Company lists · Data refreshed September 2026

Top 25 Road widening contractors based in the United Kingdom

Name: Road widening 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 816 companies tracked

RevenueBase identified 816 road widening contractors headquartered in the United Kingdom as of September 2026 and tracks 13,427 professional contacts across them, including 4,047 with verified work emails. London is the largest hub.

This list covers road widening contractors 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

816Companies

13,427Contacts tracked

4,047Verified emails

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The 25 largest road widening contractors based in the United Kingdom

Ranked by team size

Top 25 of 816 road widening contractors 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 road widening contractors: 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	FM Conway LTD	Indirect evidence	Sevenoaks, United KingdomHQ checked Sep 17, 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 17, 2026
2	M&j Evans Construction Limited	Indirect evidence	Aldridge, United KingdomHQ checked Sep 17, 2026	201-500	599 contacts →
	Indirect evidence “M&J Evans Construction Ltd, one of the largest groundworks and civil engineering business has been based in the West Midlands since 2003.” Source: RevenueBase Database · checked Sep 17, 2026
3	Colas LTD	Indirect evidence	Birmingham Business Park, United KingdomHQ checked Sep 17, 2026	1,001-5,000	459 contacts →
	Indirect 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	Strong evidence	Abergavenny, United KingdomHQ checked Sep 17, 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 17, 2026
5	C3 Construction LTD	Indirect evidence	Leicester, United KingdomHQ checked Sep 17, 2026	201-500	284 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
6	Volkerlaser	Partial evidence	Worcester, United KingdomHQ checked Sep 17, 2026	51-200	244 contacts →
	Partial evidence “VolkerLaser is the UK's leading multi-functional contractor.” Source: RevenueBase Database · checked Sep 17, 2026
7	Breheny Civil Engineering	Indirect evidence	Ipswich, United KingdomHQ checked Sep 17, 2026	201-500	208 contacts →
	Indirect evidence “From formation in 1963 to today, we have grown to provide civil engineering services to almost two thirds of the country from our offices in Suffolk, Cambridgeshire, Yorkshire…” Source: RevenueBase Database · checked Sep 17, 2026
8	RJ Mcleod Contractors Limited	Partial evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	201-500	172 contacts →
	Partial evidence “RJ McLeod stands as one of the country’s leading civil engineering and building contractors.” Source: RevenueBase Database · checked Sep 17, 2026
9	Natta Building Company LTD	Strong evidence	Crondall, United KingdomHQ checked Sep 17, 2026	201-500	160 contacts →
	Strong 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
10	The Tamdown Group	Indirect evidence	Braintree, United KingdomHQ checked Sep 17, 2026	201-500	158 contacts →
	Indirect evidence “Tamdown is a market leading provider of infrastructure, groundworks and civil engineering services for residential, commercial and public sector developments in the South East of…” Source: RevenueBase Database · checked Sep 17, 2026
11	ISC	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	152 contacts →
	Indirect evidence “At ISC we’re constructing a legacy of excellence in enabling works, earthworks and civil engineering projects across the UK.” Source: RevenueBase Database · checked Sep 17, 2026
12	Rendel Limited	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	150 contacts →
	Indirect evidence “Rendel celebrated its 185th Anniversary in 2024, making us one of the oldest civil and structural engineering companies in the UK.” Source: RevenueBase Database · checked Sep 17, 2026
13	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
14	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
15	Bridgebank LTD	Partial evidence	Mansfield, United KingdomHQ checked Sep 17, 2026	51-200	118 contacts →
	Partial evidence “Bridgebank Ltd is a forward-thinking civil engineering and groundworks contractor, delivering high-quality construction services across both the public and private sectors.” Source: RevenueBase Database · checked Sep 17, 2026
16	Clugston Construction Limited	Partial evidence	Scunthorpe, United KingdomHQ checked Sep 17, 2026	501-1,000	114 contacts →
	Partial evidence “Clugston Construction is an award winning regional building and civil engineering contractor and a member of the privately owned Clugston Group, established over 80 years ago by…” Source: RevenueBase Database · checked Sep 17, 2026
17	A E Yates LTD	Partial evidence	Bolton, United KingdomHQ checked Sep 17, 2026	201-500	112 contacts →
	Partial evidence “A E Yates Ltd is a Bolton based £100m turnover Civil Engineering & Tunnelling Contractor, established in 1870, with a long standing reputation for successfully delivering works of…” Source: RevenueBase Database · checked Sep 17, 2026
18	CR Civil Engineering	Indirect evidence	Loughborough, United KingdomHQ checked Sep 17, 2026	201-500	107 contacts →
	Indirect evidence “CR Civil Engineering Ltd is based in the East Midlands and work throughout the UK.” Source: RevenueBase Database · checked Sep 17, 2026
19	Mcphillips Wellington Limited	Partial evidence	Telford, United KingdomHQ checked Sep 17, 2026	201-500	103 contacts →
	Partial 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
20	Associated Asphalt	Partial evidence	Heathrow, United KingdomHQ checked Sep 17, 2026	51-200	84 contacts →
	Partial 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
21	Mayo Civil Engineering Limited	Strong evidence	Rochdale, United KingdomHQ checked Sep 17, 2026	51-200	79 contacts →
	Strong evidence “Established in 2005, a comprehensive civil engineering and groundworks contractor, we work across a range of projects including, roads, sewers, drainage, foundations, new build…” Source: RevenueBase Database · checked Sep 17, 2026
22	Adman Group	Indirect evidence	Omagh, United KingdomHQ checked Sep 17, 2026	51-200	71 contacts →
	Indirect 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
23	Harringtons Builders PLC	Indirect evidence	Wembley, United KingdomHQ checked Sep 17, 2026	51-200	71 contacts →
	Indirect evidence “The Company was founded by Mr C.” Source: RevenueBase Database · checked Sep 17, 2026
24	DSD Construction	Indirect evidence	Carlisle, United KingdomHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “DSD Construction is a leading civil engineering company specialising in surfacing, cold milling, construction recycling, and sustainable products.” Source: RevenueBase Database · checked Sep 17, 2026
25	Quinn Groundworks & Construction LTD	Indirect evidence	Dunstable, United KingdomHQ checked Sep 17, 2026	201-500	67 contacts →
	Indirect evidence “Quinn Groundworks & Construction Ltd provide construction and groundworks specialty expertise to the Residential and infrastructure industries.” 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: road widening contractors. 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 road widening contractors.
Partial evidence: Its own public description names part of road widening contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name road widening contractors. 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 816 road widening contractors based in the United Kingdom

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Road widening contractors based in the United Kingdom at a glance

As of Sep 17, 2026

30.1%Verified-email coverage

16.5Average contacts per company

11-50Median size (employees)

6.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

275

11-50

322

51-200

154

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 816 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 road widening contractors, 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 “road widening contractors”. 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 road widening contractors), 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 road widening contractors, 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, 4,047 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.

Road widening contractors by metro

Road widening contractors in London56

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 road widening contractors, 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 road widening contractors are there based in the United Kingdom?

RevenueBase identified 816 road widening contractors 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?

FM Conway LTD, headquartered in Sevenoaks, tops this list with the largest team on record.

Which city has the most road widening contractors?

London leads with 56 headquartered companies, followed by Birmingham (10) 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 4,047 verified decision-maker contacts tracked across these 816 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.