Company lists · Data refreshed September 2026

Top 25 Geoengineering companies based in the United States

Name: Geoengineering 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 30, 2026 579 companies tracked

RevenueBase identified 579 geoengineering companies headquartered in the United States as of September 2026 and tracks 12,425 professional contacts across them, including 7,087 with verified work emails. Houston is the largest hub.

This list covers geoengineering 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 30, 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 30, 2026 86% judged on-target in blind review

579Companies

12,425Contacts tracked

7,087Verified emails

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The 25 largest geoengineering companies based in the United States

Ranked by team size

Top 25 of 579 geoengineering companies based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to geoengineering 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	Mckinstry	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 30, 2026	1,001-5,000	2,213 contacts →
	Indirect evidence “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Source: RevenueBase Database · checked Sep 30, 2026
2	California Resources Corporation	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,095 contacts →
	Indirect evidence “California Resources Corporation (CRC) is an independent energy and carbon management company committed to energy transition.” Source: RevenueBase Database · checked Sep 30, 2026
3	Energy Solutions	Indirect evidence	Oakland, CA, United StatesHQ checked Sep 30, 2026	201-500	772 contacts →
	Indirect evidence “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Source: RevenueBase Database · checked Sep 30, 2026
4	Shimmick Corporation	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	760 contacts →
	Indirect evidence “At Shimmick (NASDAQ: SHIM), we’re shaping the future of sustainable infrastructure through innovative solutions that advance communities and protect our environment.” Source: RevenueBase Database · checked Sep 30, 2026
5	Veregy	Indirect evidence	Phoenix, MO, United StatesHQ checked Sep 30, 2026	501-1,000	383 contacts →
	Indirect evidence “Veregy is an award-winning NAESCO-Accredited decarbonization company focusing on accelerating and simplifying the Energy Transition.” Source: RevenueBase Database · checked Sep 30, 2026
6	3degrees Group, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 30, 2026	201-500	324 contacts →
	Indirect evidence “3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Source: RevenueBase Database · checked Sep 30, 2026
7	Energy Recovery, INC	Indirect evidence	San Leandro, CA, United StatesHQ checked Sep 30, 2026	201-500	219 contacts →
	Indirect evidence “Energy Recovery (Nasdaq: ERII) designs and manufactures world-class energy-saving technology for critical infrastructure that communities rely on every day, driving a more…” Source: RevenueBase Database · checked Sep 30, 2026
8	Aeroseal	Indirect evidence	Miamisburg, OH, United StatesHQ checked Sep 30, 2026	51-200	215 contacts →
	Indirect evidence “Aeroseal is a climate tech company on a mission - reduce the world's carbon emissions by 1 gigaton annually.” Source: RevenueBase Database · checked Sep 30, 2026
9	Anew Climate	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	201-500	200 contacts →
	Indirect 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 30, 2026
10	VMC Group	Indirect evidence	Bloomingdale, NJ, United StatesHQ checked Sep 30, 2026	51-200	187 contacts →
	Indirect evidence “We design & build solutions that allow customers to better manage the negative environmental effects of air, noise, seismic, vibration, & shock.” Source: RevenueBase Database · checked Sep 30, 2026
11	Carbon Direct	Indirect evidence	New York, United StatesHQ checked Sep 30, 2026	51-200	172 contacts →
	Indirect 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 30, 2026
12	Greenrise Technologies	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 30, 2026	501-1,000	135 contacts →
	Indirect evidence “Stormwater Solutions That Work.” Source: RevenueBase Database · checked Sep 30, 2026
13	Geotechnical Consultants, INC	Indirect evidence	Westerville, OH, United StatesHQ checked Sep 30, 2026	51-200	133 contacts →
	Indirect evidence “Geotechnical Consultants, Inc.(GCI) is a professional geo-engineering firm headquartered in greater Columbus, Ohio.” Source: RevenueBase Database · checked Sep 30, 2026
14	Sublime Systems	Indirect evidence	Somerville, MA, United StatesHQ checked Sep 30, 2026	51-200	131 contacts →
	Indirect evidence “Sublime Systems is leading a swift and massive transition to a clean cement manufacturing future.” Source: RevenueBase Database · checked Sep 30, 2026
15	Heirloom	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 30, 2026	51-200	111 contacts →
