19 Best Carbon Startups to Watch in 2025

The Definitive Seedtable Ranking of Carbon 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 19 start-ups with an aggregate funding of $2.5b. The average funding per company in this subset is $132.6m.

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

emitWise logo

emitWise

EmitWise helps large businesses monitor and reduce their carbon footprints.

7

Funding Rounds

$39.7m

Money raised

LanzaTech logo

LanzaTech

A New Zealand industrial biotechnology company developing a gas fermentation platform for converting concentrated industrial emissions into valuable chemicals.

6

Funding Rounds

$265.4m

Money raised

Svante logo

Svante

Svante is a Burnaby-based manufacturer of carbon capture technology to collect CO2 at its sources.

6

Funding Rounds

$161.3m

Money raised

Indigo logo

Indigo

Indigo is an agricultural technology company utilizing natural microbiology and digital technologies to improve farmers' profitability, environmental sustainability and consumer health.

8

Funding Rounds

$1.2b

Money raised

Enerkem logo

Enerkem

Enerkem is a Quebec-based company producing biofuels and renewable chemicals made from non-recyclable waste.

2

Funding Rounds

$302.7m

Money raised

Normative (software company) logo

Normative (software company)

Normative is a Stockholm-based software company helping enterprises address their social and environmental impact.

3

Funding Rounds

$13.7m

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

Cool Planet Energy Systems logo

Cool Planet Energy Systems

Cool Planet Energy Systems is a technology company developing systems for producing biocarbon and renewable, carbon-negative fuel from biomass.

9

Funding Rounds

$204.2m

Money raised

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

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

Rubi Laboratories logo

Rubi Laboratories

Rubi Laboratories turns carbon emissions into carbon-negative textiles for the fashion industry, with a proprietary synthetic biology technology.

2

Funding Rounds

$13.2m

Money raised

A-Gas logo

A-Gas

A-Gas is engaged in the supply and lifecycle management of refrigerants and associated products and services.

1

Funding Rounds

$115.8m

Money raised

Patch logo

Patch

Patch helps clients make their businesses carbon neutral .

1

Funding Rounds

$4.5m

Money raised

Barghest Building Performance logo

Barghest Building Performance

bbp is an award-winning energy efficiency company that enables businesses to achieve their carbon neutrality and sustainability goals.

1

Funding Rounds

$33.0m

Money raised

AirCarbon Exchange logo

AirCarbon Exchange

AirCarbon Exchange is a Singapore-based company founded by Thomas McMahon.

2

Funding Rounds

$15.0m

Money raised

Cultivo Land PBC logo

Cultivo Land PBC

Cultivo Land PBC is a Pleasanton, California-based carbon company founded in 2019.

2

Funding Rounds

$5.0m

Money raised