Company lists · Data refreshed September 2026

Top 25 Rooftop wind turbine companies based in the United States

Name: Rooftop wind turbine 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 21, 2026 264 companies tracked

RevenueBase identified 264 rooftop wind turbine companies headquartered in the United States as of September 2026 and tracks 2,468 professional contacts across them, including 508 with verified work emails. Chicago is the largest hub.

This list covers rooftop wind turbine 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 21, 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 21, 2026 86% judged on-target in blind review

264Companies

2,468Contacts tracked

508Verified emails

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The 25 largest rooftop wind turbine companies based in the United States

Ranked by team size

Top 25 of 264 rooftop wind turbine companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to rooftop wind turbine 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	Greenspark Energy	Indirect evidence	Rochester, NY, United StatesHQ checked Sep 21, 2026	51-200	101 contacts →
	Indirect evidence “GreenSpark Solar is a nationally recognized clean energy leader and developer with a 23-year track record of supporting communities and organizations with accessible clean energy…” Source: RevenueBase Database · checked Sep 21, 2026
2	CS Wind America	Partial evidence	Pueblo, CO, United StatesHQ checked Sep 21, 2026	501-1,000	89 contacts →
	Partial evidence “Located in Pueblo, Colorado, we are the largest wind tower manufacturing facility in the world.” Source: RevenueBase Database · checked Sep 21, 2026
3	Straightup Solar	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 21, 2026	51-200	73 contacts →
	Indirect evidence “With twenty years of experience, we simplify solar solutions for residential, commercial, and industrial customers.” Source: RevenueBase Database · checked Sep 21, 2026
4	ONE Power Company	Partial evidence	Findlay, OH, United StatesHQ checked Sep 21, 2026	51-200	69 contacts →
	Partial evidence “One Power Company is an industrial power company and the largest installer of on-site wind energy in North America.” Source: RevenueBase Database · checked Sep 21, 2026
5	Green Power Energy	Indirect evidence	Annandale, NJ, United StatesHQ checked Sep 21, 2026	51-200	58 contacts →
	Indirect evidence “Green Power Energy has been in operation since 2009, serving thousands of homes and businesses across the Northeast.” Source: RevenueBase Database · checked Sep 21, 2026
6	AMP X Titanium	Indirect evidence	Rancho Cucamonga, CA, United StatesHQ checked Sep 21, 2026	201-500	55 contacts →
	Indirect evidence “Amp x Titanium is one of the leading companies in the solar industry, helping team members develop into successful individuals.” Source: RevenueBase Database · checked Sep 21, 2026
7	Xzeres Corp	Indirect evidence	Wilsonville, OR, United StatesHQ checked Sep 21, 2026	11-50	55 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
8	Tron Solar	Indirect evidence	Vernon Hills, IL, United StatesHQ checked Sep 21, 2026	51-200	49 contacts →
	Indirect evidence “Tron Solar is a clean energy company dedicated to make the world we live in, livable for our future generations.” Source: RevenueBase Database · checked Sep 21, 2026
9	Team Sunshine Construction	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	48 contacts →
	Indirect evidence “Team Sunshine is New England's Premier Solar Installation Company and has been helping New England Homeowners transition from fossil fuels to renewable energy since 2019.” Source: RevenueBase Database · checked Sep 21, 2026
10	Solarcraft	Indirect evidence	Novato, CA, United StatesHQ checked Sep 21, 2026	11-50	37 contacts →
	Indirect evidence “SolarCraft is 100% Employee-Owned and has been one of the largest green-tech employers based in the North Bay for over 40 years.” Source: RevenueBase Database · checked Sep 21, 2026
11	Luminalt	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 21, 2026	51-200	32 contacts →
	Indirect evidence “Luminalt designs, installs, and maintains premium solar electric systems for residential, commercial, and non-profit customers in the San Francisco Bay Area.” Source: RevenueBase Database · checked Sep 21, 2026
12	Kamtech Solar	Indirect evidence	Inwood, NY, United StatesHQ checked Sep 21, 2026	11-50	31 contacts →
	Indirect evidence “Kamtech Solar Solutions is a New York City-based alternative energy company committed to designing and installing the very best in solar energy systems.” Source: RevenueBase Database · checked Sep 21, 2026
13	South Texas Solar Systems, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
14	Auxilius Renewable Energy	Indirect evidence	Boswell, IN, United StatesHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “At Auxilius, we focus on providing services better and more efficiently.” Source: RevenueBase Database · checked Sep 21, 2026
