Company lists · Data refreshed September 2026

Top 25 Offshore wind developers based in the United States

Name: Offshore wind developers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 88 companies tracked

RevenueBase identified 88 offshore wind developers headquartered in the United States as of September 2026 and tracks 1,661 professional contacts across them, including 882 with verified work emails. Boston is the largest hub.

This list covers offshore wind developers 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 20, 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 20, 2026 86% judged on-target in blind review

88Companies

1,661Contacts tracked

882Verified emails

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The 25 largest offshore wind developers based in the United States

Ranked by team size

Top 25 of 88 offshore wind developers based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore wind developers: 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	Enfinity Global	Indirect evidence	Miami, FL, United StatesHQ checked Sep 20, 2026	201-500	428 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
2	Vineyard Wind	Strong evidence	New Bedford, MA, United StatesHQ checked Sep 20, 2026	51-200	98 contacts →
	Strong evidence “Vineyard Wind is well underway in developing the nation's first utility-scale offshore wind energy project over 15 miles off the coast of Massachusetts.” Source: RevenueBase Database · checked Sep 20, 2026
3	Principle Power	Partial evidence	Emeryville, CA, United StatesHQ checked Sep 20, 2026	51-200	95 contacts →
	Partial evidence “Principle Power is a global leader in floating wind technology, providing full lifecycle engineering services that deliver reliable, de-risked, and bankable solutions.” Source: RevenueBase Database · checked Sep 20, 2026
4	Panthalassa	Indirect evidence	Portland, OR, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Indirect evidence “The open ocean is Earth’s largest and most power-dense renewable energy resource.” Source: RevenueBase Database · checked Sep 20, 2026
5	Vineyard Offshore	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Strong evidence “We envision a future powered by offshore wind-built for communities and shared success.” Source: RevenueBase Database · checked Sep 20, 2026
6	Atlantic Shores Offshore Wind	Strong evidence	Atlantic City, NJ, United StatesHQ checked Sep 20, 2026	201-500	51 contacts →
	Strong evidence “Transparency, accountability, and reliability - that’s what Atlantic Shores envisions for the future of offshore wind.” Source: RevenueBase Database · checked Sep 20, 2026
7	Triple OAK Power	Indirect evidence	Portland, OR, United StatesHQ checked Sep 20, 2026	11-50	45 contacts →
	Indirect evidence “At Triple Oak Power, our mission is to develop sustainable energy plants.” Source: RevenueBase Database · checked Sep 20, 2026
8	C-Power	Indirect evidence	Charlottesville, VA, United StatesHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “C-Power™ is an ocean power company, tapping the world’s largest battery, our oceans, to supply cost-effective, dependable, and predictable energy generation systems for our…” Source: RevenueBase Database · checked Sep 20, 2026
9	Windserve Marine	Indirect evidence	U.s. East Coast, United StatesHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “WindServe Marine is a premier U.S.” Source: RevenueBase Database · checked Sep 20, 2026
10	Walden Renewables	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “Walden Renewables is a renewable energy development company founded by Henry Weitzner (CEO) and Jack Kenworthy (CDO).” Source: RevenueBase Database · checked Sep 20, 2026
11	Community Offshore Wind	Strong evidence	New York, United StatesHQ checked Sep 20, 2026	51-200	19 contacts →
	Strong evidence “Community Offshore Wind is an offshore wind joint venture of RWE and National Grid, committed to Local Clean Energy for All™.” Source: RevenueBase Database · checked Sep 20, 2026
12	US Wind, INC	Strong evidence	Baltimore, MD, United StatesHQ checked Sep 20, 2026	11-50	17 contacts →
	Strong evidence “Developer of the largest offshore wind facility to serve the people of Maryland.” Source: RevenueBase Database · checked Sep 20, 2026
13	Ithaca Clean Energy	Strong evidence	Fairhaven, MA, United StatesHQ checked Sep 20, 2026	1-10	15 contacts →
	Strong evidence “Developing cleantech solutions for the offshore wind industry.” Source: RevenueBase Database · checked Sep 20, 2026
14	Empire Energy	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	14 contacts →
	Strong evidence “Empire Energy is redefining how offshore wind projects are delivered globally, setting a new benchmark for quality, assurance, and operational excellence across the full asset…” Source: RevenueBase Database · checked Sep 20, 2026
15	Xceco LTD	Indirect evidence	Grimsby, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Providing operations, asset management, engineering and commercial services to the energy industry.” Source: RevenueBase Database · checked Sep 20, 2026
