their businesses carbon neutral .

1

Funding Rounds

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.

2

Funding Rounds

$1.7m

Money raised

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

2

Funding Rounds

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

1

Funding Rounds

$1.5m

Money raised

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

1

Funding Rounds

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

1

Funding Rounds

Carbonclick is an Auckland-based carbon calculator and carbon offset company for individuals and corporations.

1

Funding Rounds

ClimatePartner is a Munich-based carbon offset company.

Industries:

Location:

1

Funding Rounds

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

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Key people:

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