Company lists · Data verified August 2026

Top 25 Clean energy software companies based in the United States

Name: Clean energy 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 1,567 companies tracked

There are 1,567 clean energy software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 48,939 professional contacts across them, including 16,264 with verified work emails and 17,477 with mobile numbers. Houston is the largest hub.

This list covers clean energy 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.

1,567Companies

48,939Contacts tracked

16,264Verified emails

17,477Mobile numbers

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The 25 largest clean energy software companies based in the United States

Ranked by team size

Top 25 of 1,567 clean energy 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	Constellation	Baltimore, MD	10001+	9,461	4,287
2	Envision Energy	Houston, TX	1,001-5,000	1,945	3
3	Fluence	Mountain View, CA	1,001-5,000	1,842	1,131
4	GE Digital	San Ramon, CA	1,001-5,000	1,773	624
5	Goodleap	Roseville, CA	501-1,000	1,127	881
6	Clarke Energy	Waukesha	1,001-5,000	1,044	550
7	Sunnova Energy	Houston, TX	501-1,000	940	51
8	Depcom Power, INC	Bedminster, NJ	1,001-5,000	623	273
9	Palmetto	Charlotte, NC	201-500	533	208
10	Uplight	Boulder, CO	501-1,000	484	287
11	V3 Electric, INC	Rancho Cucamonga, CA	201-500	369	71
12	Supernova	Denver, CO	201-500	366	29
13	Budderfly	Shelton, CT	201-500	359	282
14	PCI Energy Solutions	Norman, OK	201-500	345	156
15	AMSC	Ayer, MA	201-500	333	119
16	Meraki Solar	Dallas, TX	1,001-5,000	274	8
17	Baywa R.E. Americas	Santa Fe, NM	201-500	264	170
18	Skyspecs	Ann Arbor, MI	201-500	262	146
19	Infinity Energy INC	Rocklin, CA	201-500	259	25
20	Powerflex	Mountain View, CA	201-500	249	155
21	Boundless, INC	Marlborough, MA	201-500	227	61
22	Lunar Energy	Mountain View, CA	201-500	223	166
23	Origis Energy	Miami, FL	201-500	218	152
24	Motive Energy	San Antonio, TX	201-500	204	54
25	Green World Renewable Energy LLC	Baltimore, MD	201-500	180	5

Showing 25 of 1,567 clean energy software companies based in the United States

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Clean energy software companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

HoustonLargest hub · 58 HQs

17,477Contacts with mobile numbers

77Emails re-verified in last 30 days

Companies by employee count

1-10

670

11-50

562

51-200

232

201-500

501-1,000

1,001-5,000

10001+

Clean energy software companies by metro

Metro	Companies
Clean energy software companies in Houston	58
Clean energy software companies in New York	46
Clean energy software companies in San Francisco	40
Clean energy software companies in Austin	35
Clean energy software companies in San Diego	28
Clean energy software companies in Denver	24
Clean energy software companies in Boston	24

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 “clean energy 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; 77 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 clean energy software companies are there based in the United States?

There are 1,567 clean energy software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Constellation, headquartered in Baltimore, tops this list with the largest team on record.

Which city has the most clean energy software companies?

Houston leads with 58 headquartered companies, followed by New York (46) and San Francisco (40).

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 16,264 verified decision-maker contacts tracked across these 1,567 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.