Company lists · Data refreshed October 2026

Top 25 Energy development companies based in the United Kingdom

RevenueBase identified 548 company matches for energy development companies associated with the United Kingdom as of October 2026 and tracks 56,838 professional contacts across them, including 18,243 with verified work emails. London is the largest hub.

This list covers company matches for energy development companies 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 October 12, 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 12, 2026 How this list was built
548Companies
56,838Contacts tracked
18,243Verified emails
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The 25 largest energy development companies based in the United Kingdom

Ranked by team size
Top 25 of 548 company matches for energy development companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 matchNewcastle Upon Tyne, United KingdomHQ recorded Oct 12, 202610001+20,783 contacts →

Exact match

“TechnipFMC is a leading technology provider to the traditional and new energies industry, delivering fully integrated projects, products, and services.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2Exact matchAberdeen, United KingdomHQ recorded Oct 12, 202610001+15,181 contacts →

Exact match

“Wood Group has combined with Amec Foster Wheeler to form a new global leader in the delivery of project, engineering and technical services to energy and industrial markets.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchKings Langley, United KingdomHQ recorded Oct 12, 20261,001-5,0003,875 contacts →

Exact match

“RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 12, 20261,001-5,0001,116 contacts →

Exact match

“Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 12, 20261,001-5,0001,056 contacts →

Exact match

“Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchDyce, United KingdomHQ recorded Oct 12, 20261,001-5,0001,019 contacts →

Exact match

“We are OEG, a leading energy solutions business providing mission critical infrastructure assets, technologies and services to the global energy industry.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchStockton On Tees, United KingdomHQ recorded Oct 12, 2026501-1,000695 contacts →

Exact match

“px Group is a fully integrated infrastructure solutions business which delivers net zero and stakeholder success through elite performance in the safety, availability, reliability…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 12, 2026501-1,000593 contacts →

Exact match

“Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchCastle Douglas, United KingdomHQ recorded Oct 12, 2026501-1,000517 contacts →

Exact match

“Natural Power is a leading independent consultancy and service provider for the renewable energy sector.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchAberdeen, United KingdomHQ recorded Oct 12, 2026501-1,000453 contacts →

Exact match

“We are a pioneering energy transition company with a portfolio and ambitions that span the breadth of the energy transition.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchStockport, United KingdomHQ recorded Oct 12, 202651-200427 contacts →

Exact match

“Fichtner is one of the world's leading independent engineering consultancy firms.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 12, 2026501-1,000423 contacts →

Exact match

“Cubico Sustainable Investments is one of the world’s largest privately-owned renewable energy companies, leveraging our strong local presence with a unique combination of in-house…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Oct 12, 2026201-500345 contacts →

Exact match

“Savannah Energy PLC is a British independent energy company focused around the delivery of Projects that Matter in Africa.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 12, 2026501-1,000276 contacts →

Exact match

“INTEC Energy Solutions delivers best-in-class services in Engineering, Procurement, Construction (EPC), Battery Energy Storage Systems (BESS), Manufacturing, Project Development…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 12, 2026201-500227 contacts →

Exact match

“With a capacity of 3.5GW, we are one of the leading power companies in the UK and Ireland.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchThornaby-on-tees, United KingdomHQ recorded Oct 12, 2026201-500186 contacts →

Exact match

“Eastgate Engineering is an Electrical and Instrumentation contractor that delivers complex, high-risk infrastructure projects with cost certainty, without compromising safety or…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17Exact matchExeter, United KingdomHQ recorded Oct 12, 202651-200178 contacts →

Exact match

“Ethical Power Group launched in the UK in 2010.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 12, 2026201-500173 contacts →

Exact match

“CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 12, 2026201-500167 contacts →

Exact match

“At Octopus Energy Generation, we’re building green power for the future, from large-scale solar to onshore and offshore wind, and innovative initiatives like the Fan Club.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20Exact matchShepton Mallet, United KingdomHQ recorded Oct 12, 202651-200162 contacts →

Exact match

“Clean energy, powered with purpose.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21Exact matchEdinburgh, United KingdomHQ recorded Oct 12, 202651-200145 contacts →

Exact match

“Flotation Energy Ltd delivers clean, green, renewable energy by using our expertise in floating and fixed offshore wind and the energy transition, supporting achievement of…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 12, 2026201-500113 contacts →

Exact match

“SUNEL GROUP is a globally recognized EPC Contractor and Developer for Solar projects.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23Exact matchIpswich, United KingdomHQ recorded Oct 12, 2026201-500107 contacts →

Exact match

“Haven Power is rebranding as Drax and we’ll soon be retiring this account.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24Exact matchBrinkworth, United KingdomHQ recorded Oct 12, 202651-200106 contacts →

Exact match

“BELECTRIC UK is part of BELECTRIC, one of Europe's leading EPC service providers in the development, construction, and operation of solar power plants.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 12, 202651-200100 contacts →

Exact match

“Highview is a leading energy infrastructure business.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 25 of 548 energy development companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 18,243 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy development companies based in the United Kingdom at a glance

As of Oct 12, 2026
32.1%Verified-email coverage
103.7Average contacts per company
1-10Median size (employees)
32.5%Largest-city concentration · London
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
273
11-50
168
51-200
62
201-500
19
501-1,000
10
1,001-5,000
8
5,001-10,000
2
10001+
3

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 548 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 “energy development companies” 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 18,243 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 12, 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.

Energy development companies by metro

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 “energy development companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy development companies are there based in the United Kingdom?

RevenueBase identified 548 company matches for energy development companies associated with the United Kingdom 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?

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

Which city has the most energy development companies?

London leads with 178 company records, followed by Bristol (11) and Edinburgh (11).

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 18,243 professional contacts with verified work emails tracked across these 548 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 12, 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.