Company lists · Data refreshed September 2026

Top 25 Power plant construction contractors based in the United Kingdom

Name: Power plant construction contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 132 companies tracked

RevenueBase identified 132 company matches for power plant construction contractors associated with the United Kingdom as of September 2026 and tracks 16,471 professional contacts across them, including 3,652 with verified work emails. London is the largest hub.

This list covers company matches for power plant construction contractors 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 September 17, 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 Sep 17, 2026 How this list was built

132Companies

16,471Contacts tracked

3,652Verified emails

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The 25 largest power plant construction contractors based in the United Kingdom

Ranked by team size

Top 25 of 132 company matches for power plant construction contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Atkins	Exact match	Epsom, United KingdomHQ recorded Sep 17, 2026	10001+	9,297 contacts →
	Exact match “Atkins is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	NEXOS	Exact match	Aberdeen, United KingdomHQ recorded Sep 17, 2026	501-1,000	446 contacts →
	Exact match “A new breed of engineering, procurement and construction (EPC) provider that is turning next-gen energy into operational reality, through innovative solutions, partnerships and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Ledwood Mechanical Engineering LTD	Exact match	Pembrokeshire, United KingdomHQ recorded Sep 17, 2026	501-1,000	266 contacts →
	Exact match “Ledwood is an independent engineering, fabrication and construction company specialising in the delivery of complex projects across the oil, gas, process and energy industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Intec Energy Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	242 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 · Sep 17, 2026 · View company records in RevenueBase
5	Framatome UK	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	201-500	181 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Eastgate Engineering	Exact match	Thornaby-on-tees, United KingdomHQ recorded Sep 17, 2026	201-500	163 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 · Sep 17, 2026 · View company records in RevenueBase
7	PN Daly Limited	Exact match	Rochdale, United KingdomHQ recorded Sep 17, 2026	501-1,000	141 contacts →
	Exact match “P.N.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Belectric UK Member Of Elevion Group	Exact match	Brinkworth, United KingdomHQ recorded Sep 17, 2026	51-200	95 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 · Sep 17, 2026 · View company records in RevenueBase
9	Copius Group	Exact match	Newtownabbey, United KingdomHQ recorded Sep 17, 2026	201-500	81 contacts →
	Exact match “Copius Group is a premier provider of construction and engineering services, delivering comprehensive solutions for offshore and onshore projects across the globe.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	N-Ergise	Exact match	Great Yarmouth, United KingdomHQ recorded Sep 17, 2026	51-200	76 contacts →
	Exact match “Providing innovative solutions to the Infrastructure, Energy Transition, Nuclear & Defence and Renewables sectors, Services include commissioning, decommissioning, hook-ups…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	JBA Engineering	Exact match	Wynyard, United KingdomHQ recorded Sep 17, 2026	11-50	63 contacts →
	Exact match “JBA are industry-leading consultants, providing flexible engineering and design solutions, procurement, and construction services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Kelvin Power Member Of Vinci Energies	Exact match	Leicester, United KingdomHQ recorded Sep 17, 2026	51-200	57 contacts →
	Exact match “Kelvin Power provides expert advice and design solutions to the global power industry and the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	JGC Engineering And Technical Services LTD	Exact match	Thurso, United KingdomHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “JGC is one of the UK's leading engineering companies with the breadth and depth of technical expertise to respond to the daily complex challenges of major engineering projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	GES Group	Exact match	Ballymena, United KingdomHQ recorded Sep 17, 2026	51-200	38 contacts →
	Exact match “Established over 40 years ago as Grants Electrical Services (NI) Ltd, we have grown into GES Group, a leading Electrical and Mechanical Engineering company, serving customers…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Enerfac Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	38 contacts →
	Exact match “Enerfac Solutions is a global leader in Engineering, Procurement, Construction, and Commissioning (EPCC), delivering innovative, reliable, and technologically advanced services…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Luton Engineering Services	Exact match	Manchester, United KingdomHQ recorded Sep 17, 2026	11-50	34 contacts →
	Exact match “LUTON ENGINEERING SERVICES is a civil engineering company based out of 6 Swan Street, Manchester, United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Integrity	Exact match	Aberdeen, United KingdomHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “We enable safe, reliable operations and reduced outages for energy assets across the globe through our people, our expertise, and our commitment to deliver Integrated Service…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	CDS Energy Services	Exact match	Hull, United KingdomHQ recorded Sep 17, 2026	51-200	33 contacts →
	Exact match “CDS Energy Services combines talented and experienced people with a state-of the art facility in the heart of the UK to provide full turnkey solutions to a range of blue chip…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Eesb Engineering Limited	Exact match	Birkenhead, United KingdomHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Target Site Services LTD	Exact match	Datchet, United KingdomHQ recorded Sep 17, 2026	51-200	30 contacts →
	Exact match “Established in 1989 Target Site Services are an Electrical & Mechanical Engineering Company who for over twenty-five years have been providing a first-class service to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Enisca	Exact match	Cookstown, United KingdomHQ recorded Sep 17, 2026	51-200	28 contacts →
	Exact match “Enisca is a multi-disciplinary design, engineering and construction business operating in the power and environmental sectors delivering innovative, sustainable and quality…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Gemec Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	26 contacts →
	Exact match “GEMEC’s main activity and expertise is the Engineering, Procurement and Construction of Renewable energy projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Power System Services LTD	Exact match	Chesterfield, United KingdomHQ recorded Sep 17, 2026	51-200	24 contacts →
	Exact match “Power System Services is an engineering company that has been providing Engineering solutions for heavy industry since 1996.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Switchon Power	Exact match	Stourbridge, United KingdomHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “SwitchOn Power is a specialized engineering company, focusing on renewable energy generation projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	EPS Construction LTD	Exact match	Swansea, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “EPS Construction is your full service engineering partner, offering solutions in your everyday needs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “power plant construction contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 132 power plant construction contractors based in the United Kingdom

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Power plant construction contractors based in the United Kingdom at a glance

As of Sep 17, 2026

22.2%Verified-email coverage

124.8Average contacts per company

11-50Median size (employees)

10.6%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 132 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 “power plant construction contractors” 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 3,652 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 September 17, 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 “power plant construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power plant construction contractors are there based in the United Kingdom?

RevenueBase identified 132 company matches for power plant construction contractors associated with the United Kingdom as of September 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?

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

Which city has the most power plant construction contractors?

London leads with 14 company records, followed by Aberdeen (5) and Bristol (4).

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 3,652 professional contacts with verified work emails tracked across these 132 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 September 17, 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.