Company lists · Data refreshed September 2026

Top 22 Utility scale power generation based in the United States

RevenueBase identified 45 utility scale power generation headquartered in the United States as of September 2026 and tracks 21,607 professional contacts across them, including 6,803 with verified work emails. Houston is the largest hub.

This list covers utility scale power generation 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
45Companies
21,607Contacts tracked
6,803Verified emails
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The 22 largest utility scale power generation based in the United States

Ranked by team size
Top 22 of 45 utility scale power generation based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to utility scale power generation: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 22, 202610001+5,036 contacts →

Indirect evidence

“High reliability, low prices and high customer satisfaction are cornerstones of our customer commitment, but it doesn't end there.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceJuno Beach, FL, United StatesHQ checked Sep 22, 202610001+3,478 contacts →

Partial evidence

“NextEra Energy, Inc.(NYSE: NEE) is one of the largest electric power and energy infrastructure companies in North America and is a leading provider of electricity to American…”

Source: RevenueBase Database · checked Sep 22, 2026
3Strong evidenceIrving, TX, United StatesHQ checked Sep 22, 20265,001-10,0002,466 contacts →

Strong evidence

“Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company, based in Irving, Texas, that provides essential resources to customers…”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 22, 20261,001-5,0002,112 contacts →

Indirect evidence

“A business unit of Constellation (NASDAQ: CEG), Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with operations in…”

Source: RevenueBase Database · checked Sep 22, 2026
5Partial evidenceMoncks Corner, SC, United StatesHQ checked Sep 22, 20261,001-5,0001,393 contacts →

Partial evidence

“Santee Cooper is South Carolina’s largest power producer, the largest Green Power generator and the ultimate source of electricity for 2 million people across the state.”

Source: RevenueBase Database · checked Sep 22, 2026
6Strong evidenceRichland, WA, United StatesHQ checked Sep 22, 2026501-1,0001,067 contacts →

Strong evidence

“Energy Northwest produces reliable, affordable, environmentally responsible electric power and delivers it to Northwest public power utilities at the cost of production.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceHouston, TX, United StatesHQ checked Sep 22, 20261,001-5,000448 contacts →

Indirect evidence

“GenOn Energy, Inc.(NYSE: GEN) is one of the largest competitive generators of wholesale electricity in the United States.”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceSalt Lake City, UT, United StatesHQ checked Sep 22, 20265,001-10,000390 contacts →

Partial evidence

“At Rocky Mountain Power we believe in our promise of public service: an obligation to deliver safe, reliable electricity at an affordable price in an environmentally sustainable…”

Source: RevenueBase Database · checked Sep 22, 2026
9Strong evidenceChouteau, OK, United StatesHQ checked Sep 22, 2026501-1,000381 contacts →

Strong evidence

“GRDA utilizes a diverse portfolio of electric generation assets to keep rates low and reliability high.”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceAkron, OH, United StatesHQ checked Sep 22, 20261,001-5,000380 contacts →

Partial evidence

“Energy Harbor is a premier carbon free power producer and fully integrated retail energy provider.”

Source: RevenueBase Database · checked Sep 22, 2026
11Strong evidenceHouston, TX, United StatesHQ checked Sep 22, 202651-20093 contacts →

Strong evidence

“Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable, secure, safe, and sustainable sources of power and meet the growing…”

Source: RevenueBase Database · checked Sep 22, 2026
12Strong evidenceMarquette, MI, United StatesHQ checked Sep 22, 202651-20090 contacts →

Strong evidence

“Upper Peninsula Power Company (UPPCO) is a regulated electric utility delivering safe, reliable energy to approximately customers in 10 counties across Michigan's Upper Peninsula.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidencePrinceton, NJ, United StatesHQ checked Sep 22, 202651-20066 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
14Strong evidenceArlington, VA, United StatesHQ checked Sep 22, 202611-5057 contacts →

Strong evidence

“Earthrise Energy acquires, develops, and operates power generation facilities that meet the changing demands of customers and the decarbonizing grid.”

Source: RevenueBase Database · checked Sep 22, 2026
15Strong evidenceNewark, NJ, United StatesHQ checked Sep 22, 20261,001-5,00044 contacts →

Strong evidence

“PSEG Power LLC is an utilities company based out of 80 PARK PLAZA, T-25, Newark, New Jersey, United States.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceTerre Haute, IN, United StatesHQ checked Sep 22, 2026501-1,00025 contacts →

Indirect evidence

“Founded in 1951, Hallador has a long history of strategic growth through a pragmatic, shareholder-driven approach that inspires trust, builds lasting relationships, generates…”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceCheyenne, WY, United StatesHQ checked Sep 22, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceBeaverton, OR, United StatesHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“PNW Solar is a U.S.”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceGlenpool, OK, United StatesHQ checked Sep 22, 202611-502 contacts →

Partial evidence

“We are working to build and maintain a modernized electrical grid that delivers power safely and reliably, and integrates renewable energy resources, with the maximum possible…”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceBrandywine, MD, United StatesHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
21Strong evidenceSchenectady, NY, United StatesHQ checked Sep 22, 20261-101 contacts →

Strong evidence

“GE Power is a world leader in power generation technologies for utilities, independent power producers, and industrial applications.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceBraintree, MA, United StatesHQ checked Sep 22, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 22 of 45 utility scale power generation based in the United States

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Utility scale power generation based in the United States at a glance

As of Sep 22, 2026
31.5%Verified-email coverage
480.2Average contacts per company
11-50Median size (employees)
13.3%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
12
51-200
6
501-1,000
4
1,001-5,000
6
5,001-10,000
2
10001+
3

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 45 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 scale power generation, 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 scale power generation”. 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 scale power generation), 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 scale power generation, 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, 6,803 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 scale power generation, 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 scale power generation are there based in the United States?

RevenueBase identified 45 utility scale power generation 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?

Georgia Power Company, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most utility scale power generation?

Houston leads with 6 headquartered companies, followed by Marquette (2) and Akron (1).

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 6,803 verified decision-maker contacts tracked across these 45 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.