Company lists · Data refreshed September 2026

Top 25 Energy efficiency cooperatives based in the United States

Name: Energy efficiency cooperatives based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 299 companies tracked

RevenueBase identified 299 energy efficiency cooperatives headquartered in the United States as of September 2026 and tracks 3,256 professional contacts across them, including 850 with verified work emails. Austin is the largest hub.

This list covers energy efficiency cooperatives headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

299Companies

3,256Contacts tracked

850Verified emails

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The 25 largest energy efficiency cooperatives based in the United States

Ranked by team size

Top 25 of 299 energy efficiency cooperatives based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency cooperatives: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Lime Energy	Partial evidence	Newark, NJ, United StatesHQ checked Sep 16, 2026	201-500	233 contacts →
	Partial evidence “Lime Energy is building a new energy future.” Source: RevenueBase Database · checked Sep 16, 2026
2	RISE	Strong evidence	Cranston, RI, United StatesHQ checked Sep 16, 2026	201-500	151 contacts →
	Strong evidence “RISE is a pioneer in the delivery of turnkey energy-efficiency services for residential, commercial and industrial facilities.” Source: RevenueBase Database · checked Sep 16, 2026
3	Association For Energy Affordability, INC	Strong evidence	Bronx, NY, United StatesHQ checked Sep 16, 2026	51-200	120 contacts →
	Strong evidence “AEA is a leading nonprofit provider of energy services, an implementer of government and utility energy efficiency programs, and a professional training organization serving the…” Source: RevenueBase Database · checked Sep 16, 2026
4	Electric & GAS Industries Association Egia	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 16, 2026	51-200	79 contacts →
	Indirect evidence “EGIA is a non-profit organization that serves a rapidly growing nationwide network of over installation contractors, regional distributors, product manufacturers and other trade…” Source: RevenueBase Database · checked Sep 16, 2026
5	DEMCO	Strong evidence	Greenwell Springs, LA, United StatesHQ checked Sep 16, 2026	201-500	70 contacts →
	Strong evidence “DEMCO is focused on enhancing the lives of its cooperative members by providing safe, reliable, and competitively priced energy services.” Source: RevenueBase Database · checked Sep 16, 2026
6	Cuivre River Electric Cooperative	Partial evidence	Troy, MO, United StatesHQ checked Sep 16, 2026	51-200	67 contacts →
	Partial evidence “Cuivre River Electric Cooperative (CREC) is headquartered in Troy, Missouri, with a branch office in Lake Saint Louis, Missouri.” Source: RevenueBase Database · checked Sep 16, 2026
7	Utility Energy Services	Partial evidence	Troy, MI, United StatesHQ checked Sep 16, 2026	51-200	66 contacts →
	Partial evidence “UES supports regulated and non-regulated clients in their program implementation efforts to save customers energy and money, transform how customers use energy and support market…” Source: RevenueBase Database · checked Sep 16, 2026
8	Energy Coordinating Agency ECA	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 16, 2026	51-200	64 contacts →
	Strong evidence “The Energy Coordinating Agency (ECA), a non-profit, is a regional leader in the delivery of energy efficiency services for residential stock.” Source: RevenueBase Database · checked Sep 16, 2026
9	Staples Energy	Partial evidence	Pewaukee, WI, United StatesHQ checked Sep 16, 2026	51-200	59 contacts →
	Partial evidence “Staples Energy helps commercial and residential customers, places of worship, and public facilities save hundreds of millions of kilowatt hours of energy.” Source: RevenueBase Database · checked Sep 16, 2026
10	Neeeco	Partial evidence	Wilmington, MA, United StatesHQ checked Sep 16, 2026	51-200	52 contacts →
	Partial evidence “helps Massachusetts residents reduce energy consumption and costs, and increase comfort in their homes.” Source: RevenueBase Database · checked Sep 16, 2026
11	Brower Mechanical	Partial evidence	Rocklin, CA, United StatesHQ checked Sep 16, 2026	51-200	44 contacts →
	Partial evidence “We provide energy solutions for homes and businesses.” Source: RevenueBase Database · checked Sep 16, 2026
12	Commercial Green Solutions	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 16, 2026	51-200	43 contacts →
	Partial evidence “Commercial Green Solutions** is a long-established and respected Energy Consultant dedicated to helping clients: Dramatically reduce energy usage Lower energy spend Improve…” Source: RevenueBase Database · checked Sep 16, 2026
13	Quality Conservation Services	Indirect evidence	Montclair, CA, United StatesHQ checked Sep 16, 2026	201-500	42 contacts →
	Indirect evidence “HVAC, Plumbing, Insulation, Weatherization.” Source: RevenueBase Database · checked Sep 16, 2026
14	For Energy	Strong evidence	Tempe, AZ, United StatesHQ checked Sep 16, 2026	11-50	40 contacts →
	Strong evidence “FOR Energy is committed to being your single source for living a more sustainable and energy-efficient lifestyle.” Source: RevenueBase Database · checked Sep 16, 2026
