Company lists · Data verified August 2026

Top 25 Energy efficiency software companies based in the United States

Name: Energy efficiency 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 1,017 companies tracked

There are 1,017 energy efficiency software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 21,033 professional contacts across them, including 8,502 with verified work emails and 8,265 with mobile numbers. New York is the largest hub.

This list covers energy efficiency 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.

1,017Companies

21,033Contacts tracked

8,502Verified emails

8,265Mobile numbers

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

Ranked by team size

Top 25 of 1,017 energy efficiency 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	GE Digital	San Ramon, CA	1,001-5,000	1,773	624
2	Arcadia	Washington, DC	501-1,000	869	191
3	Climatec, LLC	Phoenix, AZ	1,001-5,000	865	544
4	Albireo Energy	New York	1,001-5,000	685	382
5	Palmetto	Charlotte, NC	201-500	533	208
6	Budderfly	Shelton, CT	201-500	359	282
7	PCI Energy Solutions	Norman, OK	201-500	345	156
8	Cascade Energy	Burlington, VT	201-500	290	194
9	Electro Industries Gaugetech	Westbury, NY	201-500	242	60
10	Mantis Innovation	Waco, TX	201-500	231	183
11	HOC INC	New York, NY	51-200	217	39
12	Dalkia Energy Solutions	Beverly, MA	201-500	212	67
13	Energy Management Collaborative EMC	Minneapolis, MN	201-500	197	132
14	Clean Power Research	Napa, CA	51-200	130	94
15	Synergy Companies	Fresno, CA	501-1,000	124	31
16	Melink Corporation	Milford, OH	51-200	121	66
17	Michaels Energy- An Inc. 5000 Company	La Crosse, WI	51-200	120	7
18	PSD	Ithaca, NY	51-200	114	54
19	Clockworks Analytics	Boston, MA	51-200	106	87
20	Resource Data Management	New Hope, MN	51-200	87	43
21	Nexrev	Philadelphia, PA	201-500	87	40
22	Optimum Energy	Baton Rouge, LA	51-200	86	51
23	NODA	Washington Dc, DC	51-200	82	36
24	ABM Systems, INC	Floral Park, NY	51-200	80	43
25	PC Automated Controls, INC	El Paso, TX	51-200	75	25

Showing 25 of 1,017 energy efficiency software companies based in the United States

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Energy efficiency software companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 39 HQs

8,265Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

445

11-50

392

51-200

130

201-500

501-1,000

1,001-5,000

10001+

Energy efficiency software companies by metro

Metro	Companies
Energy efficiency software companies in New York	39
Energy efficiency software companies in Houston	25
Energy efficiency software companies in San Francisco	22
Energy efficiency software companies in Chicago	19
Energy efficiency software companies in Denver	16
Energy efficiency software companies in San Diego	15
Energy efficiency software companies in Portland	15
Energy efficiency software companies in Dallas	11

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 “energy efficiency 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; 0 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 energy efficiency software companies are there based in the United States?

There are 1,017 energy efficiency software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

GE Digital, headquartered in San Ramon, tops this list with the largest team on record.

Which city has the most energy efficiency software companies?

New York leads with 39 headquartered companies, followed by Houston (25) and San Francisco (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 8,502 verified decision-maker contacts tracked across these 1,017 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.