Company lists · Data refreshed September 2026
Top 25 Energy generation companies based in the United States
RevenueBase identified 313 company matches for energy generation companies associated with the United States as of September 2026 and tracks 72,565 professional contacts across them, including 21,579 with verified work emails. Houston is the largest hub.
This list covers company matches for energy generation 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 September 16, 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.
The 25 largest energy generation companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,015 contacts → | ||||
Exact match “At Entergy (NYSE: ETR), we power life.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 9,458 contacts → | ||||
Exact match “Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 6,221 contacts → | ||||
Exact match “NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 4 | 5,036 contacts → | ||||
Exact match “High reliability, low prices and high customer satisfaction are cornerstones of our customer commitment, but it doesn't end there.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 3,700 contacts → | ||||
Exact match “GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 2,466 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 2,112 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 1,956 contacts → | ||||
Exact match “NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 1,906 contacts → | ||||
Exact match “Luminant, a subsidiary of Vistra Energy, is a competitive power generation business, including mining, wholesale marketing and trading, and development operations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 1,393 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 1,281 contacts → | ||||
Exact match “With over five decades of experience, Ormat Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 795 contacts → | ||||
Exact match “Clearway Energy Group’s vision is a world powered by clean energy.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 705 contacts → | ||||
Exact match “At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 567 contacts → | ||||
Exact match “SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 502 contacts → | ||||
Exact match “APR Energy delivers reliable electricity, fast.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 479 contacts → | ||||
Exact match “Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 478 contacts → | ||||
Exact match “Founded in 1990, LS Power is a premier development, investment, and operating company focused on the North American power and energy infrastructure sector, with leading platforms…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 18 | 476 contacts → | ||||
Exact match “Finding a single capable partner to support both large- and small-scale power generation needs can be challenging.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 19 | 448 contacts → | ||||
Exact match “GenOn Energy, Inc.(NYSE: GEN) is one of the largest competitive generators of wholesale electricity in the United States.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 20 | 428 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 21 | 331 contacts → | ||||
Exact match “Tenaska is a leading energy company with business operations that span the energy value chain.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 22 | 329 contacts → | ||||
Exact match “We are a leading energy services provider specializing in the engineering, manufacturing, sales, leasing, and operations of cutting-edge power technology including natural gas and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 23 | 319 contacts → | ||||
Exact match “IHI Power Services Corp.(IPSC) provides operations, maintenance, and management services to the US power generation industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 24 | 304 contacts → | ||||
Exact match “Who We Are Con Edison Development develops, owns and operates renewable and energy infrastructure projects.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 25 | 252 contacts → | ||||
Exact match “Onward Energy is an independent power platform that owns and operates over MW of utility-scale wind, solar and natural gas generation projects across the U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “energy generation companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 313 energy generation companies based in the United States
See the full list, filter by size, metro and specialty, and access 21,579 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy generation companies 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 313 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 “energy generation 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 21,579 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 September 16, 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.
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 “energy generation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy generation companies are there based in the United States?
RevenueBase identified 313 company matches for energy generation companies associated with the United States as of September 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?
Entergy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy generation companies?
Houston leads with 32 company records, followed by New York (16) and Austin (4).
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 21,579 professional contacts with verified work emails tracked across these 313 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 September 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 313 energy generation companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Energy generation companies by geography
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- Energy generation companies based in France
- Energy generation companies based in Germany
- Energy generation companies based in Greece
- Energy generation companies based in India
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- Energy generation companies based in Italy
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy generation companies based in Argentina
- Energy generation companies based in Australia
- Energy generation companies based in Brazil
- Energy generation companies based in Canada
- Energy generation companies based in Chile
- Energy generation companies based in Colombia
Company intelligence · public preview
Top 25 energy generation companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 313 matching company records for energy generation companies based in the United States, with 72,565 tracked contacts and 21,579 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy generation companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Entergyentergy.comHQ: New Orleans, LA, United StatesReported employees: 10001+ | New Orleans, LA, United States | 10001+ | Exact match | 11,015 contacts → |