15	Energy Industries Corporation	Strong evidence	Honolulu, HI, United StatesHQ checked Sep 16, 2026	51-200	39 contacts →
	Strong evidence “Energy Industries Corporation specializes in energy efficiency and renewable energy programs for the commercial, industrial and institutional sectors, primarily focusing on…” Source: RevenueBase Database · checked Sep 16, 2026
16	Energy Solutions Direct	Strong evidence	Clearwater, FL, United StatesHQ checked Sep 16, 2026	11-50	38 contacts →
	Strong evidence “Evaluating immediate and long-term solutions needed to make your home more energy efficient will save you significant money over time.” Source: RevenueBase Database · checked Sep 16, 2026
17	Zero Energy Contracting	Partial evidence	Cerritos, CA, United StatesHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “Saving energy not only saves you money, but it also helps protect our planet's resources for generations to come.” Source: RevenueBase Database · checked Sep 16, 2026
18	Presque Isle Electric & GAS Co-Op	Strong evidence	Onaway, MI, United StatesHQ checked Sep 16, 2026	51-200	33 contacts →
	Strong evidence “Our mission is to provide energy and other services to sustain and improve the quality of life for our members through the use of a cooperative business structure.” Source: RevenueBase Database · checked Sep 16, 2026
19	Dr. Energy Saver	Indirect evidence	Seymour, CT, United StatesHQ checked Sep 16, 2026	11-50	32 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 16, 2026
20	Tri-State Energy	Strong evidence	New Brunswick, NJ, United StatesHQ checked Sep 16, 2026	11-50	31 contacts →
	Strong evidence “Tri-State Energy (formerly Tri-State Light & Energy) is an engineering firm with over 40 years of experience specializing in energy efficiency consulting and implementation…” Source: RevenueBase Database · checked Sep 16, 2026
21	Energy Design Service Systems Edss	Strong evidence	Brighton, MI, United StatesHQ checked Sep 16, 2026	51-200	28 contacts →
	Strong evidence “A woman-owned company, Energy Design Service Systems (EDSS) is a national authority on commercial energy efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
22	Guardian Energy Management Solutions	Strong evidence	Marlborough, MA, United StatesHQ checked Sep 16, 2026	51-200	26 contacts →
	Strong evidence “Guardian Energy Management Solutions provides energy-efficient products and services designed to help contain, lower and control utility expenditures.” Source: RevenueBase Database · checked Sep 16, 2026
23	Allumia	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “Allumia customers get new equipment with zero upfront costs & immediate savings.” Source: RevenueBase Database · checked Sep 16, 2026
24	Efficiency Vermont	Strong evidence	Winooski, VT, United StatesHQ checked Sep 16, 2026	51-200	22 contacts →
	Strong evidence “Efficiency Vermont is here to help your business and home to incorporate practical, energy-saving upgrades that will benefit you right away.” Source: RevenueBase Database · checked Sep 16, 2026
25	Optima Energy, INC	Indirect evidence	Artesia, CA, United StatesHQ checked Sep 16, 2026	51-200	22 contacts →
	Indirect evidence “We help multifamily and commercial owners complete millions of dollars in building improvements while minimizing capital expenditures through incentives.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy efficiency cooperatives. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy efficiency cooperatives.
Partial evidence: Its own public description names part of energy efficiency cooperatives, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficiency cooperatives. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 299 energy efficiency cooperatives based in the United States

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Energy efficiency cooperatives based in the United States at a glance

As of Sep 16, 2026

26.1%Verified-email coverage

10.9Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Austin

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

115

51-200

201-500

501-1,000

10001+

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 299 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy efficiency cooperatives, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “energy efficiency cooperatives”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy efficiency cooperatives), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among energy efficiency cooperatives, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 850 across the full list. 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 September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy efficiency cooperatives, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 299 energy efficiency cooperatives headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Lime Energy, headquartered in Newark, tops this list with the largest team on record.

Which city has the most energy efficiency cooperatives?

Austin leads with 5 headquartered companies, followed by Denver (5) and Troy (4).

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 850 verified decision-maker contacts tracked across these 299 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.