Company lists · Data refreshed September 2026

Top 25 Renewable energy construction companies based in the United States

Name: Renewable energy construction 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 17, 2026 1,822 companies tracked

RevenueBase identified 1,822 renewable energy construction companies headquartered in the United States as of September 2026 and tracks 46,978 professional contacts across them, including 18,197 with verified work emails. Houston is the largest hub.

This list covers renewable energy construction 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 17, 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 17, 2026 86% judged on-target in blind review

1,822Companies

46,978Contacts tracked

18,197Verified emails

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The 25 largest renewable energy construction companies based in the United States

Ranked by team size

Top 25 of 1,822 renewable energy construction companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy construction 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	FTI	Strong evidence	Menasha, WI, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,741 contacts →
	Strong evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 17, 2026
2	Mckinstry	Strong evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,213 contacts →
	Strong evidence “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Source: RevenueBase Database · checked Sep 17, 2026
3	Blattner	Partial evidence	Avon, MN, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,531 contacts →
	Partial evidence “With more than 115 years of construction experience, Blattner has played a vital role in building America’s critical infrastructure, ranging from railroads and highways to dams…” Source: RevenueBase Database · checked Sep 17, 2026
4	NPL Construction CO	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,358 contacts →
	Strong evidence “NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.” Source: RevenueBase Database · checked Sep 17, 2026
5	Solv Energy	Strong evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,286 contacts →
	Strong evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 17, 2026
6	Wanzek Construction, Inc., A Mastec Company	Strong evidence	Fargo, ND, United StatesHQ checked Sep 17, 2026	1,001-5,000	933 contacts →
	Strong evidence “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Source: RevenueBase Database · checked Sep 17, 2026
7	Pattern Energy	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	501-1,000	755 contacts →
	Partial evidence “Pattern Energy is one of the world’s largest privately-owned developers and operators of wind, solar, transmission, and energy storage projects.” Source: RevenueBase Database · checked Sep 17, 2026
8	SEL Construction Corporation	Strong evidence	Loomis, CA, United StatesHQ checked Sep 17, 2026	n/a	722 contacts →
	Strong evidence “Experienced commercial contractor specializing in renewable energy, electrical, and roofing projects for privately-owned buildings as well as state/local government buildings in…” Source: RevenueBase Database · checked Sep 17, 2026
9	Depcom Power, INC	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 17, 2026	1,001-5,000	624 contacts →
	Strong evidence “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Source: RevenueBase Database · checked Sep 17, 2026
10	Nexamp	Partial evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	201-500	607 contacts →
	Partial evidence “Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.” Source: RevenueBase Database · checked Sep 17, 2026
11	Greentech Renewables	Strong evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	595 contacts →
	Strong evidence “As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.” Source: RevenueBase Database · checked Sep 17, 2026
12	Apex Clean Energy	Partial evidence	Charlottesville, VA, United StatesHQ checked Sep 17, 2026	201-500	594 contacts →
	Partial evidence “Apex Clean Energy was founded with a singular focus: to accelerate the shift to clean energy.” Source: RevenueBase Database · checked Sep 17, 2026
13	Arb, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	528 contacts →
	Indirect evidence “ARB Inc.” Source: RevenueBase Database · checked Sep 17, 2026
14	APR Energy	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 17, 2026	201-500	502 contacts →
	Partial evidence “APR Energy delivers reliable electricity, fast.” Source: RevenueBase Database · checked Sep 17, 2026
15	RRC Companies	Partial evidence	Round Rock, TX, United StatesHQ checked Sep 17, 2026	201-500	494 contacts →
	Partial evidence “RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.” Source: RevenueBase Database · checked Sep 17, 2026
16	Babcock Power	Indirect evidence	Danvers, MA, United StatesHQ checked Sep 17, 2026	501-1,000	476 contacts →
	Indirect evidence “Finding a single capable partner to support both large- and small-scale power generation needs can be challenging.” Source: RevenueBase Database · checked Sep 17, 2026
17	Enfinity Global	Indirect evidence	Miami, FL, United StatesHQ checked Sep 17, 2026	201-500	428 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	EDP Renewables North America	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	425 contacts →
	Strong evidence “EDP Renewables North America LLC (EDPR NA), its affiliates, and its subsidiaries develop, construct, own, and operate wind farms, solar parks, and energy storage systems…” Source: RevenueBase Database · checked Sep 17, 2026
19	Signal Energy	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	409 contacts →
	Strong evidence “Signal Energy is a leading full service design/build contractor providing Engineering, Procurement, and Construction (EPC) services for renewable energy & infrastructure projects.” Source: RevenueBase Database · checked Sep 17, 2026
20	Leeward Renewable Energy	Strong evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	201-500	386 contacts →
	Strong evidence “LRE (Leeward Renewable Energy) is forging an American energy future with integrity, innovation, and positive impact.” Source: RevenueBase Database · checked Sep 17, 2026
21	Energyscape Renewables	Indirect evidence	Denver, United StatesHQ checked Sep 17, 2026	501-1,000	379 contacts →
	Indirect evidence “Established in 2019.” Source: RevenueBase Database · checked Sep 17, 2026
22	Supernova	Strong evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	201-500	370 contacts →
	Strong evidence “Supernova embodies the spirit of innovation and dedication to a sustainable future, making it a shining example of what it means to be a leader in the renewable energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
23	Blue Ridge Power	Partial evidence	Asheville, NC, United StatesHQ checked Sep 17, 2026	501-1,000	369 contacts →
	Partial evidence “Established in May 2021, Blue Ridge Power is a full-service EPC (Engineering, Procurement, Construction) company for solar and solar + storage projects in the United States.” Source: RevenueBase Database · checked Sep 17, 2026
24	Gemma Power Systems	Partial evidence	Glastonbury, CT, United StatesHQ checked Sep 17, 2026	51-200	353 contacts →
	Partial evidence “Gemma Power Systems, a wholly owned subsidiary of Argan Inc.(NYSE: AGX), is a leading Engineering, Procurement and Construction (EPC) company providing innovative solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
25	Semper Solaris	Indirect evidence	El Cajon, CA, United StatesHQ checked Sep 17, 2026	501-1,000	337 contacts →
	Indirect evidence “Ranked #1 in Solar + Battery Installation in America by "Solar Power World" Go Solar American Style!#1 Veteran Owned Solar Company in California Solar Panels.” Source: RevenueBase Database · checked Sep 17, 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 construction 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 construction companies.
Partial evidence: Its own public description names part of renewable energy construction 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 construction 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 1,822 renewable energy construction companies based in the United States

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Renewable energy construction companies based in the United States at a glance

As of Sep 17, 2026

38.7%Verified-email coverage

25.8Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

742

11-50

704

51-200

255

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,822 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 renewable energy construction 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 construction 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 construction 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 construction 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, 18,197 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 17, 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 construction 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 construction 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 construction companies are there based in the United States?

RevenueBase identified 1,822 renewable energy construction 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?

FTI, headquartered in Menasha, tops this list with the largest team on record.

Which city has the most renewable energy construction companies?

Houston leads with 39 headquartered companies, followed by New York (39) and San Diego (37).

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 18,197 verified decision-maker contacts tracked across these 1,822 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 17, 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.