Company lists · Data refreshed November 2026

Top 25 Hydropower companies based in the United States

This directory lists 110 hydropower companies based in the United States, with contact records for 21,053 people and 9,808 email addresses. New York is the single most-represented city among the companies listed, and the directory was updated in November 2026.

Hydropower companies develop, own, operate, or maintain facilities that generate electricity from moving or stored water. This list covers companies that develop, own, operate, manufacture equipment for, or provide services to hydropower generation facilities. Ranked by team size, largest first. Data current as of November 5, 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 Nov 5, 2026 86% judged on-target in blind review
110Companies
21,053Contacts tracked
9,808Verified emails
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The 25 largest hydropower companies based in the United States

Ranked by team size
Top 25 of 110 hydropower companies based in the United States, ranked by team size, largest first. Data refreshed Nov 5, 2026. RevenueBase Smart Search rates how each company's information relates to hydropower 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
1Indirect evidenceBaltimore, MD, United StatesHQ checked Nov 5, 202610001+10,040 contacts →

Indirect evidence

“Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…”

Source: RevenueBase Database · checked Nov 5, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Nov 5, 20261,001-5,0002,199 contacts →

Indirect evidence

“A business unit of Constellation (NASDAQ: CEG), Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with operations in…”

Source: RevenueBase Database · checked Nov 5, 2026
3Indirect evidenceMoncks Corner, SC, United StatesHQ checked Nov 5, 20261,001-5,0001,442 contacts →

Indirect evidence

“Santee Cooper is South Carolina’s largest power producer, the largest Green Power generator and the ultimate source of electricity for 2 million people across the state.”

Source: RevenueBase Database · checked Nov 5, 2026
4Indirect evidenceChouteau, OK, United StatesHQ checked Nov 5, 2026501-1,000388 contacts →

Indirect evidence

“GRDA utilizes a diverse portfolio of electric generation assets to keep rates low and reliability high.”

Source: RevenueBase Database · checked Nov 5, 2026
5Indirect evidenceDedham, MA, United StatesHQ checked Nov 5, 2026201-500154 contacts →

Indirect evidence

“Atlantic Power is an independent power producer that owns power generation assets in eleven states in the United States and two provinces in Canada.”

Source: RevenueBase Database · checked Nov 5, 2026
6Indirect evidenceBethesda, MD, United StatesHQ checked Nov 5, 2026201-500140 contacts →

Indirect evidence

“Eagle Creek Renewable Energy was founded in 2010 to acquire, enhance and operate small hydroelectric power facilities.”

Source: RevenueBase Database · checked Nov 5, 2026
7Indirect evidenceMerced, CA, United StatesHQ checked Nov 5, 202651-200117 contacts →

Indirect evidence

“Merced Irrigation District owns, operates and maintains the New Exchequer and McSwain dams, reservoirs, and hydroelectric facilities.”

Source: RevenueBase Database · checked Nov 5, 2026
8Indirect evidenceMarquette, MI, United StatesHQ checked Nov 5, 202651-20093 contacts →

Indirect evidence

“Upper Peninsula Power Company (UPPCO) is a regulated electric utility delivering safe, reliable energy to approximately customers in 10 counties across Michigan's Upper Peninsula.”

Source: RevenueBase Database · checked Nov 5, 2026
9Indirect evidenceYork, PA, United StatesHQ checked Nov 5, 202651-20076 contacts →

Indirect evidence

“Engineering Our focus is to create designs that maximize turbine capacity and efficiency while eliminating cavitation to meet our customers’ needs.”

Source: RevenueBase Database · checked Nov 5, 2026
10Indirect evidenceNewark, NJ, United StatesHQ checked Nov 5, 20261,001-5,00058 contacts →

Indirect evidence

“PSEG Power LLC is an utilities company based out of 80 PARK PLAZA, T-25, Newark, New Jersey, United States.”

Source: RevenueBase Database · checked Nov 5, 2026
11Indirect evidenceAnchorage, AK, United StatesHQ checked Nov 5, 202651-20038 contacts →

Indirect evidence

“The Alaska Energy Authority is Alaska’s trusted leader in reducing energy costs and advancing statewide energy policy.”

