Company lists · Data refreshed September 2026

Top 24 Agricultural carbon sequestration nonprofits based in the United States

RevenueBase identified 251 agricultural carbon sequestration nonprofits headquartered in the United States as of September 2026 and tracks 2,345 professional contacts across them, including 909 with verified work emails. New York is the largest hub.

This list covers agricultural carbon sequestration nonprofits 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
251Companies
2,345Contacts tracked
909Verified emails
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The 24 largest agricultural carbon sequestration nonprofits based in the United States

Ranked by team size
Top 24 of 251 agricultural carbon sequestration nonprofits 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 agricultural carbon sequestration nonprofits: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceDurham, NH, United StatesHQ checked Sep 19, 202651-20096 contacts →

Partial evidence

“Regrow powers Agriculture Resilience for today’s leading retailers, CPGs, processors, and farmers.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceHouston, United StatesHQ checked Sep 19, 202611-5070 contacts →

Partial 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
3Indirect evidenceIrvine, CA, United StatesHQ checked Sep 19, 202611-5063 contacts →

Indirect evidence

“Sequoia Climate Foundation believes in a world powered by clean energy, where all people are protected by policies that have averted the worst effects of climate change.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceTampa, FL, United StatesHQ checked Sep 19, 202651-20057 contacts →

Partial evidence

“Agoro Carbon Alliance delivers a solution for the world’s carbon challenge that’s grounded in the soil.”

Source: RevenueBase Database · checked Sep 19, 2026
5Strong evidenceSan Mateo, CA, United StatesHQ checked Sep 19, 202651-20055 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
6Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-20048 contacts →

Partial evidence

“Reduce your carbon footprint with high-quality, nature-based carbon solutions developed by expert foresters, carbon scientists, and land management specialists.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 202611-5047 contacts →

Indirect evidence

“As wildfires destroy more forestland every year, Mast is scaling post-wildfire reforestation in Western North America.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026n/a43 contacts →

Partial evidence

“We remove atmospheric carbon for a fraction of the cost while increasing crop yields.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceHermiston, OR, United StatesHQ checked Sep 19, 202651-20042 contacts →

Partial evidence

“Pacific Ag is North America’s largest and most experienced agricultural residue and forage harvesting and supply company.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 19, 202611-5040 contacts →

Partial evidence

“Powered by nature to achieve impacts far beyond carbon removal.”

Source: RevenueBase Database · checked Sep 19, 2026
11Strong evidenceNew York, United StatesHQ checked Sep 19, 202651-20039 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
12Indirect evidenceChampaign, IL, United StatesHQ checked Sep 19, 202611-5038 contacts →

Indirect evidence

“Robotically planting cover crops - reversing climate change and improving farmers' profits!”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 202611-5034 contacts →

Partial evidence

“A new breed of climate NGO on a mission to reverse two centuries of carbon emissions.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5030 contacts →

Partial evidence

“Restoring the global CO₂ balance by developing a unique marine carbon removal method that delivers optimum scale and quality at an affordable price.”

Source: RevenueBase Database · checked Sep 19, 2026
15Strong evidencePasadena, CA, United StatesHQ checked Sep 19, 202611-5029 contacts →

Strong evidence

“CTrees is a 501(c)(3) nonprofit organization tracking carbon in every living tree on Earth to accelerate natural climate solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceBladen, NE, United StatesHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“Helping people regenerate God's creation for future generations"- this is our mission and our passion.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceHouston, TX, United StatesHQ checked Sep 19, 202611-5025 contacts →

Partial evidence

“We are on a mission to develop and scale groundbreaking technologies that regenerate our soils and sequester atmospheric carbon by the gigaton for the betterment of people and…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceState College, PA, United StatesHQ checked Sep 19, 202651-20024 contacts →

Indirect evidence

“We are dedicated to fostering sustainability through innovative climate solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5022 contacts →

Partial evidence

“Working Trees is mobilizing the next generation of cattle ranching - where productive forests are integrated into pastures, rural communities prosper, and nature and agriculture…”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5022 contacts →

Indirect evidence

“The new nature-positive economy is booming, but it can be hard to navigate the dozens of emerging programs for landowners.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidencePullman, WA, United StatesHQ checked Sep 19, 202611-5019 contacts →

Partial evidence

“We're on a mission to create innovations for agriculture and sustainability!”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceOakland, CA, United StatesHQ checked Sep 19, 202611-5019 contacts →

Partial evidence

“Yard Stick measures soil carbon.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceVinalhaven, ME, United StatesHQ checked Sep 19, 20261-1019 contacts →

Indirect evidence

“During the past 20 years, the Clean Air Action Corporation (CAAC) has funded and managed The International Small Group and Tree Planting Program (TIST).”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceNashville, TN, United StatesHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“AgriCapture helps farmers monetize their sustainable practices.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 24 of 251 agricultural carbon sequestration nonprofits based in the United States

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Agricultural carbon sequestration nonprofits based in the United States at a glance

As of Sep 19, 2026
38.8%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
4.0%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
175
11-50
57
51-200
16
5,001-10,000
1
10001+
1

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 251 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 agricultural carbon sequestration nonprofits, 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 “agricultural carbon sequestration nonprofits”. 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 agricultural carbon sequestration nonprofits), 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 agricultural carbon sequestration nonprofits, 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, 909 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 agricultural carbon sequestration nonprofits, 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 agricultural carbon sequestration nonprofits are there based in the United States?

RevenueBase identified 251 agricultural carbon sequestration nonprofits 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?

Regrow AG, headquartered in Durham, tops this list with the largest team on record.

Which city has the most agricultural carbon sequestration nonprofits?

New York leads with 10 headquartered companies, followed by San Francisco (9) and Washington (8).

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 909 verified decision-maker contacts tracked across these 251 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.

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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.