Company lists · Data refreshed September 2026

Top 25 Transportation engineering companies based in the United Kingdom

Name: Transportation 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 16, 2026 813 companies tracked

RevenueBase identified 813 transportation engineering companies headquartered in the United Kingdom as of September 2026 and tracks 54,922 professional contacts across them, including 18,441 with verified work emails. London is the largest hub.

This list covers transportation 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 16, 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 16, 2026 86% judged on-target in blind review

813Companies

54,922Contacts tracked

18,441Verified emails

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The 25 largest transportation engineering companies based in the United Kingdom

Ranked by team size

Top 25 of 813 transportation engineering companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to transportation 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	Mott Macdonald	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	10001+	19,072 contacts →
	Partial evidence “We are an engineering, management and development consultancy and one of the largest wholly employee-owned firms of our kind.” Source: RevenueBase Database · checked Sep 16, 2026
2	Costain Group PLC	Indirect evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
3	Murphy	Partial evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
4	Faithful Gould	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,194 contacts →
	Indirect evidence “Faithful+Gould is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 16, 2026
5	FM Conway LTD	Partial evidence	Sevenoaks, United KingdomHQ checked Sep 16, 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 16, 2026
6	Amcogiffen	Indirect evidence	Barnsley, United KingdomHQ checked Sep 16, 2026	1,001-5,000	845 contacts →
	Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 16, 2026
7	Systra UK & Ireland	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Helping the world move forward with confidence.” Source: RevenueBase Database · checked Sep 16, 2026
8	Aureos	Partial evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
9	Waterman Group	Partial evidence	London, United KingdomHQ checked Sep 16, 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 16, 2026
10	Colas LTD	Indirect evidence	Birmingham Business Park, United KingdomHQ checked Sep 16, 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 16, 2026
11	Fairhurst	Indirect evidence	Glasgow, United KingdomHQ checked Sep 16, 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 16, 2026
12	Alun Griffiths Contractors LTD	Partial evidence	Abergavenny, United KingdomHQ checked Sep 16, 2026	201-500	412 contacts →
	Partial 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 16, 2026
13	TRL	Indirect evidence	Wokingham, United KingdomHQ checked Sep 16, 2026	201-500	357 contacts →
	Indirect evidence “TRL is a team of expert scientists, engineers and specialists who work together with our clients and partners to Shape Transport TRL: • Publishes software that helps the world’s…” Source: RevenueBase Database · checked Sep 16, 2026
14	Dyer & Butler	Partial evidence	Southampton, United KingdomHQ checked Sep 16, 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 16, 2026
15	WJ	Indirect evidence	Newcastle-under-lyme, United KingdomHQ checked Sep 16, 2026	501-1,000	255 contacts →
	Indirect evidence “The UK’s leading road marking and highway safety business Delivering high-performance, award-winning solutions in the strategic road network, local authority, and off-highway…” Source: RevenueBase Database · checked Sep 16, 2026
16	Project Centre LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	201-500	190 contacts →
	Indirect evidence “Project Centre, part of Marston Holdings, is a multidisciplinary infrastructure and place consultancy shaping sustainable spaces across the UK.” Source: RevenueBase Database · checked Sep 16, 2026
17	Egis In The UK	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	156 contacts →
	Partial evidence “Egis is a leading global consulting, construction engineering and operating firm.” Source: RevenueBase Database · checked Sep 16, 2026
18	Rendel Limited	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	150 contacts →
	Partial 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 16, 2026
19	Mackenzie Construction	Indirect evidence	Glasgow, United KingdomHQ checked Sep 16, 2026	201-500	136 contacts →
	Indirect 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 16, 2026
20	Envolve Infrastructure	Indirect evidence	Cardiff Road, United KingdomHQ checked Sep 16, 2026	201-500	136 contacts →
	Indirect evidence “We’re envolve, specialist civil engineers.” Source: RevenueBase Database · checked Sep 16, 2026
21	Explore	Indirect evidence	Worksop, United KingdomHQ checked Sep 16, 2026	201-500	136 contacts →
	Indirect evidence “Explore is a specialist supplier of Transport and Plant Hire services to varied industries including construction, rail and aerospace.” Source: RevenueBase Database · checked Sep 16, 2026
22	Roughton International LTD	Indirect evidence	Chandlers Ford, United KingdomHQ checked Sep 16, 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 16, 2026
23	Walker Construction UK LTD	Indirect evidence	Ashford, United KingdomHQ checked Sep 16, 2026	201-500	125 contacts →
	Indirect evidence “Here at Walker Construction we attribute our success to more than just proven expertise and experience – but also to the enthusiasm of our team's.” Source: RevenueBase Database · checked Sep 16, 2026
24	SCP	Partial evidence	Manchester, United KingdomHQ checked Sep 16, 2026	51-200	120 contacts →
	Partial evidence “SCP is a transportation planning and infrastructure design consultancy with offices in Edinburgh, Bristol, Liverpool, Manchester, Leeds and London.” Source: RevenueBase Database · checked Sep 16, 2026
25	Mackley	Indirect evidence	Small Dole, United KingdomHQ checked Sep 16, 2026	51-200	116 contacts →
	Indirect evidence “Mackley provides a comprehensive range of services from conception through construction to project delivery.” Source: RevenueBase Database · checked Sep 16, 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: transportation 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 transportation engineering companies.
Partial evidence: Its own public description names part of transportation engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transportation 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 813 transportation engineering companies based in the United Kingdom

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Transportation engineering companies based in the United Kingdom at a glance

As of Sep 16, 2026

33.6%Verified-email coverage

67.6Average contacts per company

11-50Median size (employees)

17.6%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

395

11-50

235

51-200

111

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 813 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 transportation 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 “transportation 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 transportation 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 transportation 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, 18,441 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 16, 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.

Transportation engineering companies by metro

Transportation engineering companies in London143

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

RevenueBase identified 813 transportation 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?

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

Which city has the most transportation engineering companies?

London leads with 143 headquartered companies, followed by Birmingham (19) and Manchester (19).

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 18,441 verified decision-maker contacts tracked across these 813 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 16, 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.