“At Entergy (NYSE: ETR), we power life.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Constellationconstellationenergy.comHQ: Baltimore, MD, United StatesReported employees: 10001+ | Baltimore, MD, United States | 10001+ | Exact match | 9,458 contacts → |
“Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Nextera Energy Resourcesnexteraenergy.comHQ: Juno Beach, FL, United StatesReported employees: 10001+ | Juno Beach, FL, United States | 10001+ | Exact match | 6,221 contacts → |
“NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Georgia Power Companygeorgiapower.comHQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 5,036 contacts → |
“High reliability, low prices and high customer satisfaction are cornerstones of our customer commitment, but it doesn't end there.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Fieldcorefieldcore.comHQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 3,700 contacts → |
“GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Vistra Corpvistracorp.comHQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 2,466 contacts → |
“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…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Calpinecalpine.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,112 contacts → |
“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…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  NAESnaes.comHQ: Issaquah, WA, United StatesReported employees: 1,001-5,000 | Issaquah, WA, United States | 1,001-5,000 | Exact match | 1,956 contacts → |
“NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Luminantluminant.comHQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 1,906 contacts → |
“Luminant, a subsidiary of Vistra Energy, is a competitive power generation business, including mining, wholesale marketing and trading, and development operations.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Santee Coopersanteecooper.comHQ: Moncks Corner, SC, United StatesReported employees: 1,001-5,000 | Moncks Corner, SC, United States | 1,001-5,000 | Exact match | 1,393 contacts → |
“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.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Ormat Technologies, INCormat.comHQ: Reno, NV, United StatesReported employees: 1,001-5,000 | Reno, NV, United States | 1,001-5,000 | Exact match | 1,281 contacts → |
“With over five decades of experience, Ormat Technologies, Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Clearway Energy Groupclearwayenergygroup.comHQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 795 contacts → |
“Clearway Energy Group’s vision is a world powered by clean energy.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Dynegydynegy.comHQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 705 contacts → |
“At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Soenergy Internationalsoenergy.comHQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 567 contacts → |
“SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  APR Energyaprenergy.comHQ: Jacksonville, FL, United StatesReported employees: 201-500 | Jacksonville, FL, United States | 201-500 | Exact match | 502 contacts → |
“APR Energy delivers reliable electricity, fast.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Mainspring Energymainspringenergy.comHQ: Menlo Park, CA, United StatesReported employees: 201-500 | Menlo Park, CA, United States | 201-500 | Exact match | 479 contacts → |
“Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  LS Powerlspower.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 478 contacts → |
“Founded in 1990, LS Power is a premier development, investment, and operating company focused on the North American power and energy infrastructure sector, with leading platforms…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Babcock Powerbabcockpower.comHQ: Danvers, MA, United StatesReported employees: 501-1,000 | Danvers, MA, United States | 501-1,000 | Exact match | 476 contacts → |
“Finding a single capable partner to support both large- and small-scale power generation needs can be challenging.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Genon Energygenon.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 448 contacts → |
“GenOn Energy, Inc.(NYSE: GEN) is one of the largest competitive generators of wholesale electricity in the United States.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Enfinity Globalenfinity.globalHQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 428 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Tenaskatenaska.com HQ: Omaha, NE, United StatesReported employees: 501-1,000 | Omaha, NE, United States | 501-1,000 | Exact match | 331 contacts → |
“Tenaska is a leading energy company with business operations that span the energy value chain.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Mesa Power Solutionsmesapowersolutions.comHQ: Loveland, CO, United StatesReported employees: 1,001-5,000 | Loveland, CO, United States | 1,001-5,000 | Exact match | 329 contacts → |
“We are a leading energy services provider specializing in the engineering, manufacturing, sales, leasing, and operations of cutting-edge power technology including natural gas and…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | IHI Power Services Corpihipower.com HQ: Aliso Viejo, CA, United StatesReported employees: 501-1,000 | Aliso Viejo, CA, United States | 501-1,000 | Exact match | 319 contacts → |
“IHI Power Services Corp.(IPSC) provides operations, maintenance, and management services to the US power generation industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CON Edison Developmentconeddev.com HQ: Valhalla, NY, United StatesReported employees: 201-500 | Valhalla, NY, United States | 201-500 | Exact match | 304 contacts → |
“Who We Are Con Edison Development develops, owns and operates renewable and energy infrastructure projects.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Onward Energyonwardenergy.comHQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 252 contacts → |
“Onward Energy is an independent power platform that owns and operates over MW of utility-scale wind, solar and natural gas generation projects across the U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 313 company matches
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Energy generation companies: dataset insights
September 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
312 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 313 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy generation companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy generation companies did RevenueBase find based in the United States?
