Company lists · Data refreshed September 2026
Top 25 Utility cooperatives based in the United States
RevenueBase identified 1,005 utility cooperatives headquartered in the United States as of September 2026 and tracks 40,830 professional contacts across them, including 17,035 with verified work emails. Greenwood is the largest hub.
This list covers utility 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 22, 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.
The 25 largest utility cooperatives based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,675 contacts → | ||||
Partial evidence “Colorado Springs Utilities is the largest community-owned, not-for-profit, four-service utility in the nation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,219 contacts → | ||||
Partial evidence “National Information Solutions Cooperative (NISC) is an information technology organization that develops, implements and supports software and hardware solutions for our Members.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 979 contacts → | ||||
Indirect evidence “OUR MISSION We provide wholesale energy and services to our member-owners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 892 contacts → | ||||
Partial evidence “85 Years: United in Service Associated Food Stores, Inc, headquartered in Salt Lake City, Utah, is a cooperatively owned wholesale distributor to almost 500 independently owned…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 677 contacts → | ||||
Partial evidence “Based in Johnson City, Texas, Pedernales Electric Cooperative (PEC) is the largest distribution electric cooperative in the U.S.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 656 contacts → | ||||
Partial evidence “Knoxville Utilities Board is one of the largest public utilities in the country providing safe, reliable, and affordable electric, natural gas, water, wastewater, and fiber…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 590 contacts → | ||||
Partial evidence “City Utilities of Springfield (CU) is a progressive, community-owned utility serving southwest Missouri with electricity, natural gas, water, broadband and transit services.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 587 contacts → | ||||
Partial evidence “Gainesville Regional Utilities (GRU) is a multi-service utility owned by the City of Gainesville and is the 5th largest municipal electric utility in Florida.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 566 contacts → | ||||
Indirect evidence “Topco was formed to help ensure regional grocery retailers and wholesalers the ability to support their communities by providing families with high quality yet affordable products…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 476 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 472 contacts → | ||||
Partial evidence “Providing safe, reliable, sustainable and affordable electricity for its cooperative members is the goal of Dairyland Power Cooperative.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 406 contacts → | ||||
Partial evidence “Founded in 1911, we are Oregon's largest customer-owned utility.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 384 contacts → | ||||
Partial evidence “Seminole Electric Cooperative is one of the largest generation and transmission (G&T) cooperatives in the country.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 373 contacts → | ||||
Strong evidence “Supporting America’s Electric Cooperatives and the Members They Serve * The National Rural Utilities Cooperative Finance Corporation (CFC) is a member-owned, nonprofit finance…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 370 contacts → | ||||
Partial evidence “Georgia Transmission is a not-for-profit electric cooperative that plans, builds and maintains more than miles of high-voltage power lines and more than 780 substations for 38…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 368 contacts → | ||||
Partial evidence “Arkansas Electric Cooperative Corporation (AECC) is a generation and transmission cooperative headquartered in Little Rock, Arkansas.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 344 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 342 contacts → | ||||
Indirect evidence “At Sunflower, we need bright and talented employees to build, operate, and maintain our power plants, transmission lines, and substations and manage every other function of our…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 324 contacts → | ||||
Partial evidence “Conexon works with Rural Electric Cooperatives to bring fiber to the home to rural areas and communities.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 321 contacts → | ||||
Partial evidence “Cobb EMC is a not-for-profit electric cooperative located in metro Atlanta.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 320 contacts → | ||||
Partial evidence “NOVEC is a not-for-profit electric cooperative that supplies and distributes electricity and energy-related services to more than metered customers in Fairfax, Fauquier, Loudoun…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 317 contacts → | ||||
Partial evidence “Oglethorpe Power is among the nation’s largest power supply cooperatives and is one of the largest energy producers in Georgia.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 299 contacts → | ||||
Partial evidence “Platte River Power Authority is a not-for-profit, community-owned public power utility that generates and delivers safe, reliable, environmentally responsible and financially…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 288 contacts → | ||||
Partial evidence “Big Rivers Electric Corporation is a member-owned, not-for-profit, generation and transmission cooperative (G&T).” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 279 contacts → | ||||
Partial evidence “Lakeland Electric is a full service municipal utility servicing over customers with some of the most economically priced electricity in the state of Florida.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: utility 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 utility cooperatives.
- Partial evidence
- Its own public description names part of utility cooperatives, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name utility 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 1,005 utility cooperatives based in the United States
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Utility cooperatives based in the United States at a glance
As of Sep 22, 2026Companies by employee count
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 1,005 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 utility 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 “utility 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 utility 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 utility 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, 17,035 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 22, 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 utility 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 utility cooperatives are there based in the United States?
RevenueBase identified 1,005 utility 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?
Colorado Springs Utilities, headquartered in Colorado Springs, tops this list with the largest team on record.
Which city has the most utility cooperatives?
Greenwood leads with 5 headquartered companies, followed by Marion (5) and Pembroke (5).
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 17,035 verified decision-maker contacts tracked across these 1,005 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 22, 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.