Company lists · Data refreshed October 2026

Top 25 Marine renewable energy developers based in the United States

RevenueBase identified 114 company matches for marine renewable energy developers associated with the United States as of October 2026 and tracks 1,206 professional contacts across them, including 481 with verified work emails. Houston is the largest hub.

This list covers company matches for marine renewable energy 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 October 18, 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 Oct 18, 2026 How this list was built
114Companies
1,206Contacts tracked
481Verified emails
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The 25 largest marine renewable energy developers based in the United States

Ranked by team size
Top 25 of 114 company matches for marine renewable energy developers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBrownsville, TX, United StatesHQ recorded Oct 18, 20261,001-5,000220 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 · Oct 18, 2026 · View company records in RevenueBase
2Exact matchPortland, OR, United StatesHQ recorded Oct 18, 202651-200122 contacts →

Exact match

“The open ocean is Earth’s largest and most power-dense renewable energy resource.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchEmeryville, CA, United StatesHQ recorded Oct 18, 202651-20090 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 · Oct 18, 2026 · View company records in RevenueBase
4Exact matchGulfport, MS, United StatesHQ recorded Oct 18, 202651-20078 contacts →

Exact match

“The world’s only wind and solar-powered autonomous underwater and surface vehicle (AUSV) designed for long-range, persistent ocean missions.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchNew Bedford, MA, United StatesHQ recorded Oct 18, 202651-20077 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 · Oct 18, 2026 · View company records in RevenueBase
6Exact matchPortland, ME, United StatesHQ recorded Oct 18, 202611-5058 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 · Oct 18, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Oct 18, 202651-20055 contacts →

Exact match

“We envision a future powered by offshore wind-built for communities and shared success.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchWaimanalo, HI, United StatesHQ recorded Oct 18, 202611-5047 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 · Oct 18, 2026 · View company records in RevenueBase
9Exact matchOakland, CA, United StatesHQ recorded Oct 18, 202611-5040 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 · Oct 18, 2026 · View company records in RevenueBase
10Exact matchCharlottesville, VA, United StatesHQ recorded Oct 18, 202611-5024 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 · Oct 18, 2026 · View company records in RevenueBase
11Exact matchBaltimore, MD, United StatesHQ recorded Oct 18, 202611-5018 contacts →

Exact match

“Developer of the largest offshore wind facility to serve the people of Maryland.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchPortland, ME, United StatesHQ recorded Oct 18, 20261-1017 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 · Oct 18, 2026 · View company records in RevenueBase
13Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 18, 202611-5013 contacts →

Exact match

“Ocean Thermal Energy (OTE) Corporation is a leader in designing and developing secure ocean-based power plants.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchNew Bedford, MA, United StatesHQ recorded Oct 18, 202611-5012 contacts →

Exact match

“LPS addresses the problems of cost, environmental impact, and regulatory complexity in hydropower and ocean energy.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchKailua-Kona, HI, United StatesHQ recorded Oct 18, 20261-1011 contacts →

Exact match

“Global OTEC has designed a floating platform capable of converting solar heat energy stored in the oceans into renewable baseload power.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Oct 18, 202611-5011 contacts →

Exact match

“Verdant Power is at the forefront of advancing the global tidal energy industry to make tidal energy technology available worldwide.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchStafford, TX, United StatesHQ recorded Oct 18, 202611-509 contacts →

Exact match

“Deep Reach Technology, Inc.(DRT) the leading specialist in marine engineering focused on renewable energy and marine mineral harvesting.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchOakland, CA, United StatesHQ recorded Oct 18, 20261-109 contacts →

Exact match

“CalWave is bringing superior power generating technology to market with global reach.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchSan Diego, CA, United StatesHQ recorded Oct 18, 202611-509 contacts →

Exact match

“Ocean Motion Technologies develops innovative small-scale ocean wave energy devices that are controlled by advanced artificial intelligence systems.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchSouth Burlington, VT, United StatesHQ recorded Oct 18, 202611-509 contacts →

Exact match

“HAZELETT MARINE is the global leader in the design, manufacturing, and installation of the strongest Mooring Systems for marinas, swing moorings, floating solar, and floating…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchMiddletown, CT, United StatesHQ recorded Oct 18, 20261-109 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Oct 18, 20261-108 contacts →

Exact match

“Aikido Technologies is developing innovative technologies for the floating wind industry.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchTemecula, CA, United StatesHQ recorded Oct 18, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchBrooklyn, NY, United StatesHQ recorded Oct 18, 20261-108 contacts →

Exact match

“Pliant Energy Systems patents and develops technologies in the fields of electricity generation, marine robotics, propulsion and pumping.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchProvidence, RI, United StatesHQ recorded Oct 18, 202651-2007 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 114 marine renewable energy developers based in the United States

See the full list, filter by size, metro and specialty, and access 481 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine renewable energy developers based in the United States at a glance

As of Oct 18, 2026
39.9%Verified-email coverage
10.6Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · Houston
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
30
51-200
12
201-500
2
1,001-5,000
2
5,001-10,000
1

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 114 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 “marine renewable energy 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 481 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 October 18, 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 “marine renewable energy developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 114 company matches for marine renewable energy developers associated with the United States as of October 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?

Seatrium Amfels, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marine renewable energy developers?

Houston leads with 8 company records, followed by Boston (4) and New York (4).

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 481 professional contacts with verified work emails tracked across these 114 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 October 18, 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.