The saved snapshot records 313 matching company records, 72,565 tracked contacts and 21,579 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy generation companies by geography
- Energy generation companies based in Argentina
- Energy generation companies based in Australia
- Energy generation companies based in Brazil
- Energy generation companies based in Canada
- Energy generation companies based in Chile
- Energy generation companies based in Colombia
- Energy generation companies based in France
- Energy generation companies based in Germany
- Energy generation companies based in Greece
- Energy generation companies based in India
- Energy generation companies based in Indonesia
- Energy generation companies based in Italy
Cite this list
RevenueBase Data Team. Top 25 energy generation companies based in the United States. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-generation-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy generation companies based in Argentina
- Energy generation companies based in Australia
- Energy generation companies based in Brazil
- Energy generation companies based in Canada
- Energy generation companies based in Chile
- Energy generation companies based in Colombia
Company intelligence · public preview
Top 25 energy generation companies based in the United States
RevenueBase records 313 matching company records for energy generation companies based in the United States, with 72,565 tracked contacts and 21,579 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy generation companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Entergyentergy.com HQ: New Orleans, LA, United StatesReported employees: 10001+ | New Orleans, LA, United States | 10001+ | Exact match | 11,015 contacts → |
“At Entergy (NYSE: ETR), we power life.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Constellationconstellationenergy.com HQ: Baltimore, MD, United StatesReported employees: 10001+ | Baltimore, MD, United States | 10001+ | Exact match | 9,458 contacts → |
“Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Nextera Energy Resourcesnexteraenergy.com HQ: Juno Beach, FL, United StatesReported employees: 10001+ | Juno Beach, FL, United States | 10001+ | Exact match | 6,221 contacts → |
“NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Georgia Power Companygeorgiapower.com HQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 5,036 contacts → |
“High reliability, low prices and high customer satisfaction are cornerstones of our customer commitment, but it doesn't end there.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Fieldcorefieldcore.com HQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 3,700 contacts → |
“GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Vistra Corpvistracorp.com HQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 2,466 contacts → |
“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…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Calpinecalpine.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,112 contacts → |
“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…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | NAESnaes.com HQ: Issaquah, WA, United StatesReported employees: 1,001-5,000 | Issaquah, WA, United States | 1,001-5,000 | Exact match | 1,956 contacts → |
“NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Luminantluminant.com HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 1,906 contacts → |
“Luminant, a subsidiary of Vistra Energy, is a competitive power generation business, including mining, wholesale marketing and trading, and development operations.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Santee Coopersanteecooper.com HQ: Moncks Corner, SC, United StatesReported employees: 1,001-5,000 | Moncks Corner, SC, United States | 1,001-5,000 | Exact match | 1,393 contacts → |
“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.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ormat Technologies, INCormat.com HQ: Reno, NV, United StatesReported employees: 1,001-5,000 | Reno, NV, United States | 1,001-5,000 | Exact match | 1,281 contacts → |
“With over five decades of experience, Ormat Technologies, Inc.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Clearway Energy Groupclearwayenergygroup.com HQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 795 contacts → |
“Clearway Energy Group’s vision is a world powered by clean energy.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Dynegydynegy.com HQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 705 contacts → |
“At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Soenergy Internationalsoenergy.com HQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 567 contacts → |
“SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | APR Energyaprenergy.com HQ: Jacksonville, FL, United StatesReported employees: 201-500 | Jacksonville, FL, United States | 201-500 | Exact match | 502 contacts → |
“APR Energy delivers reliable electricity, fast.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Mainspring Energymainspringenergy.com HQ: Menlo Park, CA, United StatesReported employees: 201-500 | Menlo Park, CA, United States | 201-500 | Exact match | 479 contacts → |
“Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | LS Powerlspower.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 478 contacts → |
“Founded in 1990, LS Power is a premier development, investment, and operating company focused on the North American power and energy infrastructure sector, with leading platforms…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Babcock Powerbabcockpower.com HQ: Danvers, MA, United StatesReported employees: 501-1,000 | Danvers, MA, United States | 501-1,000 | Exact match | 476 contacts → |
“Finding a single capable partner to support both large- and small-scale power generation needs can be challenging.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Genon Energygenon.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 448 contacts → |
“GenOn Energy, Inc.(NYSE: GEN) is one of the largest competitive generators of wholesale electricity in the United States.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Enfinity Globalenfinity.global HQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 428 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Tenaskatenaska.com HQ: Omaha, NE, United StatesReported employees: 501-1,000 | Omaha, NE, United States | 501-1,000 | Exact match | 331 contacts → |
“Tenaska is a leading energy company with business operations that span the energy value chain.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Mesa Power Solutionsmesapowersolutions.com HQ: Loveland, CO, United StatesReported employees: 1,001-5,000 | Loveland, CO, United States | 1,001-5,000 | Exact match | 329 contacts → |
“We are a leading energy services provider specializing in the engineering, manufacturing, sales, leasing, and operations of cutting-edge power technology including natural gas and…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | IHI Power Services Corpihipower.com HQ: Aliso Viejo, CA, United StatesReported employees: 501-1,000 | Aliso Viejo, CA, United States | 501-1,000 | Exact match | 319 contacts → |
“IHI Power Services Corp.(IPSC) provides operations, maintenance, and management services to the US power generation industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CON Edison Developmentconeddev.com HQ: Valhalla, NY, United StatesReported employees: 201-500 | Valhalla, NY, United States | 201-500 | Exact match | 304 contacts → |
“Who We Are Con Edison Development develops, owns and operates renewable and energy infrastructure projects.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Onward Energyonwardenergy.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 252 contacts → |
“Onward Energy is an independent power platform that owns and operates over MW of utility-scale wind, solar and natural gas generation projects across the U.S.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 313 company matches
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Energy generation companies: dataset insights
September 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
312 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 313 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy generation companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy generation companies did RevenueBase find based in the United States?
The saved snapshot records 313 matching company records, 72,565 tracked contacts and 21,579 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 energy generation companies based in the United States. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-generation-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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