Company lists · Data refreshed September 2026

Top 25 Utility engineering companies based in the United Kingdom

Name: Utility engineering companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 563 companies tracked

RevenueBase identified 563 utility engineering companies headquartered in the United Kingdom as of September 2026 and tracks 48,401 professional contacts across them, including 16,718 with verified work emails. London is the largest hub.

This list covers utility engineering companies headquartered in the United Kingdom, 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 19, 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 19, 2026 86% judged on-target in blind review

563Companies

48,401Contacts tracked

16,718Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest utility engineering companies based in the United Kingdom

Ranked by team size

Top 25 of 563 utility engineering companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to utility engineering 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Atkins	Indirect evidence	Epsom, United KingdomHQ checked Sep 19, 2026	10001+	9,297 contacts →
	Indirect evidence “Atkins is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 19, 2026
2	RPS	Partial evidence	Abingdon, United KingdomHQ checked Sep 19, 2026	5,001-10,000	4,684 contacts →
	Partial evidence “Founded in 1970, RPS is part of Tetra Tech, a leading global provider of consulting and engineering services.” Source: RevenueBase Database · checked Sep 19, 2026
3	Costain Group PLC	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	3,785 contacts →
	Indirect evidence “Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet thrive.” Source: RevenueBase Database · checked Sep 19, 2026
4	Murphy	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	3,095 contacts →
	Partial evidence “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
5	OCU	Strong evidence	Stockport, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,578 contacts →
	Strong evidence “OCU provides end-to-end infrastructure engineering in the utilities, digital, and energy markets, specialising in safely and efficiently delivering complex client requirements.” Source: RevenueBase Database · checked Sep 19, 2026
6	Clancy	Indirect evidence	Harefield, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,218 contacts →
	Indirect evidence “The Clancy Group was founded in 1958 by Michael Clancy as M.J.” Source: RevenueBase Database · checked Sep 19, 2026
7	Faithful Gould	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,194 contacts →
	Indirect evidence “Faithful+Gould is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 19, 2026
8	Penspen	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,007 contacts →
	Indirect evidence “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
9	FM Conway LTD	Indirect evidence	Sevenoaks, United KingdomHQ checked Sep 19, 2026	1,001-5,000	974 contacts →
	Indirect evidence “FM Conway is a leading infrastructure services company delivering vital services in transportation, the built environment and open spaces for communities and businesses.” Source: RevenueBase Database · checked Sep 19, 2026
10	MWH Treatment	Indirect evidence	Stockport, United KingdomHQ checked Sep 19, 2026	1,001-5,000	879 contacts →
	Indirect evidence “MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Source: RevenueBase Database · checked Sep 19, 2026
11	Amcogiffen	Indirect evidence	Barnsley, United KingdomHQ checked Sep 19, 2026	1,001-5,000	845 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 19, 2026
12	Binnies	Indirect evidence	Redhill, United KingdomHQ checked Sep 19, 2026	501-1,000	842 contacts →
	Indirect evidence “Together with our strategic partners, we can address everything from supporting vulnerable customers, water quality, asset performance and leak detection, to integrated planning…” Source: RevenueBase Database · checked Sep 19, 2026
13	Systra UK & Ireland	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Helping the world move forward with confidence.” Source: RevenueBase Database · checked Sep 19, 2026
14	Freedom	Partial evidence	Leeds, United KingdomHQ checked Sep 19, 2026	1,001-5,000	664 contacts →
	Partial evidence “Freedom is a leading provider of facilities and power engineering services.” Source: RevenueBase Database · checked Sep 19, 2026
15	Dalcour Maclaren	Indirect evidence	Chesterton, United KingdomHQ checked Sep 19, 2026	501-1,000	589 contacts →
	Indirect evidence “Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Source: RevenueBase Database · checked Sep 19, 2026
16	Aureos	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	583 contacts →
	Partial evidence “Aureos is a multi-disciplinary energy, transport networks specialist and engineering services provider, spanning the design, engineering, installation, maintenance, and crisis…” Source: RevenueBase Database · checked Sep 19, 2026
17	Waterman Group	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	563 contacts →
