Company lists · Data refreshed November 2026

Top 10 In-stream hydropower device makers based in the United Kingdom

RevenueBase identified 28 company matches for in-stream hydropower device makers associated with the United Kingdom as of November 2026 and tracks 144 professional contacts across them, including 74 with verified work emails. Glasgow is the largest hub.

This list covers company matches for in-stream hydropower device makers associated with the United Kingdom, 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 November 6, 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 Nov 6, 2026 How this list was built
28Companies
144Contacts tracked
74Verified emails
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The 10 largest in-stream hydropower device makers based in the United Kingdom

Ranked by team size
Top 10 of 28 company matches for in-stream hydropower device makers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchKirkwall, United KingdomHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Orbital Marine Power is an innovative Scottish engineering company focused on the development of a low-cost, predictable, scalable floating tidal stream technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBristol, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Proteus is an innovative, cutting-edge marine energy business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchKingston-upon-thames, United KingdomHQ recorded Nov 6, 20261-108 contacts →

Exact match

“VerdErg Renewable Energy Ltd has designed the Venturi-Enhanced Turbine Technology (VETT), a unique patented technology which uses venturi principles to concentrate the hydraulic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGlasgow, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Flex Marine Power Ltd is a marine renewable energy technology company located on the river Clyde on the west coast of Scotland near Glasgow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGlasgow, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“ANDRITZ Hydro Hammerfest is a market leader in the supply of turn-key tidal power arrays and associated electro-mechanical equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchManchester, United KingdomHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Our purpose is to make a positive impact on a global stage through making hydropower affordable and available for everyone with access to a flowing stream or river without any…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchThurso, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGrange-over-sands, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Aqua Power Technologies designs, develops and manufacturers innovative and environmentally sensitive systems for generating power from marine environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerkhamsted, United KingdomHQ recorded Nov 6, 20261-101 contacts →

Exact match

“HEIDRA LIMITED is a renewables & environment company based out of Berkhamsted, United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchOllerton, United KingdomHQ recorded Nov 6, 2026n/a1 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 10 of 28 in-stream hydropower device makers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 74 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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In-stream hydropower device makers based in the United Kingdom at a glance

As of Nov 6, 2026
51.4%Verified-email coverage
5.1Average contacts per company
1-10Median size (employees)
7.1%Largest-city concentration · Glasgow
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
2

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 28 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 Kingdom whose business descriptions match “in-stream hydropower device makers” 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 74 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 November 6, 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 “in-stream hydropower device makers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many in-stream hydropower device makers are there based in the United Kingdom?

RevenueBase identified 28 company matches for in-stream hydropower device makers associated with the United Kingdom as of November 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?

Orbital Marine Power LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most in-stream hydropower device makers?

Glasgow leads with 2 company records, followed by London (2) and Aberdeen (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 74 professional contacts with verified work emails tracked across these 28 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 November 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 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.