Company lists · Data refreshed October 2026

Top 21 Ocean thermal energy consultants based in the United States

RevenueBase identified 39 company matches for ocean thermal energy consultants associated with the United States as of October 2026 and tracks 392 professional contacts across them, including 217 with verified work emails. Portland is the largest hub.

This list covers company matches for ocean thermal energy consultants 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 19, 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 19, 2026 How this list was built
39Companies
392Contacts tracked
217Verified emails
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The 21 largest ocean thermal energy consultants based in the United States

Ranked by team size
Top 21 of 39 company matches for ocean thermal energy consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 matchPortland, OR, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
2Exact matchWaimanalo, HI, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
3Exact matchOakland, CA, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
4Exact matchCharlottesville, VA, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
5Exact matchPortland, ME, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
6Exact matchFairfax Station, United StatesHQ recorded Oct 19, 202611-5016 contacts →

Exact match

“Applied Ocean Sciences (AOS) is a collective of ocean consultants, powered by our passion to do the highest caliber science, push the boundaries of technology and innovation, and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchPhiladelphia, PA, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
8Exact matchNew Bedford, MA, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
9Exact matchKailua-Kona, HI, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
10Exact matchOakland, CA, United StatesHQ recorded Oct 19, 20261-109 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchVista, CA, United StatesHQ recorded Oct 19, 20261-108 contacts →

Exact match

“We create electricity from temperature differences in the ocean.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchTemecula, CA, United StatesHQ recorded Oct 19, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchSeattle, WA, United StatesHQ recorded Oct 19, 20261-106 contacts →

Exact match

“Oscilla Power, Inc.(OPI) is developing advanced technology to harness electricity from ocean waves.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchPortland, OR, United StatesHQ recorded Oct 19, 20261-105 contacts →

Exact match

“POET believes that ocean renewable energy represents an enormous opportunity for the Pacific Region to responsibly meet its growing power needs”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchHonolulu, HI, United StatesHQ recorded Oct 19, 20261-105 contacts →

Exact match

“Ocean thermal power plants that deliver 24/7 renewable energy.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchMarion, MA, United StatesHQ recorded Oct 19, 20261-104 contacts →

Exact match

“MARINE RENEWABLE ENERGY COLLABORATIVE OF NEW ENGLAND is a non-profit organization located in Marion, Massachusetts, United States.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchSanta Barbara, CA, United StatesHQ recorded Oct 19, 202611-503 contacts →

Exact match

“Aquantis has achieved a renewable energy breakthrough with its 1.25 MW marine turbine, which generates electric power from constantly flowing ocean currents.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchCambridge, MA, United StatesHQ recorded Oct 19, 20261-103 contacts →

Exact match

“Current Lab produces proprietary ocean models to deliver precision ocean current forecasts from surface to sea floor.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchJacobus, PA, United StatesHQ recorded Oct 19, 20261-102 contacts →

Exact match

“Sea Solar Power has been focused on bringing Ocean Thermal Energy to the world since it’s inception in 1972.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchNewport, RI, United StatesHQ recorded Oct 19, 20261-101 contacts →

Exact match

“Ocean State Sensing is an engineering and consulting company that specializes in underwater thermal sensing and mapping, ocean engineering services, and project management.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchJuneau, AK, United StatesHQ recorded Oct 19, 20261-101 contacts →

Exact match

“Sitkana is a Juneau-based company developing technology to provide lower cost electricity to coastal communities using oceanic tidal currents.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 21 of 39 ocean thermal energy consultants based in the United States

See the full list, filter by size, metro and specialty, and access 217 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ocean thermal energy consultants based in the United States at a glance

As of Oct 19, 2026
55.4%Verified-email coverage
10.1Average contacts per company
1-10Median size (employees)
7.7%Largest-city concentration · Portland
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
11
51-200
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 39 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 “ocean thermal energy consultants” 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 217 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 19, 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 “ocean thermal energy consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ocean thermal energy consultants are there based in the United States?

RevenueBase identified 39 company matches for ocean thermal energy consultants 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?

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

Which city has the most ocean thermal energy consultants?

Portland leads with 3 company records, followed by Oakland (2) and Adair (1).

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 217 professional contacts with verified work emails tracked across these 39 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 19, 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.