Source: RevenueBase Database · checked Nov 5, 2026
12Indirect evidenceAlameda, CA, United StatesHQ checked Nov 5, 202611-5035 contacts →

Indirect evidence

“Natel Energy unlocks stranded hydro resources with patented FishSafe™ turbine designs that fit directly into existing civil works across Francis, Kaplan, and propeller…”

Source: RevenueBase Database · checked Nov 5, 2026
13Indirect evidenceMarquette, United StatesHQ checked Nov 5, 202651-20032 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
14Indirect evidenceAtlanta, GA, United StatesHQ checked Nov 5, 202611-5030 contacts →

Indirect evidence

“Emrgy designs and deploys modular, scalable hydroelectric solutions without the need for construction or dams.”

Source: RevenueBase Database · checked Nov 5, 2026
15Indirect evidenceAnchorage, United StatesHQ checked Nov 5, 202611-5028 contacts →

Indirect evidence

“TDX Power is a leading energy-generation and energy-services provider.”

Source: RevenueBase Database · checked Nov 5, 2026
16Indirect evidenceBend, OR, United StatesHQ checked Nov 5, 202611-5027 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026
17Strong evidencePittsburgh, PA, United StatesHQ checked Nov 5, 202611-5026 contacts →

Strong evidence

“Current Hydro is a hydropower developer, owner, and operator focused on unlocking clean energy from America’s existing infrastructure.”

Source: RevenueBase Database · checked Nov 5, 2026
18Strong evidenceWestborough, MA, United StatesHQ checked Nov 5, 202651-20023 contacts →

Strong evidence

“GRH is New England’s largest producer of conventional hydropower.”

Source: RevenueBase Database · checked Nov 5, 2026
19Strong evidenceWellington, CO, United StatesHQ checked Nov 5, 202651-20021 contacts →

Strong evidence

“Obermeyer Hydro is a leading worldwide provider of hydropower and water-control equipment as well as inflatable rubber structures for industrial applications.”

Source: RevenueBase Database · checked Nov 5, 2026
20Indirect evidenceNew Brighton, MN, United StatesHQ checked Nov 5, 202611-5018 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Nov 5, 2026
21Indirect evidenceYork, ID, United StatesHQ checked Nov 5, 202651-20018 contacts →

Indirect evidence

“Hydro Consulting and Maintenance Services (HCMS) is now a division of Thompson Construction Group, Inc.”

Source: RevenueBase Database · checked Nov 5, 2026
22Indirect evidenceSomerville, MA, United StatesHQ checked Nov 5, 20261-1017 contacts →

Indirect evidence

“GenH is a hydroelectric technology development company focused on advanced modular power generation.”

Source: RevenueBase Database · checked Nov 5, 2026
23Strong evidenceWest Palm Beach, PA, United StatesHQ checked Nov 5, 202611-5015 contacts →

Strong evidence

“Rye Development is advancing America’s next generation of pumped storage hydropower, the largest and most proven form of energy storage.”

Source: RevenueBase Database · checked Nov 5, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Nov 5, 202611-5014 contacts →

Indirect evidence

“Coevo Energy, Inc.”

Source: RevenueBase Database · checked Nov 5, 2026
25Indirect evidenceCentralia, WA, United StatesHQ checked Nov 5, 202611-5013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 5, 2026

Showing 25 of 110 hydropower companies based in the United States

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Hydropower companies based in the United States at a glance

As of Nov 5, 2026
46.6%Verified-email coverage
191.4Average contacts per company
11-50Median size (employees)
4.5%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
37
51-200
17
201-500
2
501-1,000
2
1,001-5,000
6
5,001-10,000
1
10001+
2

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 110 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 hydropower 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 “hydropower 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 hydropower 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 hydropower 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, 9,808 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 November 5, 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

How many hydropower companies are based in the United States?

110 hydropower companies are listed based in the United States.

How many contacts are available for hydropower companies?

The directory includes 21,053 contact records and 9,808 email addresses for the listed hydropower companies.

Which city has the most hydropower companies?

New York is the single most-represented city among the companies on this list.

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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.