15	Windfree Solar	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “Windfree Wind and Solar Energy Company was founded early in 2009 by a team of creative energy visionaries and early adopters of sustainable technologies.” Source: RevenueBase Database · checked Sep 21, 2026
16	SUN Solar	Indirect evidence	Bakersfield, CA, United StatesHQ checked Sep 21, 2026	51-200	22 contacts →
	Indirect evidence “At Sun Solar, we pride ourselves on our high quality installations, our attention to detail, and our service-oriented business model.” Source: RevenueBase Database · checked Sep 21, 2026
17	Wind Harvest	Partial evidence	Davis, CA, United StatesHQ checked Sep 21, 2026	1-10	17 contacts →
	Partial evidence “Mid-level wind (15’-100’ above the ground) is a world wide unused renewable energy resource.” Source: RevenueBase Database · checked Sep 21, 2026
18	Sunlogix Energy	Indirect evidence	Palm Desert, CA, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Sunlogix Energy is a leading full-service solar solution at the forefront of creating a sustainable planet that is powered by the sun.” Source: RevenueBase Database · checked Sep 21, 2026
19	Sundance Power Systems	Indirect evidence	Weaverville, NC, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Since 1995, Sundance Power has designed, installed and serviced renewable energy systems for a diverse number of homeowners.” Source: RevenueBase Database · checked Sep 21, 2026
20	GO Green Solar	Strong evidence	Anaheim, CA, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Strong evidence “In 2006, GoGreenSolar.com was founded and operated out of a garage, the website quickly became one of the top online destinations to purchase solar panels, wind turbines, LED…” Source: RevenueBase Database · checked Sep 21, 2026
21	Great SKY Solar	Indirect evidence	Lexington, MA, United StatesHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Great Sky Solar was founded on a vision of combining clean energy with a clean and transparent business model.” Source: RevenueBase Database · checked Sep 21, 2026
22	SWG Solar Energy INC	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 21, 2026	1-10	15 contacts →
	Partial evidence “SWG Energy is a renewable energy company that specializes in solar energy, wind power and geothermal systems.” Source: RevenueBase Database · checked Sep 21, 2026
23	Alternative Power Solutions Of Ny, LLC	Partial evidence	E. Syracuse, NY, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “NYSERDA eligible installers of Wind Energy Conversion Systems and Solar P-V systems.” Source: RevenueBase Database · checked Sep 21, 2026
24	Bright EYE Solar	Indirect evidence	Lancaster, PA, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Bright Eye Solar is a leading solar design and installation company based in Lancaster County, Pennsylvania, dedicated to making clean, renewable energy both accessible and…” Source: RevenueBase Database · checked Sep 21, 2026
25	Sunsmart Technologies	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “Energy freedom means living unchained from the utility monopoly.” Source: RevenueBase Database · checked Sep 21, 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: rooftop wind turbine 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 rooftop wind turbine companies.
Partial evidence: Its own public description names part of rooftop wind turbine companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rooftop wind turbine 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 264 rooftop wind turbine companies based in the United States

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Rooftop wind turbine companies based in the United States at a glance

As of Sep 21, 2026

20.6%Verified-email coverage

9.3Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Chicago

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

138

11-50

51-200

201-500

501-1,000

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 264 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 rooftop wind turbine 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 “rooftop wind turbine 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 rooftop wind turbine 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 rooftop wind turbine 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, 508 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 21, 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 rooftop wind turbine 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 rooftop wind turbine companies are there based in the United States?

RevenueBase identified 264 rooftop wind turbine 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?

Greenspark Energy, headquartered in Rochester, tops this list with the largest team on record.

Which city has the most rooftop wind turbine companies?

Chicago leads with 8 headquartered companies, followed by Austin (7) and San Diego (5).

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 508 verified decision-maker contacts tracked across these 264 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 21, 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.