Company lists · Data refreshed September 2026

Top 25 Renewable energy companies based in the United States

Name: Renewable energy companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 2,301 companies tracked

RevenueBase identified 2,301 renewable energy companies headquartered in the United States as of September 2026 and tracks 174,211 professional contacts across them, including 58,652 with verified work emails and 59,981 with mobile numbers. New York is the largest hub.

This list covers renewable energy companies 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 6, 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 6, 2026 86% judged on-target in blind review

2,301Companies

174,211Contacts tracked

58,652Verified emails

59,981Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest renewable energy companies based in the United States

Ranked by team size

Top 25 of 2,301 renewable energy companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Dominion Energy	Partial evidence	Richmond, VA, United StatesHQ checked Sep 6, 2026	10001+	31,976 contacts →
	“Dominion Energy (NYSE: D), headquartered in Richmond, Va, provides regulated electricity service to 3.6 million homes and businesses in Virginia, North Carolina, and South…” Source: company website · checked Sep 6, 2026
2	GE Vernova	Partial evidence	Boston, MA, United StatesHQ checked Sep 6, 2026	10001+	29,528 contacts →
	“GE Vernova is a purpose-built energy technology company on a mission to electrify to thrive and decarbonize the world.” Source: company website · checked Sep 6, 2026
3	Constellation	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 6, 2026	10001+	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…” Source: company website · checked Sep 6, 2026
4	DTE Energy	Partial evidence	Detroit, MI, United StatesHQ checked Sep 6, 2026	10001+	9,087 contacts →
	“DTE is one of the largest Fortune 500 diversified energy companies, proudly serving Michigan for over a century.” Source: company website · checked Sep 6, 2026
5	Sunrun	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	10001+	7,974 contacts →
	“Life runs on clean energy.” Source: company website · checked Sep 6, 2026
6	Nextera Energy Resources	Partial evidence	Juno Beach, FL, United StatesHQ checked Sep 6, 2026	10001+	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.” Source: company website · checked Sep 6, 2026
7	Vistra Corp	Indirect evidence	Irving, TX, United StatesHQ checked Sep 6, 2026	5,001-10,000	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…” Source: company website · checked Sep 6, 2026
8	Invenergy	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 6, 2026	1,001-5,000	2,408 contacts →
	“Invenergy is North America’s largest privately held developer, owner, and operator of innovative, reliable power infrastructure.” Source: company website · checked Sep 6, 2026
9	Calpine	Indirect evidence	Houston, TX, United StatesHQ checked Sep 6, 2026	1,001-5,000	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…” Source: company website · checked Sep 6, 2026
10	Mitsubishi Power Americas	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,859 contacts →
	“Mitsubishi Power Americas is creating a future that works for people and the planet through innovative power generation technology and solutions.” Source: company website · checked Sep 6, 2026
11	Trinity Solar	Indirect evidence	Wall Township, NJ, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,794 contacts →
	“Trinity Solar is one of the largest privately held residential solar companies in the nation.” Source: company website · checked Sep 6, 2026
12	Just Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,645 contacts →
	“Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Source: company website · checked Sep 6, 2026
13	Solv Energy	Strong evidence	San Diego, CA, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,286 contacts →
	“SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: company website · checked Sep 6, 2026
14	Qcells North America	Partial evidence	Irvine, CA, United StatesHQ checked Sep 6, 2026	501-1,000	954 contacts →
	“Qcells is a renowned complete energy solutions provider in solar cell and module, energy storage, downstream project business and energy retail.” Source: company website · checked Sep 6, 2026
15	Wanzek Construction, Inc., A Mastec Company	Strong evidence	Fargo, ND, United StatesHQ checked Sep 6, 2026	1,001-5,000	933 contacts →
	“Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Source: company website · checked Sep 6, 2026
16	Recurrent Energy	Partial evidence	Austin, United StatesHQ checked Sep 6, 2026	501-1,000	931 contacts →
	“Recurrent Energy, a subsidiary of Canadian Solar Inc, is one of the world's largest and most geographically diversified utility-scale solar and energy storage project development…” Source: company website · checked Sep 6, 2026
17	Sunnova Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 6, 2026	501-1,000	906 contacts →
	“Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Source: company website · checked Sep 6, 2026
18	CLECO	Partial evidence	Pineville, LA, United StatesHQ checked Sep 6, 2026	1,001-5,000	867 contacts →
	“At Cleco, we consider it an honor to provide the next generation with the resources they need for personal and professional success through sustainable, clean and safe energy…” Source: company website · checked Sep 6, 2026
19	Clearway Energy Group	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	501-1,000	795 contacts →
	“Clearway Energy Group’s vision is a world powered by clean energy.” Source: company website · checked Sep 6, 2026
20	Pattern Energy	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 6, 2026	501-1,000	755 contacts →
	“Pattern Energy is one of the world’s largest privately-owned developers and operators of wind, solar, transmission, and energy storage projects.” Source: company website · checked Sep 6, 2026
21	Grid Alternatives	Partial evidence	Oakland, CA, United StatesHQ checked Sep 6, 2026	201-500	731 contacts →
	“GRID Alternatives is a national leader in bringing affordable solar power, clean mobility, and energy storage to underserved communities while creating pathways to life-changing…” Source: company website · checked Sep 6, 2026
22	LUMIO	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 6, 2026	5,001-10,000	719 contacts →
	“We’re on a mission to make power personal.” Source: company website · checked Sep 6, 2026
23	Dynegy	Indirect evidence	Irving, TX, United StatesHQ checked Sep 6, 2026	5,001-10,000	705 contacts →
	“At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Source: company website · checked Sep 6, 2026
24	Strata Clean Energy	Partial evidence	Durham, NC, United StatesHQ checked Sep 6, 2026	501-1,000	631 contacts →
	“Strata Clean Energy is a fully integrated energy infrastructure company serving utilities, independent power producers, and hyperscalers navigating the rapid transformation of the…” Source: company website · checked Sep 6, 2026
25	Depcom Power, INC	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 6, 2026	1,001-5,000	624 contacts →
	“DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Source: company website · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy companies. 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 renewable energy companies.
Partial evidence: Its own public description names part of renewable energy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy companies. 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 2,301 renewable energy companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 58,652 reachable decision-makers.

Free signup · no credit card

View the full list →

Renewable energy companies based in the United States at a glance

As of Sep 6, 2026

33.7%Verified-email coverage

34.4%Mobile-number coverage

75.7Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

941

11-50

862

51-200

336

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

54,6070–30

3,71331–60

2961–90

1390–180

290180+

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 renewable energy companies, 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 “renewable energy companies”. 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 renewable energy companies), 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 renewable energy companies, 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, 58,652 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 6, 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.

Renewable energy companies by metro

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 renewable energy companies, 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 renewable energy companies are there based in the United States?

RevenueBase identified 2,301 renewable energy companies 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?

Dominion Energy, headquartered in Richmond, tops this list with the largest team on record.

Which city has the most renewable energy companies?

New York leads with 98 headquartered companies, followed by Houston (83) and Chicago (45).

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 58,652 verified decision-maker contacts tracked across these 2,301 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,301 renewable energy companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Renewable energy companies by geography

Browse the directory

Browse: Companies home · All United States lists · All Renewable energy companies lists · New lists

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.