Company lists · Data refreshed October 2026

Top 25 Building energy auditing firms based in the United States

RevenueBase identified 886 company matches for building energy auditing firms associated with the United States as of October 2026 and tracks 11,131 professional contacts across them, including 4,477 with verified work emails. New York is the largest hub.

This list covers company matches for building energy auditing firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built
886Companies
11,131Contacts tracked
4,477Verified emails
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The 25 largest building energy auditing firms based in the United States

Ranked by team size
Top 25 of 886 company matches for building energy auditing firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAustin, TX, United StatesHQ recorded Oct 9, 20261,001-5,0002,206 contacts →

Exact match

“CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Oct 9, 2026501-1,000392 contacts →

Exact match

“ARCXIS (Formerly DPIS Builder Services), is the largest provider of HERS inspections, ENERGY STAR ratings, engineering and design, construction quality assurance and other builder…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchPortland, OR, United StatesHQ recorded Oct 9, 2026201-500301 contacts →

Exact match

“At Cascade Energy, we believe in better.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchFairfax, VA, United StatesHQ recorded Oct 9, 2026201-500216 contacts →

Exact match

“PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchBeverly, MA, United StatesHQ recorded Oct 9, 2026201-500213 contacts →

Exact match

“Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Oct 9, 202651-200201 contacts →

Exact match

“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchVoorhees, NJ, United StatesHQ recorded Oct 9, 202651-200148 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchBirmingham, AL, United StatesHQ recorded Oct 9, 202651-200138 contacts →

Exact match

“Sain Engineering Associates, Inc.(SEA) is a U.S.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchMilford, OH, United StatesHQ recorded Oct 9, 202651-200131 contacts →

Exact match

“We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchFresno, CA, United StatesHQ recorded Oct 9, 2026501-1,000129 contacts →

Exact match

“Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchLa Crosse, WI, United StatesHQ recorded Oct 9, 202651-200123 contacts →

Exact match

“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12Exact matchIthaca, NY, United StatesHQ recorded Oct 9, 202651-200117 contacts →

Exact match

“PSD is an energy efficiency services and technology company.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchPhoenix, AZ, United StatesHQ recorded Oct 9, 202651-200117 contacts →

Exact match

“Erus Energy helps building owners evaluate and finance investments in Solar Energy and other energy saving equipment.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchGrapevine, TX, United StatesHQ recorded Oct 9, 202651-200113 contacts →

Exact match

“Ideal Impact was founded March 2, 2009 with a well-defined mission and strategy: to use our world-renowned expertise to generate $10 billion for education and ministries.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Oct 9, 20261,001-5,00089 contacts →

Exact match

“Register Your Interest: https://navigatepower.pinpointhq.com/register-your-interest/new Navigate Power is a leading electricity and natural gas consulting firm, headquartered in…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchSeattle, WA, United StatesHQ recorded Oct 9, 202651-20084 contacts →

Exact match

“With 20 years of experience and 300+ plants and institutions served globally, nobody understands energy infrastructure, efficiency, and financial opportunity quite like Optimum…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 9, 202651-20083 contacts →

Exact match

“Headquartered in Philadelphia, Ecosave is a leading global independent Energy-as-a-Service provider, offering free energy savings assessments, guaranteed savings, fixed price…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchConcord, MA, United StatesHQ recorded Oct 9, 202611-5072 contacts →

Exact match

“Abode Energy Management is an energy consulting firm driving efficiency improvements for New England’s built environment.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchEl Paso, TX, United StatesHQ recorded Oct 9, 202651-20070 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchPortland, OR, United StatesHQ recorded Oct 9, 202651-20064 contacts →

Exact match

“Energy 350 takes pride in performing high quality energy studies and energy efficiency related services for end users as well as program administrators.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchLittle Rock, AR, United StatesHQ recorded Oct 9, 202651-20061 contacts →

Exact match

“Entegrity is an energy services, sustainability and solar development company specializing in the implementation of energy conservation and renewable energy projects.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchLos Angeles, CA, United StatesHQ recorded Oct 9, 202651-20057 contacts →

Exact match

“Partner Energy, Inc.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchJacksonville, FL, United StatesHQ recorded Oct 9, 202651-20056 contacts →

Exact match

“SkyeTec is an award winning energy rating and indoor environmental consulting company that provides third-party inspections for residential and commercial construction projects.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchPewaukee, WI, United StatesHQ recorded Oct 9, 202651-20056 contacts →

Exact match

“Staples Energy helps commercial and residential customers, places of worship, and public facilities save hundreds of millions of kilowatt hours of energy.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchExton, PA, United StatesHQ recorded Oct 9, 202651-20054 contacts →

Exact match

“With over 40 years of experience, Energy Management Systems is one of the premier providers of Energy and Efficiency solutions to the Commercial and Residential Real Estate…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 886 building energy auditing firms based in the United States

See the full list, filter by size, metro and specialty, and access 4,477 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building energy auditing firms based in the United States at a glance

As of Oct 9, 2026
40.2%Verified-email coverage
12.6Average contacts per company
1-10Median size (employees)
3.4%Largest-city concentration · New York
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
496
11-50
302
51-200
67
201-500
14
501-1,000
5
1,001-5,000
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 886 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “building energy auditing firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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
Every displayed company carries at least one verified work email. RevenueBase tracks 4,477 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Building energy auditing firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “building energy auditing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building energy auditing firms are there based in the United States?

RevenueBase identified 886 company matches for building energy auditing firms associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Clearesult tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most building energy auditing firms?

New York leads with 30 company records, followed by Houston (16) and Austin (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,477 professional contacts with verified work emails tracked across these 886 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.