Company lists · Data refreshed September 2026

Top 25 Atmospheric carbon removal companies based in the United States

Name: Atmospheric carbon removal companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 265 companies tracked

RevenueBase identified 265 atmospheric carbon removal companies headquartered in the United States as of September 2026 and tracks 4,657 professional contacts across them, including 2,614 with verified work emails. New York is the largest hub.

This list covers atmospheric carbon removal companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

265Companies

4,657Contacts tracked

2,614Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest atmospheric carbon removal companies based in the United States

Ranked by team size

Top 25 of 265 atmospheric carbon removal companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to atmospheric carbon removal companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	California Resources Corporation	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,095 contacts →
	Partial evidence “California Resources Corporation (CRC) is an independent energy and carbon management company committed to energy transition.” Source: RevenueBase Database · checked Sep 19, 2026
2	Lanzatech	Partial evidence	Skokie, IL, United StatesHQ checked Sep 19, 2026	201-500	338 contacts →
	Partial evidence “Our way of life is built on carbon, from our fuel sources to the materials in our consumer products, but we need a more sustainable way to source it to protect the future of our…” Source: RevenueBase Database · checked Sep 19, 2026
3	Anew Climate	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	200 contacts →
	Partial evidence “Anew Climate is a global leader of diverse climate solutions, bringing innovative products and services to the public and private sectors to help reduce or offset their carbon…” Source: RevenueBase Database · checked Sep 19, 2026
4	Carbon Direct	Partial evidence	New York, United StatesHQ checked Sep 19, 2026	51-200	172 contacts →
	Partial evidence “Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…” Source: RevenueBase Database · checked Sep 19, 2026
5	Heirloom	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	111 contacts →
	Strong evidence “Mitigating the worst impacts of climate change by developing the world’s most cost-effective DAC technology to permanently remove CO2 from the atmosphere.” Source: RevenueBase Database · checked Sep 19, 2026
6	Terradot	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	11-50	85 contacts →
	Indirect evidence “Over millions of years, silicate rock weathering has regulated Earth’s climate.” Source: RevenueBase Database · checked Sep 19, 2026
7	Infinium	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 19, 2026	51-200	79 contacts →
	Indirect evidence “Infinium is reimagining how the world powers, moves, and computes.” Source: RevenueBase Database · checked Sep 19, 2026
8	Mati Carbon	Strong evidence	Houston, United StatesHQ checked Sep 19, 2026	11-50	70 contacts →
	Strong evidence “Mati is a carbon removal company on a mission to remove 100 million tonnes of carbon dioxide from the atmosphere through Enhanced Rock Weathering while creating agronomic and…” Source: RevenueBase Database · checked Sep 19, 2026
9	Capturepoint LLC	Partial evidence	Allen, TX, United StatesHQ checked Sep 19, 2026	51-200	67 contacts →
	Partial evidence “Defining the LEADING EDGE of CARBON MANAGEMENT.” Source: RevenueBase Database · checked Sep 19, 2026
10	Captura	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 19, 2026	51-200	66 contacts →
	Indirect evidence “The ocean is an immensely powerful force of nature, and our greatest ally to reverse the tides on climate change.” Source: RevenueBase Database · checked Sep 19, 2026
11	Carbonfree	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	51-200	62 contacts →
	Partial evidence “Founded with the belief that environmental impact and economic durability must advance together, CarbonFree focuses on solutions for hard to abate industrial sectors where…” Source: RevenueBase Database · checked Sep 19, 2026
12	ION Clean Energy	Partial evidence	Boulder, CO, United StatesHQ checked Sep 19, 2026	11-50	58 contacts →
	Partial evidence “Headquartered in Boulder, Colorado, ION Clean Energy has developed a transformative carbon capture technology that is particularly effective in capturing CO2 emissions from…” Source: RevenueBase Database · checked Sep 19, 2026
13	Carboncapture INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
14	Boomitra	Strong evidence	San Mateo, CA, United StatesHQ checked Sep 19, 2026	51-200	55 contacts →
	Strong evidence “Boomitra works with farmers and ranchers worldwide to increase soil carbon through improved agricultural practices and generate internationally certified carbon removal credits.” Source: RevenueBase Database · checked Sep 19, 2026
15	8 Rivers	Indirect evidence	Durham, United StatesHQ checked Sep 19, 2026	51-200	53 contacts →
