Company lists · Data refreshed September 2026
Top 25 Telephone co ops organizations based in the United States
RevenueBase identified 577 telephone co ops organizations headquartered in the United States as of September 2026 and tracks 20,575 professional contacts across them, including 7,683 with verified work emails. Springfield is the largest hub.
This list covers telephone co ops organizations 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.
The 25 largest telephone co ops organizations based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,219 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 678 contacts → | ||||
Indirect evidence “NRTC is a member-driven cooperative that provides technology solutions to help more than 1,500 electric and telecom members bring all the advantages of today’s evolving technology…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 677 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 476 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 370 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 278 contacts → | ||||
Indirect evidence “LCEC is a not-for-profit electric distribution cooperative.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 262 contacts → | ||||
Indirect evidence “Middle Tennessee Electric is more than a utility, electric cooperative or public power company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 222 contacts → | ||||
Indirect evidence “Clay Electric is a member-owned, not-for-profit electric distribution cooperative serving members across 15 counties in Florida.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 219 contacts → | ||||
Indirect evidence “Southern Maryland Electric Cooperative was founded in 1937.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 195 contacts → | ||||
Indirect evidence “Brazos Electric is a transmission and distribution cooperative whose members' service territory extends across 68 counties from the Texas Panhandle to Houston.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 194 contacts → | ||||
Indirect evidence “MTA's Mission MTA will be the leading broadband technology company, empowering its member-owners to live a connected life.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 190 contacts → | ||||
Partial evidence “HTC Inc (Horry Telephone Cooperative) is dedicated to improving the quality of life in the areas we serve.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 184 contacts → | ||||
Indirect evidence “GreyStone Power Corporation is a member-owned electric cooperative dedicated to providing our members with the best electric service at the lowest possible rates while serving…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 175 contacts → | ||||
Indirect evidence “FOCUS Broadband is a member-owned cooperative delivering advanced communications services in eastern North Carolina.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 175 contacts → | ||||
Indirect evidence “Established in 1939, Tri-County Electric Cooperative is a distribution electric cooperative that serves more than members across 16 counties in the north Texas region.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 171 contacts → | ||||
Indirect evidence “i3 Broadband is your neighborhood provider of fiber-optic internet, HD TV and voice services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 155 contacts → | ||||
Indirect evidence “Dakota Electric is a member-owned, not-for-profit cooperative that provides safe, reliable, & affordable electricity to its members.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 145 contacts → | ||||
Indirect evidence “Magic Valley Electric Cooperative is the third largest electric cooperatives in Texas and the 22nd largest in the nation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 139 contacts → | ||||
Indirect evidence “United Power is a not-for-profit electric cooperative, owned by the customer-members who receive electricity from us.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 129 contacts → | ||||
Indirect evidence “The idea of connecting others started when a friend didn’t have Internet access at his business.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 126 contacts → | ||||
Indirect evidence “Headquartered in Roosevelt, Utah, Strata Networks is the largest independent telecommunications cooperative in the state of Utah, with over 70 years of experience in the industry…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 126 contacts → | ||||
Indirect evidence “Founded in 1941, Matanuska Electric Association, Inc.(MEA), is Alaska’s oldest existing and second-largest electric cooperative.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 124 contacts → | ||||
Partial evidence “Solarus, formerly known as Wood County Telephone Company, has been a trusted provider of telephone service since 1896.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 123 contacts → | ||||
Partial evidence “S&T was founded as a Cooperative in 1952 to provide much-needed rural telephone service in western Kansas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 123 contacts → | ||||
Indirect evidence “TDS Telecommunications Corp.” Source: RevenueBase Database · checked Sep 16, 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: telephone co ops organizations. 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 telephone co ops organizations.
- Partial evidence
- Its own public description names part of telephone co ops organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name telephone co ops organizations. 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 577 telephone co ops organizations based in the United States
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Telephone co ops organizations based in the United States at a glance
As of Sep 16, 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 577 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 telephone co ops organizations, 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 “telephone co ops organizations”. 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 telephone co ops organizations), 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 telephone co ops organizations, 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, 7,683 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 telephone co ops organizations, 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 telephone co ops organizations are there based in the United States?
RevenueBase identified 577 telephone co ops organizations 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?
NISC, headquartered in Lake Saint Louis, tops this list with the largest team on record.
Which city has the most telephone co ops organizations?
Springfield leads with 4 headquartered companies, followed by Amarillo (3) and Auburn (3).
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 7,683 verified decision-maker contacts tracked across these 577 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.
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