Company lists · Data refreshed September 2026

Top 25 Transportation engineering firms based in the United Kingdom

Name: Transportation engineering firms 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 566 companies tracked

RevenueBase identified 566 transportation engineering firms headquartered in the United Kingdom as of September 2026 and tracks 10,468 professional contacts across them, including 4,371 with verified work emails. London is the largest hub.

This list covers transportation engineering firms 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

566Companies

10,468Contacts tracked

4,371Verified emails

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

The 25 largest transportation engineering firms based in the United Kingdom

Ranked by team size

Top 25 of 566 transportation engineering firms 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 transportation engineering firms: 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	Partial evidence	Sevenoaks, United KingdomHQ checked Sep 19, 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 19, 2026
2	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
3	Colas LTD	Indirect evidence	Birmingham Business Park, United KingdomHQ checked Sep 19, 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 19, 2026
4	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
5	TRL	Indirect evidence	Wokingham, United KingdomHQ checked Sep 19, 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 19, 2026
6	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
7	Project Centre LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
8	Egis In The UK	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
9	Rendel Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 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 19, 2026
10	Envolve Infrastructure	Indirect evidence	Cardiff Road, United KingdomHQ checked Sep 19, 2026	201-500	136 contacts →
	Indirect evidence “We’re envolve, specialist civil engineers.” Source: RevenueBase Database · checked Sep 19, 2026
11	SCP	Partial evidence	Manchester, United KingdomHQ checked Sep 19, 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 19, 2026
12	Mackley	Indirect evidence	Small Dole, United KingdomHQ checked Sep 19, 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 19, 2026
13	SLC Rail	Indirect evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	11-50	115 contacts →
	Indirect evidence “At SLC Rail we help government bodies, developers and TOCs to form visionary rail strategies, develop successful rail schemes and manage project delivery.” Source: RevenueBase Database · checked Sep 19, 2026
14	Brookbanks	Strong evidence	United KingdomHQ checked Sep 19, 2026	51-200	113 contacts →
	Strong evidence “Project Consultant & Development Partner: Civil, Structural, Mechanical & Electrical Engineering Designs; Highways, Transportation & Environmental; Cost & Commercial & Development…” Source: RevenueBase Database · checked Sep 19, 2026
15	Campbellreith	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	113 contacts →
	Indirect evidence “CampbellReith is an independent firm of consulting engineers providing structural, civil, geotechnical, land quality, development planning and transport planning services.” Source: RevenueBase Database · checked Sep 19, 2026
16	Ardent Consulting Engineers	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	96 contacts →
	Partial evidence “Founded in 2005, Ardent Consulting Engineers provide transport and infrastructure planning and engineering advice to the property and land development industry.” Source: RevenueBase Database · checked Sep 19, 2026
17	Crouch Waterfall & Partners LTD	Indirect evidence	Bradley Stoke, United KingdomHQ checked Sep 19, 2026	51-200	96 contacts →
	Indirect evidence “Crouch Waterfall is an established firm of Civil, Structural and Geotechnical Consulting Engineers with extensive experience of Railways, Buildings, Roads, Bridges and Waterways.” Source: RevenueBase Database · checked Sep 19, 2026
18	NARRO	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	89 contacts →
	Indirect evidence “Narro is a team of Consulting Structural & Civil Engineers with offices in Edinburgh, Glasgow, Stirling, Inverness, Aberdeen, Newcastle, and London.” Source: RevenueBase Database · checked Sep 19, 2026
19	Richter	Partial evidence	Marlow, United KingdomHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial evidence “Engineering Value Together - from incubation, to project realisation.” Source: RevenueBase Database · checked Sep 19, 2026
20	Associated Asphalt	Partial evidence	Heathrow, United KingdomHQ checked Sep 19, 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 19, 2026
21	Itransport	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 19, 2026	51-200	79 contacts →
	Indirect evidence “iTransport is a successful, independent transport planning consultancy specialising in development planning work across the UK and the Isle of Man.” Source: RevenueBase Database · checked Sep 19, 2026
22	Will Rudd	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	77 contacts →
	Indirect evidence “Will Rudd are Consulting Civil & Structural Engineers with an excellent track record in delivering a quality product.” Source: RevenueBase Database · checked Sep 19, 2026
23	Mayer Brown LTD	Partial evidence	Woking, United KingdomHQ checked Sep 19, 2026	51-200	67 contacts →
	Partial evidence “We are a leading independent consultancy and are experts in transport planning, civil engineering, highway infrastructure and environmental assessments.” Source: RevenueBase Database · checked Sep 19, 2026
24	Snc-Lavalin Atkins Transport Consulting & Advisory	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	67 contacts →
	Indirect evidence “Transport Consulting & Advisory is an independent global multi-modal transport sector strategy consultancy, transforming our clients’ businesses through transport planning…” Source: RevenueBase Database · checked Sep 19, 2026
25	Blyth & Blyth Consulting Engineers LTD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	65 contacts →
	Indirect evidence “Founded in 1848 by Benjamin Hall Blyth.” 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: transportation engineering firms. 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 firms.
Partial evidence: Its own public description names part of transportation engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transportation engineering firms. 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 566 transportation engineering firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 4,371 reachable decision-makers.

Free signup · no credit card

View the full list →

Transportation engineering firms based in the United Kingdom at a glance

As of Sep 19, 2026

41.8%Verified-email coverage

18.5Average contacts per company

1-10Median size (employees)

15.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

315

11-50

167

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 566 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 firms, 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 firms”. 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 firms), 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 firms, 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, 4,371 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.

Transportation engineering firms by metro

Transportation engineering firms in London90

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 firms, 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 firms are there based in the United Kingdom?

RevenueBase identified 566 transportation engineering firms 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 transportation engineering firms?

London leads with 90 headquartered companies, followed by Birmingham (14) and Glasgow (9).

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 4,371 verified decision-maker contacts tracked across these 566 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 566 transportation engineering firms based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Transportation engineering firms by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Transportation engineering firms 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.