Company lists · Data refreshed September 2026

Top 25 Municipal infrastructure construction companies based in the United Kingdom

Name: Municipal infrastructure construction 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 17, 2026 279 companies tracked

RevenueBase identified 279 municipal infrastructure construction companies headquartered in the United Kingdom as of September 2026 and tracks 9,156 professional contacts across them, including 3,013 with verified work emails. London is the largest hub.

This list covers municipal infrastructure construction 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 17, 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 17, 2026 86% judged on-target in blind review

279Companies

9,156Contacts tracked

3,013Verified emails

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The 25 largest municipal infrastructure construction companies based in the United Kingdom

Ranked by team size

Top 25 of 279 municipal infrastructure construction companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to municipal infrastructure construction 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	Murphy	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,095 contacts →
	Strong 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 17, 2026
2	FM Conway LTD	Partial evidence	Sevenoaks, United KingdomHQ checked Sep 17, 2026	1,001-5,000	974 contacts →
	Partial 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 17, 2026
3	Colas LTD	Strong evidence	Birmingham Business Park, United KingdomHQ checked Sep 17, 2026	1,001-5,000	459 contacts →
	Strong evidence “Colas is a world leader in the construction and maintenance of transport infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
4	Alun Griffiths Contractors LTD	Indirect evidence	Abergavenny, United KingdomHQ checked Sep 17, 2026	201-500	412 contacts →
	Indirect 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 17, 2026
5	Natta Building Company LTD	Partial evidence	Crondall, United KingdomHQ checked Sep 17, 2026	201-500	160 contacts →
	Partial evidence “Trading for over 50 years, Natta as a Principal Contractor specialises in civil engineering projects comprising section 278 and 38 infrastructure roads, sewers and services…” Source: RevenueBase Database · checked Sep 17, 2026
6	Marlborough Highways	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 17, 2026	201-500	145 contacts →
	Indirect evidence “Marlborough is a dynamic, independent civil engineering company with 30 years’ experience in every aspect of traditional and contemporary civil engineering work.” Source: RevenueBase Database · checked Sep 17, 2026
7	Severn Trent Services	Partial evidence	Coventry, United KingdomHQ checked Sep 17, 2026	1,001-5,000	137 contacts →
	Partial evidence “Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…” Source: RevenueBase Database · checked Sep 17, 2026
8	Mackenzie Construction	Strong evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	201-500	136 contacts →
	Strong evidence “Mackenzie Construction is a contractor positioned to design and construct infrastructure and building assets for public and private sector clients.” Source: RevenueBase Database · checked Sep 17, 2026
9	Envolve Infrastructure	Indirect evidence	Cardiff Road, United KingdomHQ checked Sep 17, 2026	201-500	136 contacts →
	Indirect evidence “We’re envolve, specialist civil engineers.” Source: RevenueBase Database · checked Sep 17, 2026
10	Roughton International LTD	Indirect evidence	Chandlers Ford, United KingdomHQ checked Sep 17, 2026	51-200	132 contacts →
	Indirect evidence “Founded in 1952, Roughton is a leading multidisciplinary consultancy delivering projects in Africa, Asia, Eastern Europe, UK, Latin America, the Caribbean and South Pacific.” Source: RevenueBase Database · checked Sep 17, 2026
11	Centregreat	Partial evidence	Bridgend, United KingdomHQ checked Sep 17, 2026	201-500	113 contacts →
	Partial evidence “Welcome to the Centregreat Group Centregreat is a well-established, high quality, infrastructure services provider, proud to serve Clients across a number of disciplines.” Source: RevenueBase Database · checked Sep 17, 2026
12	Doocey Group	Strong evidence	Tipton, United KingdomHQ checked Sep 17, 2026	201-500	105 contacts →
	Strong evidence “Doocey Group Utility Infrastructure Contractor operating nationally in the construction Industry.” Source: RevenueBase Database · checked Sep 17, 2026
13	Mcphillips Wellington Limited	Indirect evidence	Telford, United KingdomHQ checked Sep 17, 2026	201-500	103 contacts →
	Indirect evidence “McPhillips (Wellington) Limited is an award winning civil engineering and building contractor that has built a strong reputation for providing outstanding solutions to public and…” Source: RevenueBase Database · checked Sep 17, 2026
14	Associated Asphalt	Indirect evidence	Heathrow, United KingdomHQ checked Sep 17, 2026	51-200	84 contacts →
	Indirect evidence “Associated Asphalt Contracting Ltd is an established high-quality civil engineering enterprise offering fully comprehensive solutions to the highways, airfield and road…” Source: RevenueBase Database · checked Sep 17, 2026
15	Adman Group	Partial evidence	Omagh, United KingdomHQ checked Sep 17, 2026	51-200	71 contacts →
	Partial evidence “The Adman group of companies is a leading provider of civil engineering and construction services with a proven track record of service delivery for both public and private sector…” Source: RevenueBase Database · checked Sep 17, 2026