	Partial evidence “Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…” Source: RevenueBase Database · checked Sep 19, 2026
18	Fairhurst	Indirect evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	201-500	437 contacts →
	Indirect evidence “Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: RevenueBase Database · checked Sep 19, 2026
19	Fichtner Consulting Engineers LTD	Partial evidence	Stockport, United KingdomHQ checked Sep 19, 2026	51-200	418 contacts →
	Partial evidence “Fichtner is one of the world's leading independent engineering consultancy firms.” Source: RevenueBase Database · checked Sep 19, 2026
20	Alun Griffiths Contractors LTD	Strong evidence	Abergavenny, United KingdomHQ checked Sep 19, 2026	201-500	412 contacts →
	Strong evidence “Welcome to / Croeso i Griffiths We are a sustainable civil engineering contractor that helps connect communities through road, rail, water, and utilities.” Source: RevenueBase Database · checked Sep 19, 2026
21	Sapphire Utility Solutions LTD	Partial evidence	Bamber Bridge, United KingdomHQ checked Sep 19, 2026	1,001-5,000	324 contacts →
	Partial evidence “Sapphire Utility Solutions has quickly become a trusted name in the utility, transport and highways sectors, known for our capabilities in delivering innovative solutions to meet…” Source: RevenueBase Database · checked Sep 19, 2026
22	Dyer & Butler	Partial evidence	Southampton, United KingdomHQ checked Sep 19, 2026	501-1,000	266 contacts →
	Partial evidence “Founded in 1979, Dyer & Butler is a multi-disciplined engineering services specialist focused on transport infrastructure including airports, rail and underground.” Source: RevenueBase Database · checked Sep 19, 2026
23	Power On	Partial evidence	Coventry, United KingdomHQ checked Sep 19, 2026	201-500	249 contacts →
	Partial evidence “All Utilities.” Source: RevenueBase Database · checked Sep 19, 2026
24	UKPS	Indirect evidence	Stonehouse, United KingdomHQ checked Sep 19, 2026	501-1,000	236 contacts →
	Indirect evidence “UKPS now operating as Last Mile across Great Britain We’re excited to announce that from 16th March 2026, UKPS is formally adopting the Last Mile name.” Source: RevenueBase Database · checked Sep 19, 2026
25	Eric Wright Water LTD	Partial evidence	Preston, United KingdomHQ checked Sep 19, 2026	201-500	193 contacts →
	Partial evidence “Eric Wright Water Ltd (part of the Eric Wright Group) is a multi-disciplinary engineering and construction company working in the water and wastewater industry.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: utility engineering companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names utility engineering companies.
Partial evidence: Its own public description names part of utility engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility engineering companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 563 utility engineering companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 16,718 reachable decision-makers.

Free signup · no credit card

View the full list →

Utility engineering companies based in the United Kingdom at a glance

As of Sep 19, 2026

34.5%Verified-email coverage

86.0Average contacts per company

11-50Median size (employees)

16.2%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

205

11-50

176

51-200

104

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 563 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 utility engineering 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 Kingdom whose own description of what they do matches “utility engineering 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 utility engineering 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 utility engineering companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 16,718 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 19, 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.

Utility engineering companies by metro

Utility engineering companies in London91

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 utility engineering 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 utility engineering companies are there based in the United Kingdom?

RevenueBase identified 563 utility engineering companies headquartered in the United Kingdom 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?

Atkins, headquartered in Epsom, tops this list with the largest team on record.

Which city has the most utility engineering companies?

London leads with 91 headquartered companies, followed by Manchester (24) and Glasgow (10).

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 16,718 verified decision-maker contacts tracked across these 563 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 563 utility engineering companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Utility engineering companies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Utility engineering companies lists · New lists

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.