Company lists · Data verified August 2026

Top 25 Energy audit services based in the United States

Name: Energy audit services 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 636 companies tracked

There are 636 energy audit services headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 5,888 professional contacts across them, including 2,065 with verified work emails and 2,508 with mobile numbers. New York is the largest hub.

This list covers energy audit services 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.

636Companies

5,888Contacts tracked

2,065Verified emails

2,508Mobile numbers

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The 25 largest energy audit services based in the United States

Ranked by team size

Top 25 of 636 energy audit services 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	Cascade Energy	Burlington, VT	201-500	290	194
2	Dalkia Energy Solutions	Beverly, MA	201-500	212	67
3	Bright Power	New York, NY	51-200	200	135
4	Concord Engineering Group, INC	Voorhees, NJ	51-200	135	53
5	Sain Engineering Associates INC	Birmingham, AL	51-200	135	3
6	Synergy Companies	Fresno, CA	501-1,000	124	31
7	Melink Corporation	Milford, OH	51-200	121	66
8	Michaels Energy- An Inc. 5000 Company	La Crosse, WI	51-200	120	7
9	PSD	Ithaca, NY	51-200	114	54
10	Ecosave	New York, NY	51-200	80	53
11	Energy 350, INC	Portland, OR	51-200	60	54
12	Staples Energy	Hayward, CA	51-200	59	19
13	FCI Management	Atlanta, GA	51-200	53	10
14	Energy Source	Westford, MA	51-200	48	37
15	Pedal Valves	Luling, LA	201-500	47	11
16	Modern Heating & AIR Conditioning	Minneapolis, MN	51-200	44	28
17	Brower Mechanical	Rocklin, CA	51-200	44	19
18	Energy Efficient Investments, INC	Williston, VT	51-200	43	31
19	Commercial Green Solutions	Charlotte, NC	51-200	42	31
20	Envinity INC	State College, PA	51-200	42	7
21	Energy Industries Corporation	Honolulu, HI	51-200	39	3
22	15 Lightyears	Longwood, FL	51-200	38	14
23	Solis Lighting & Electrical Services	San Clemente, CA	51-200	38	13
24	Enviros	Hastings, MN	51-200	37	28
25	Zero Energy Contracting	Cerritos, CA	51-200	37	7

Showing 25 of 636 energy audit services based in the United States

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Energy audit services based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 18 HQs

2,508Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

376

11-50

198

51-200

201-500

501-1,000

Energy audit services by metro

Metro	Companies
Energy audit services in New York	18
Energy audit services in Denver	11
Energy audit services in Chicago	11
Energy audit services in Atlanta	10
Energy audit services in San Diego	9
Energy audit services in Portland	7
Energy audit services in Austin	7
Energy audit services in Minneapolis	6

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 audit services”, 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 audit services are there based in the United States?

There are 636 energy audit services headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Cascade Energy, headquartered in Burlington, tops this list with the largest team on record.

Which city has the most energy audit services?

New York leads with 18 headquartered companies, followed by Denver (11) and Chicago (11).

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 2,065 verified decision-maker contacts tracked across these 636 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.