16	SWH	Indirect evidence	Exeter, United KingdomHQ checked Sep 17, 2026	201-500	62 contacts →
	Indirect evidence “Our origins are in highway maintenance as a new joint venture company, formed in 1995 by Colas Ltd and Eurovia UK Ltd specifically to win the Devon County Council highways…” Source: RevenueBase Database · checked Sep 17, 2026
17	Peter Duffy Limited	Strong evidence	Wakefield, United KingdomHQ checked Sep 17, 2026	201-500	58 contacts →
	Strong evidence “Peter Duffy Ltd (a United Infrastructure Group company) is a civil engineering, construction, utilities and plant hire company with a track record for quality and service since…” Source: RevenueBase Database · checked Sep 17, 2026
18	CBL Clive Barford Limited	Indirect evidence	Horton Heath, United KingdomHQ checked Sep 17, 2026	51-200	47 contacts →
	Indirect evidence “CLIVE BARFORD LIMITED is a Civil Engineering company located in Dumpers Drove, Horton Heath, HAMPSHIRE, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
19	HA Civils	Partial evidence	Liverpool, United KingdomHQ checked Sep 17, 2026	51-200	45 contacts →
	Partial evidence “HA Civils is a leading Civil Engineering and Infrastructure Services contractor continuously delivering the best option for clients through innovation and excellence, building…” Source: RevenueBase Database · checked Sep 17, 2026
20	George COX LTD	Indirect evidence	Bolton, United KingdomHQ checked Sep 17, 2026	51-200	44 contacts →
	Indirect evidence “We are a leading North West Highways and Civils Contractor with 75 years' experience of delivering long term sustainable solutions.” Source: RevenueBase Database · checked Sep 17, 2026
21	Kelly Formwork UK LTD	Partial evidence	Essex, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “Kelly Formwork UK Ltd have established themselves as a leading contractor in the field of Civil Engineering, Water Infrastructure and major Highways projects.” Source: RevenueBase Database · checked Sep 17, 2026
22	FOX Building & Engineering LTD	Indirect evidence	Omagh, United KingdomHQ checked Sep 17, 2026	501-1,000	41 contacts →
	Indirect evidence “Fox Contracts, founded in 1997, continue delivering landmark projects to the highest standards.” Source: RevenueBase Database · checked Sep 17, 2026
23	RINEY	Indirect evidence	Bow, United KingdomHQ checked Sep 17, 2026	201-500	40 contacts →
	Indirect evidence “J B Riney & Co Ltd is a long established Civil Engineering company who over the years has built an enviable reputation for reliability and quality workmanship.” Source: RevenueBase Database · checked Sep 17, 2026
24	ERG International Group	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	34 contacts →
	Indirect evidence “Since incorporation in 1972, we have completed numerous significant projects in the power, water and transportation sectors.” Source: RevenueBase Database · checked Sep 17, 2026
25	Agetur UK Limited	Indirect evidence	Brackley, United KingdomHQ checked Sep 17, 2026	201-500	34 contacts →
	Indirect evidence “Welcome to Agetur UK Agetur UK Limited is one of the leading civil engineering companies in the UK.” Source: RevenueBase Database · checked Sep 17, 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: municipal infrastructure construction 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 municipal infrastructure construction companies.
Partial evidence: Its own public description names part of municipal infrastructure construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal infrastructure construction 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 279 municipal infrastructure construction companies based in the United Kingdom

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Municipal infrastructure construction companies based in the United Kingdom at a glance

As of Sep 17, 2026

32.9%Verified-email coverage

32.8Average contacts per company

11-50Median size (employees)

12.5%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

127

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 279 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 municipal infrastructure construction 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 “municipal infrastructure construction 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 municipal infrastructure construction 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 municipal infrastructure construction 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, 3,013 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 17, 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.

Municipal infrastructure construction companies by metro

Municipal infrastructure construction companies in London35

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 municipal infrastructure construction 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 municipal infrastructure construction companies are there based in the United Kingdom?

RevenueBase identified 279 municipal infrastructure construction 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?

Murphy, headquartered in London, tops this list with the largest team on record.

Which city has the most municipal infrastructure construction companies?

London leads with 35 headquartered companies, followed by Glasgow (6) and Bolton (4).

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 3,013 verified decision-maker contacts tracked across these 279 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 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 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.