Company lists · Data refreshed September 2026

Top 25 Renewable energy offshore developers based in the United States

Name: Renewable energy offshore 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 17, 2026 168 companies tracked

RevenueBase identified 168 company matches for renewable energy offshore developers associated with the United States as of September 2026 and tracks 8,719 professional contacts across them, including 2,487 with verified work emails. Houston is the largest hub.

This list covers company matches for renewable energy offshore developers 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 17, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

168Companies

8,719Contacts tracked

2,487Verified emails

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The 25 largest renewable energy offshore developers based in the United States

Ranked by team size

Top 25 of 168 company matches for renewable energy offshore developers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	FTI	Exact match	Menasha, WI, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,741 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Helix Energy Solutions Group	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,706 contacts →
	Exact match “Helix Energy Solutions, headquartered in Houston, Texas, is an international offshore energy services company that provides specialty services to the offshore energy industry…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Baywa R.E. Americas	Exact match	Carlsbad, CA, United StatesHQ recorded Sep 17, 2026	201-500	244 contacts →
	Exact match “rethinkenergy BayWa r.e is a leading global renewable energy company committed to delivering best-in-class projects, services and solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Seatrium Amfels, INC	Exact match	Brownsville, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	229 contacts →
	Exact match “Seatrium AmFELS is an industry pioneer committed to sustainability by providing cleaner offshore & marine solutions, offshore renewables, and new energy, generating long-term…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Zentech Incorporated	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	51-200	181 contacts →
	Exact match “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Vineyard Wind	Exact match	New Bedford, MA, United StatesHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Principle Power	Exact match	Emeryville, CA, United StatesHQ recorded Sep 17, 2026	51-200	95 contacts →
	Exact match “Principle Power is a global leader in floating wind technology, providing full lifecycle engineering services that deliver reliable, de-risked, and bankable solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Panthalassa	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	91 contacts →
	Exact match “The open ocean is Earth’s largest and most power-dense renewable energy resource.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Vineyard Offshore	Exact match	Boston, MA, United StatesHQ recorded Sep 17, 2026	51-200	60 contacts →
	Exact match “We envision a future powered by offshore wind-built for communities and shared success.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Koil Energy	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	51-200	57 contacts →
	Exact match “Koil Energy is a leading energy services company offering subsea equipment and support services to the world’s energy and offshore industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	ORPC	Exact match	Portland, ME, United StatesHQ recorded Sep 17, 2026	11-50	57 contacts →
	Exact match “Proven and reliable underwater power systems that generate energy from free-flowing tides and rivers, ORPC improves people’s lives and their environment through sustainable energy…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	IOWN	Exact match	La Jolla, CA, United StatesHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “We want to facilitate the transition from fossil fuels to clean, renewable energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Atlantic Shores Offshore Wind	Exact match	Atlantic City, NJ, United StatesHQ recorded Sep 17, 2026	201-500	51 contacts →
	Exact match “Transparency, accountability, and reliability - that’s what Atlantic Shores envisions for the future of offshore wind.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Makai Ocean Engineering, INC	Exact match	Waimanalo, HI, United StatesHQ recorded Sep 17, 2026	11-50	46 contacts →
	Exact match “Makai Ocean Engineering was founded in 1973 as a diversified ocean engineering company focused on providing design engineering and development services to a broad range of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Oceantic Network	Exact match	Owings Mills, MD, United StatesHQ recorded Sep 17, 2026	11-50	45 contacts →
	Exact match “The Oceantic Network provides networking, communications, and educational platforms to support stakeholders' participation in the offshore wind and the wider ocean tech industries…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Ocergy	Exact match	Oakland, CA, United StatesHQ recorded Sep 17, 2026	11-50	41 contacts →
	Exact match “Ocergy is an innovative company focusing on the development of complex ocean systems solving energy and environmental challenges in a sustainable manner.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Oriden	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 17, 2026	11-50	30 contacts →
	Exact match “Oriden is a full-service renewable energy developer.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	C-Power	Exact match	Charlottesville, VA, United StatesHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Pearce Renewables	Exact match	Paso Robles, CA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	23 contacts →
	Exact match “Pearce Renewables, a leading solutions provider for operations, maintenance and engineering services to our nation’s mission-critical renewable energy infrastructure, helps…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Windserve Marine	Exact match	U.s. East Coast, United StatesHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “WindServe Marine is a premier U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Community Offshore Wind	Exact match	New York, United StatesHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “Community Offshore Wind is an offshore wind joint venture of RWE and National Grid, committed to Local Clean Energy for All™.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	US Wind, INC	Exact match	Baltimore, MD, United StatesHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Developer of the largest offshore wind facility to serve the people of Maryland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Edelen Renewables	Exact match	Lexington, KY, United StatesHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “From Appalachia to the Permian Basin, we are bringing the promise of renewable energy to the forgotten places, where coalminers and oil and gas workers powered the industrial…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Kelson Marine CO	Exact match	Portland, ME, United StatesHQ recorded Sep 17, 2026	1-10	16 contacts →
	Exact match “Kelson Marine is an ocean engineering firm that partners with its clients to solve the challenges of producing food and energy in the harsh world of the ocean.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Empire Energy	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	14 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 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 “renewable energy offshore developers”. 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 168 renewable energy offshore developers based in the United States

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Renewable energy offshore developers based in the United States at a glance

As of Sep 17, 2026

28.5%Verified-email coverage

51.9Average contacts per company

1-10Median size (employees)

13.1%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 168 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 “renewable energy offshore developers” 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 2,487 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 17, 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 “renewable energy offshore developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy offshore developers are there based in the United States?

RevenueBase identified 168 company matches for renewable energy offshore developers 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?

FTI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most renewable energy offshore developers?

Houston leads with 22 company records, followed by New York (10) and Boston (7).

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 2,487 professional contacts with verified work emails tracked across these 168 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 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 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.