16	Littoral Power Systems, INC	Indirect evidence	New Bedford, MA, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “LPS addresses the problems of cost, environmental impact, and regulatory complexity in hydropower and ocean energy.” Source: RevenueBase Database · checked Sep 20, 2026
17	MAD Energy	Partial evidence	Sandpoint, ID, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “MAD Energy (MAD) is an energy infrastructure developer and operator building the cleanest and most practical energy solutions available today, while enabling energy technologies…” Source: RevenueBase Database · checked Sep 20, 2026
18	BGB Renewables LLC	Strong evidence	Providence, RI, United StatesHQ checked Sep 20, 2026	51-200	11 contacts →
	Strong evidence “BGB Renewables are driving the winds of change in the onshore and offshore Industry by working in collaboration and striving to continually invest in processes, technology and…” Source: RevenueBase Database · checked Sep 20, 2026
19	GEO Subsea LLC	Partial evidence	Middletown, CT, United StatesHQ checked Sep 20, 2026	1-10	10 contacts →
	Partial evidence “Geo SubSea is a unique small business serving the marine offshore and survey industries with expertise in marine geology and geophysics as well as strong familiarity with all…” Source: RevenueBase Database · checked Sep 20, 2026
20	Aikido Technologies	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1-10	10 contacts →
	Partial evidence “Aikido Technologies is developing innovative technologies for the floating wind industry.” Source: RevenueBase Database · checked Sep 20, 2026
21	Hydromine	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Hydromine is a US-based sustainable energy company dedicated to developing and investing in power production through patient capital and innovation.” Source: RevenueBase Database · checked Sep 20, 2026
22	Patriot Renewables	Strong evidence	Quincy, MA, United StatesHQ checked Sep 20, 2026	1-10	9 contacts →
	Strong evidence “PATRIOT RENEWABLES, LLC is a developer, owner, and operator of commercial wind energy projects.” Source: RevenueBase Database · checked Sep 20, 2026
23	CLS Wind	Strong evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Strong evidence “CLS Wind's technical innovations result in faster, safer, cheaper and more efficient installation, maintenance, repair and decommissioning of onshore and offshore wind turbines.” Source: RevenueBase Database · checked Sep 20, 2026
24	Accelerate Wind	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Partial evidence “Accelerate Wind is an early-stage startup, focused on helping commercial buildings affordably reach their renewable energy goals.” Source: RevenueBase Database · checked Sep 20, 2026
25	National Offshore Wind Research & Development Consortium	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Strong evidence “We prioritize, support, and promote research and development activities that reduce cost and risk of offshore wind development projects throughout the U.S.” Source: RevenueBase Database · checked Sep 20, 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: offshore wind developers. 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 offshore wind developers.
Partial evidence: Its own public description names part of offshore wind developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore wind developers. 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 88 offshore wind developers based in the United States

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Offshore wind developers based in the United States at a glance

As of Sep 20, 2026

53.1%Verified-email coverage

18.9Average contacts per company

1-10Median size (employees)

8.0%Largest-city concentration · Boston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 88 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 offshore wind developers, 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 “offshore wind developers”. 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 offshore wind developers), 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 offshore wind developers, 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, 882 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 20, 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 offshore wind developers, 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 offshore wind developers are there based in the United States?

RevenueBase identified 88 offshore wind developers 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?

Enfinity Global, headquartered in Miami, tops this list with the largest team on record.

Which city has the most offshore wind developers?

Boston leads with 7 headquartered companies, followed by Houston (7) and New York (7).

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 882 verified decision-maker contacts tracked across these 88 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 20, 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.