	Indirect 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 30, 2026
16	GTE	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 30, 2026	51-200	111 contacts →
	Indirect evidence “Power Generation Manufacturing and Engineering.” Source: RevenueBase Database · checked Sep 30, 2026
17	Blade Energy Partners	Indirect evidence	Frisco, TX, United StatesHQ checked Sep 30, 2026	51-200	103 contacts →
	Indirect evidence “Founded in Blade Energy Partners is an independent consulting company known for overcoming the challenges of complex multidisciplinary projects in the oil, gas, and geothermal…” Source: RevenueBase Database · checked Sep 30, 2026
18	Fortera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	51-200	96 contacts →
	Indirect evidence “Fortera is a pioneering green cement manufacturer with production in Redding, California.” Source: RevenueBase Database · checked Sep 30, 2026
19	Syzygy Plasmonics	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	11-50	80 contacts →
	Indirect evidence “Syzygy Plasmonics is a technology company decarbonizing chemical production with its proprietary light-driven reactor technology.” Source: RevenueBase Database · checked Sep 30, 2026
20	Insight Environmental, INC	Indirect evidence	Spring, TX, United StatesHQ checked Sep 30, 2026	51-200	80 contacts →
	Indirect evidence “Insight Environmental is an environmental consulting firm founded on education, experience, and expertise.” Source: RevenueBase Database · checked Sep 30, 2026
21	Insight M, A Zeitview Company	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 30, 2026	51-200	80 contacts →
	Indirect evidence “Founded in 2014, Insight M is a consultative methane emissions management company driven by our unwavering commitment to scientific rigor and overall customer success.” Source: RevenueBase Database · checked Sep 30, 2026
22	Infinium	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 30, 2026	51-200	79 contacts →
	Indirect evidence “Infinium is reimagining how the world powers, moves, and computes.” Source: RevenueBase Database · checked Sep 30, 2026
23	Tradewater	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	73 contacts →
	Indirect evidence “A certified B Corp, Tradewater directly combats climate change by identifying, collecting, and eliminating the release of non-CO₂ superpollutants, including refrigerants in old…” Source: RevenueBase Database · checked Sep 30, 2026
24	Cdti Advanced Materials, INC	Indirect evidence	Oxnard, CA, United StatesHQ checked Sep 30, 2026	11-50	70 contacts →
	Indirect evidence “CDTi Advanced Materials is a catalyst engineering and coating technology company serving emissions control, power generation, industrial, methane abatement, and carbon capture…” Source: RevenueBase Database · checked Sep 30, 2026
25	Mati Carbon	Indirect evidence	Houston, United StatesHQ checked Sep 30, 2026	11-50	70 contacts →
	Indirect 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 30, 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: geoengineering 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 geoengineering companies.
Partial evidence: Its own public description names part of geoengineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geoengineering 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 579 geoengineering companies based in the United States

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Geoengineering companies based in the United States at a glance

As of Sep 30, 2026

57.0%Verified-email coverage

21.5Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

339

11-50

167

51-200

201-500

501-1,000

1,001-5,000

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 579 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 geoengineering 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 “geoengineering 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 geoengineering 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 geoengineering 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, 7,087 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 30, 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.

Geoengineering companies by metro

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 geoengineering 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 geoengineering companies are there based in the United States?

RevenueBase identified 579 geoengineering 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?

Mckinstry, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most geoengineering companies?

Houston leads with 36 headquartered companies, followed by New York (33) and San Francisco (18).

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 7,087 verified decision-maker contacts tracked across these 579 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 30, 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.