Company lists · Data verified August 2026

Top 25 Carbon neutral software companies based in the United States

Name: Carbon neutral 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 435 companies tracked

There are 435 carbon neutral software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 25,853 professional contacts across them, including 9,717 with verified work emails and 7,592 with mobile numbers. San Francisco is the largest hub.

This list covers carbon neutral 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.

435Companies

25,853Contacts tracked

9,717Verified emails

7,592Mobile numbers

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The 25 largest carbon neutral software companies based in the United States

Ranked by team size

Top 25 of 435 carbon neutral 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	Topsoe	Houston, TX	1,001-5,000	2,614	73
3	Mckinstry	Scottsdale, AZ	1,001-5,000	2,198	1,583
4	GE Digital	San Ramon, CA	1,001-5,000	1,773	624
5	Sphera	Chicago, IL	1,001-5,000	1,345	925
6	Franklin Energy	Port Washington, WI	1,001-5,000	851	484
7	Energy Solutions	Orange, CA	201-500	768	419
8	Watershed	San Francisco, CA	201-500	537	96
9	Dupont Water Solutions	Wilmington, DE	10001+	472	178
10	Enablon	Chicago, IL	501-1,000	438	275
11	PCI Energy Solutions	Norman, OK	201-500	345	156
12	3degrees Group, INC	San Francisco, CA	201-500	325	216
13	Cimarron	Marlow, OK	501-1,000	316	165
14	Cascade Energy	Burlington, VT	201-500	290	194
15	ESG Book	Boston, MA	201-500	212	141
16	Anew Climate	Salt Lake City, UT	201-500	199	145
17	Plateau GRP	Huntsville, AL	51-200	191	3
18	Energy Network	Elkhorn, NE	201-500	157	25
19	Touchstone IQ	Denver, CO	51-200	136	39
20	Synergy Companies	Fresno, CA	501-1,000	124	31
21	RE Tech Advisors	Dallas, TX	51-200	123	104
22	Pulsora	San Mateo, CA	51-200	101	29
23	Summit Energy	Louisville, KY	1,001-5,000	96	19
24	Locus Technologies	Mountain View, CA	51-200	94	42
25	Credibl	Fremont, CA	51-200	76	43

Showing 25 of 435 carbon neutral software companies based in the United States

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Carbon neutral software companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

San FranciscoLargest hub · 27 HQs

7,592Contacts with mobile numbers

45Emails re-verified in last 30 days

Companies by employee count

1-10

229

11-50

132

51-200

201-500

501-1,000

1,001-5,000

10001+

Carbon neutral software companies by metro

Metro	Companies
Carbon neutral software companies in San Francisco	27
Carbon neutral software companies in New York	26
Carbon neutral software companies in Houston	22
Carbon neutral software companies in Denver	13
Carbon neutral software companies in Atlanta	10
Carbon neutral software companies in Seattle	9
Carbon neutral software companies in Austin	8
Carbon neutral software companies in New York City	7

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 “carbon neutral 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; 45 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 carbon neutral software companies are there based in the United States?

There are 435 carbon neutral 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 carbon neutral software companies?

San Francisco leads with 27 headquartered companies, followed by New York (26) and Houston (22).

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 9,717 verified decision-maker contacts tracked across these 435 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.