Company lists · Data refreshed October 2026

Top 25 Municipal energy efficiency companies based in the United States

RevenueBase identified 643 company matches for municipal energy efficiency companies associated with the United States as of October 2026 and tracks 10,730 professional contacts across them, including 4,402 with verified work emails. New York is the largest hub.

This list covers company matches for municipal energy efficiency companies 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 18, 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 18, 2026 How this list was built
643Companies
10,730Contacts tracked
4,402Verified emails
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The 25 largest municipal energy efficiency companies based in the United States

Ranked by team size
Top 25 of 643 company matches for municipal energy efficiency companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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 18, 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 18, 2026 · View company records in RevenueBase
2Exact matchPortland, OR, United StatesHQ recorded Oct 18, 2026201-500301 contacts →

Exact match

“At Cascade Energy, we believe in better.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchFort Washington, PA, United StatesHQ recorded Oct 18, 2026201-500261 contacts →

Exact match

“CMC Energy Services is a woman-owned full-service energy efficiency company with nearly 50 years of experience delivering value-based energy conservation services.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4Exact matchDetroit, MI, United StatesHQ recorded Oct 18, 202651-200222 contacts →

Exact match

“Walker-Miller Energy Services (Walker-Miller), one of the largest African American and woman owned energy efficiency companies in the United States, changes lives through energy.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchFairfax, VA, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
6Exact matchBeverly, MA, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
7Exact matchMinneapolis, MN, United StatesHQ recorded Oct 18, 2026201-500207 contacts →

Exact match

“EMC manages and scales turnkey energy efficiency solutions for Fortune 500 clients across their North American portfolios.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchFernandina Beach, FL, United StatesHQ recorded Oct 18, 2026201-500181 contacts →

Exact match

“Florida Public Utilities (FPU) has been providing energy to homes and businesses throughout Florida for over 90 years.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchVoorhees, NJ, United StatesHQ recorded Oct 18, 202651-200148 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchCranston, RI, United StatesHQ recorded Oct 18, 2026201-500147 contacts →

Exact match

“RISE is a pioneer in the delivery of turnkey energy-efficiency services for residential, commercial and industrial facilities.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchFresno, CA, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
12Exact matchLa Crosse, WI, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
13Exact matchHouston, LA, United StatesHQ recorded Oct 18, 2026201-500115 contacts →

Exact match

“CenTrio Energy is the leader in providing innovative energy solutions for our clients.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchOakland, CA, United StatesHQ recorded Oct 18, 202651-200101 contacts →

Exact match

“In 1998, I started kW Engineering as a two-person firm with a singular vision: to become the leading technical experts at saving money in buildings by saving energy and water.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchVancouver, WA, United StatesHQ recorded Oct 18, 202651-20095 contacts →

Exact match

“Pacific Energy Concepts™ (PEC) is North America’s most innovative energy optimization company.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchSeattle, WA, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
17Exact matchCharleston, SC, United StatesHQ recorded Oct 18, 2026501-1,00084 contacts →

Exact match

“AM Conservation delivers intelligent energy management products and solutions for communities, businesses, and the planet.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchBaltimore, MD, United StatesHQ recorded Oct 18, 202611-5078 contacts →

Exact match

“Since 2010, MD Energy Advisors (MDEA) has been infusing art into energy by creating a dynamic customer experience that makes energy choices simple for everyone.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchEl Paso, TX, United StatesHQ recorded Oct 18, 202651-20070 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchBirmingham, AL, United StatesHQ recorded Oct 18, 2026n/a70 contacts →

Exact match

“If your business is interested in cutting energy costs and securing little known incentives to help fund initial project costs, SEMCO can help you.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchPortland, OR, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
22Exact matchLittle Rock, AR, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase
23Exact matchPittsburgh, PA, United StatesHQ recorded Oct 18, 202611-5061 contacts →

Exact match

“TEN is an independent energy services company that provides energy projects to government, K12, higher education, healthcare, and large commercial customers.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchLos Angeles, CA, United StatesHQ recorded Oct 18, 202651-20057 contacts →

Exact match

“Partner Energy, Inc.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchPewaukee, WI, United StatesHQ recorded Oct 18, 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 18, 2026 · View company records in RevenueBase

Showing 25 of 643 municipal energy efficiency companies based in the United States

See the full list, filter by size, metro and specialty, and access 4,402 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Municipal energy efficiency companies based in the United States at a glance

As of Oct 18, 2026
41.0%Verified-email coverage
16.7Average contacts per company
11-50Median size (employees)
4.4%Largest-city concentration · New York
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
306
11-50
245
51-200
62
201-500
22
501-1,000
5
1,001-5,000
1
10001+
1

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 643 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 “municipal energy efficiency companies” 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 4,402 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 18, 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.

Municipal energy efficiency companies 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 “municipal energy efficiency companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal energy efficiency companies are there based in the United States?

RevenueBase identified 643 company matches for municipal energy efficiency companies 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 municipal energy efficiency companies?

New York leads with 28 company records, followed by Chicago (11) and Dallas (11).

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 4,402 professional contacts with verified work emails tracked across these 643 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 18, 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.