Company lists · Data refreshed September 2026

Top 13 Tidal energy companies based in the United States

RevenueBase identified 38 tidal energy companies headquartered in the United States as of September 2026 and tracks 228 professional contacts across them, including 88 with verified work emails and 103 with mobile numbers. New York is the largest hub.

This list covers tidal energy 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 6, 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 6, 2026 86% judged on-target in blind review
38Companies
228Contacts tracked
88Verified emails
103Mobile numbers
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The 13 largest tidal energy companies based in the United States

Ranked by team size
Top 13 of 38 tidal energy companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tidal energy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePortland, ME, United StatesHQ checked Sep 6, 202611-5057 contacts →

“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…”

Source: company website · checked Sep 6, 2026
2Partial evidenceCharlottesville, VA, United StatesHQ checked Sep 6, 202611-5025 contacts →

“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: company website · checked Sep 6, 2026
3Partial evidenceNew Brighton, MN, United StatesHQ checked Sep 6, 202611-5018 contacts →

“Verterra Energy is reimagining how to harness the power of flowing water on our planet.”

Source: company website · checked Sep 6, 2026
4Partial evidenceNew Bedford, MA, United StatesHQ checked Sep 6, 202611-5012 contacts →

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

Source: company website · checked Sep 6, 2026
5Strong evidenceNew York, NY, United StatesHQ checked Sep 6, 202611-5012 contacts →

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

Source: company website · checked Sep 6, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-1011 contacts →

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

Source: company website · checked Sep 6, 2026
7Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-5011 contacts →

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

Source: company website · checked Sep 6, 2026
8Indirect evidenceOakland, CA, United StatesHQ checked Sep 6, 20261-1010 contacts →

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

Source: company website · checked Sep 6, 2026
9Partial evidenceHonolulu, HI, United StatesHQ checked Sep 6, 20261-105 contacts →

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

Source: company website · checked Sep 6, 2026
10Indirect evidenceTemecula, CA, United StatesHQ checked Sep 6, 20261-105 contacts →
Source: company website · checked Sep 6, 2026
11Partial evidenceSanta Barbara, CA, United StatesHQ checked Sep 6, 202611-504 contacts →

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

Source: company website · checked Sep 6, 2026
12Partial evidenceStony Brook, NY, United StatesHQ checked Sep 6, 20261-102 contacts →

“Leviathan Energy was formed in 2006 in order to provide game changing technologies, which will transform the renewable energy market on a global scale.”

Source: company website · checked Sep 6, 2026
13Partial evidenceJuneau, AK, United StatesHQ checked Sep 6, 20261-102 contacts →

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

Source: company website · checked Sep 6, 2026

Showing 13 of 38 tidal energy companies based in the United States

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Tidal energy companies based in the United States at a glance

As of Sep 6, 2026
38.6%Verified-email coverage
45.2%Mobile-number coverage
6.0Average contacts per company
1-10Median size (employees)
7.9%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
9

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 tidal energy 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 “tidal energy 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 tidal energy 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 tidal energy 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, 88 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 6, 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 tidal energy 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 tidal energy companies are there based in the United States?

RevenueBase identified 38 tidal energy 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?

ORPC, headquartered in Portland, tops this list with the largest team on record.

Which city has the most tidal energy companies?

New York leads with 3 headquartered companies, followed by Santa Barbara (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 the top results, verified emails and direct dials included. Upgrading unlocks all 88 verified decision-maker contacts tracked across these 38 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 6, 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.