	Indirect evidence “8 Rivers is a clean energy and climate technology company leading the global energy industry towards achieving net zero.” Source: RevenueBase Database · checked Sep 19, 2026
16	Vaulted Deep	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	50 contacts →
	Strong evidence “Vaulted is a waste management company that removes carbon.” Source: RevenueBase Database · checked Sep 19, 2026
17	Lithos Carbon	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	n/a	43 contacts →
	Strong evidence “We remove atmospheric carbon for a fraction of the cost while increasing crop yields.” Source: RevenueBase Database · checked Sep 19, 2026
18	Zero Carbon Systems	Strong evidence	Brighton, CO, United StatesHQ checked Sep 19, 2026	51-200	40 contacts →
	Strong evidence “Zero Carbon Systems (ZCS) is a direct air capture company focused on delivering highly scalable, low cost, and low energy solutions for carbon dioxide removal.” Source: RevenueBase Database · checked Sep 19, 2026
19	Aircapture	Partial evidence	Berkeley, CA, United StatesHQ checked Sep 19, 2026	11-50	40 contacts →
	Partial evidence “Aircapture is creating a circular commercial carbon economy utilizing novel Direct Air Capture (DAC) technology.” Source: RevenueBase Database · checked Sep 19, 2026
20	Elimini	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	n/a	40 contacts →
	Indirect evidence “Reducing emissions is essential.” Source: RevenueBase Database · checked Sep 19, 2026
21	Grassroots Carbon	Strong evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	11-50	40 contacts →
	Strong evidence “Powered by nature to achieve impacts far beyond carbon removal.” Source: RevenueBase Database · checked Sep 19, 2026
22	PRAAN	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “Praan is a venture-backed deep tech start-up using breakthrough patent-pending technology for filter-less capture of particulates and carbon dioxide from ambient air.” Source: RevenueBase Database · checked Sep 19, 2026
23	Releaf Earth YC W19	Strong evidence	New York, United StatesHQ checked Sep 19, 2026	51-200	39 contacts →
	Strong evidence “Releaf Earth is a climate technology company pioneering novel sustainable agriculture and carbon removal solutions.” Source: RevenueBase Database · checked Sep 19, 2026
24	NOYA	Partial evidence	Oakland, CA, United StatesHQ checked Sep 19, 2026	11-50	39 contacts →
	Partial evidence “Noya is on a mission to accelerate the world’s transition to carbon negativity.” Source: RevenueBase Database · checked Sep 19, 2026
25	Travertine	Indirect evidence	Boulder, CO, United StatesHQ checked Sep 19, 2026	11-50	37 contacts →
	Indirect evidence “Travertine recycles sulfuric acid for critical mineral production, eliminating the dependance on and OPEX of sulfur inputs.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: atmospheric carbon removal companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names atmospheric carbon removal companies.
Partial evidence: Its own public description names part of atmospheric carbon removal companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name atmospheric carbon removal companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 265 atmospheric carbon removal companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,614 reachable decision-makers.

Free signup · no credit card

View the full list →

Atmospheric carbon removal companies based in the United States at a glance

As of Sep 19, 2026

56.1%Verified-email coverage

17.6Average contacts per company

1-10Median size (employees)

6.8%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

157

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 265 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among atmospheric carbon removal companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “atmospheric carbon removal companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names atmospheric carbon removal companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among atmospheric carbon removal companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,614 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names atmospheric carbon removal companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many atmospheric carbon removal companies are there based in the United States?

RevenueBase identified 265 atmospheric carbon removal companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

California Resources Corporation, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most atmospheric carbon removal companies?

New York leads with 18 headquartered companies, followed by Houston (17) and San Francisco (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,614 verified decision-maker contacts tracked across these 265 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 265 atmospheric carbon removal companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Atmospheric carbon removal companies by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.