Company lists · Data verified August 2026

Top 25 Climate tech software companies based in the United States

Name: Climate tech software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 548 companies tracked

There are 548 climate tech software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 18,610 professional contacts across them, including 7,003 with verified work emails and 5,374 with mobile numbers. New York is the largest hub.

This list covers climate tech software 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. Data current as of August 28, 2026.

548Companies

18,610Contacts tracked

7,003Verified emails

5,374Mobile numbers

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The 25 largest climate tech software companies based in the United States

Ranked by team size

Top 25 of 548 climate tech software companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Carrier	Palm Beach Gardens, FL	10001+	7,703	2,365
2	GE Digital	San Ramon, CA	1,001-5,000	1,773	624
3	Nextracker INC	Fremont, CA	501-1,000	935	601
4	Watershed	San Francisco, CA	201-500	537	96
5	Palmetto	Charlotte, NC	201-500	533	208
6	3degrees Group, INC	San Francisco, CA	201-500	325	216
7	Cimarron	Marlow, OK	501-1,000	316	165
8	Opus Inspection Technologies	Brookfield, WI	201-500	264	42
9	Anew Climate	Salt Lake City, UT	201-500	199	145
10	Plateau GRP	Huntsville, AL	51-200	191	3
11	Carbon Direct	New York City	51-200	171	117
12	Gridbeyond	Houston, TX	51-200	160	96
13	Cleanchoice Energy	Washington, DC	51-200	154	68
14	Touchstone IQ	Denver, CO	51-200	136	39
15	Phononic INC	Durham, NC	51-200	108	43
16	Pulsora	San Mateo, CA	51-200	101	29
17	Greentown Labs	Somerville, MA	51-200	96	37
18	Locus Technologies	Mountain View, CA	51-200	94	42
19	Climeco	Houston, TX	51-200	93	58
20	Infinium	Sacramento, CA	51-200	78	49
21	Credibl	Fremont, CA	51-200	76	43
22	Wellstat	New York, NY	51-200	75	60
23	Heliogen	Pasadena, CA	51-200	74	55
24	Riverside Technology, INC	Fairfax, VA	201-500	74	2
25	Caely Renewables	Houston, TX	51-200	73	45

Showing 25 of 548 climate tech software companies based in the United States

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Climate tech software companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 43 HQs

5,374Contacts with mobile numbers

53Emails re-verified in last 30 days

Companies by employee count

1-10

325

11-50

161

51-200

201-500

501-1,000

1,001-5,000

10001+

Climate tech software companies by metro

Metro	Companies
Climate tech software companies in New York	43
Climate tech software companies in San Francisco	37
Climate tech software companies in Houston	30
Climate tech software companies in Boulder	13
Climate tech software companies in Seattle	12
Climate tech software companies in Austin	12
Climate tech software companies in Chicago	8
Climate tech software companies in Denver	8

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “climate tech software companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 53 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many climate tech software companies are there based in the United States?

There are 548 climate tech software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Carrier, headquartered in Palm Beach Gardens, tops this list with the largest team on record.

Which city has the most climate tech software companies?

New York leads with 43 headquartered companies, followed by San Francisco (37) and Houston (30).

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 7,003 verified decision-maker contacts tracked across these 548 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.