Company lists · Data refreshed September 2026

Top 25 Transport engineering consultants based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 927 companies tracked

RevenueBase identified 927 transport engineering consultants headquartered in the United Kingdom as of September 2026 and tracks 12,874 professional contacts across them, including 5,956 with verified work emails. London is the largest hub.

This list covers transport engineering consultants 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 21, 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 21, 2026 86% judged on-target in blind review

927Companies

12,874Contacts tracked

5,956Verified emails

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The 25 largest transport engineering consultants based in the United Kingdom

Ranked by team size

Top 25 of 927 transport engineering consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to transport engineering consultants: 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	Systra UK & Ireland	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Helping the world move forward with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
2	Fairhurst	Indirect evidence	Glasgow, United KingdomHQ checked Sep 21, 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 21, 2026
3	TRL	Partial evidence	Wokingham, United KingdomHQ checked Sep 21, 2026	201-500	357 contacts →
	Partial 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 21, 2026
4	Dyer & Butler	Strong evidence	Southampton, United KingdomHQ checked Sep 21, 2026	501-1,000	266 contacts →
	Strong 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 21, 2026
5	PJA	Indirect evidence	Longbridge, United KingdomHQ checked Sep 21, 2026	51-200	209 contacts →
	Indirect evidence “PJA is a leading independent specialist in the built environment sector.” Source: RevenueBase Database · checked Sep 21, 2026
6	Project Centre LTD	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	190 contacts →
	Partial 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 21, 2026
7	Clancy Consulting	Strong evidence	Manchester, United KingdomHQ checked Sep 21, 2026	51-200	168 contacts →
	Strong evidence “We’re a specialist engineering consultancy working nationally to deliver industry-leading engineering services and creative engineering designs that work for today and for future…” Source: RevenueBase Database · checked Sep 21, 2026
8	JNP Group	Partial evidence	Amersham, United KingdomHQ checked Sep 21, 2026	51-200	166 contacts →
	Partial evidence “With over 40 years experience JNP Group deliver highly professional, integrated efficient design and consultancy solutions from inception to completion, irrespective of project…” Source: RevenueBase Database · checked Sep 21, 2026
9	Egis In The UK	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
10	Rendel Limited	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
11	Meinhardt UK And Ireland	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	133 contacts →
	Strong evidence “Meinhardt (UK) is a leading international multidisciplinary engineering consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
12	Roughton International LTD	Partial evidence	Chandlers Ford, United KingdomHQ checked Sep 21, 2026	51-200	132 contacts →
	Partial 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 21, 2026
13	SCP	Strong evidence	Manchester, United KingdomHQ checked Sep 21, 2026	51-200	120 contacts →
	Strong 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 21, 2026
14	Mackley	Indirect evidence	Small Dole, United KingdomHQ checked Sep 21, 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 21, 2026
15	SLC Rail	Indirect evidence	Birmingham, United KingdomHQ checked Sep 21, 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 21, 2026
16	Brookbanks	Strong evidence	United KingdomHQ checked Sep 21, 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 21, 2026
17	Campbellreith	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	113 contacts →
	Partial 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 21, 2026
18	WALSH	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	110 contacts →
	Strong evidence “Walsh is a B Corp Certified structural, civil and geotechnical engineering consultancy specialising in complex developments on constrained urban sites.” Source: RevenueBase Database · checked Sep 21, 2026
19	Ardent Consulting Engineers	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	96 contacts →
	Strong 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 21, 2026
20	Crouch Waterfall & Partners LTD	Indirect evidence	Bradley Stoke, United KingdomHQ checked Sep 21, 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 21, 2026
21	Glanville Consultants LTD	Strong evidence	Hemel Hempstead, United KingdomHQ checked Sep 21, 2026	51-200	95 contacts →
	Strong evidence “Glanville Consultants is a multi-disciplinary engineering and surveying consultancy that provides a wide range of services including Structural Engineering, Civil Engineering…” Source: RevenueBase Database · checked Sep 21, 2026
22	Doran Consulting	Partial evidence	Belfast, United KingdomHQ checked Sep 21, 2026	51-200	93 contacts →
	Partial evidence “Founded in 1953, Doran Consulting offers a wealth of expertise and experience in the creation of economic, innovative and sustainable engineering solutions.” Source: RevenueBase Database · checked Sep 21, 2026
23	Hurley Palmer Flatt	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	91 contacts →
	Strong evidence “In 2019, Hurley Palmer Flatt, the UK’s leading independent multidisciplinary engineering consultancy, joined global design firm HDR.” Source: RevenueBase Database · checked Sep 21, 2026
24	NARRO	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 21, 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 21, 2026
25	Simpson TWS	Strong evidence	Henley On Thames, United KingdomHQ checked Sep 21, 2026	51-200	89 contacts →
	Strong evidence “Simpson TWS is a successful civil and structural engineering consultancy.” Source: RevenueBase Database · checked Sep 21, 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: transport engineering consultants. 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 transport engineering consultants.
Partial evidence: Its own public description names part of transport engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transport engineering consultants. 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 927 transport engineering consultants based in the United Kingdom

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Transport engineering consultants based in the United Kingdom at a glance

As of Sep 21, 2026

46.3%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

15.2%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

516

11-50

298

51-200

201-500

501-1,000

1,001-5,000

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 927 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 transport engineering consultants, 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 “transport engineering consultants”. 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 transport engineering consultants), 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 transport engineering consultants, 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, 5,956 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 21, 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.

Transport engineering consultants by metro

Transport engineering consultants in London141
Transport engineering consultants in Birmingham26

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 transport engineering consultants, 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 transport engineering consultants are there based in the United Kingdom?

RevenueBase identified 927 transport engineering consultants 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?

Systra UK & Ireland, headquartered in London, tops this list with the largest team on record.

Which city has the most transport engineering consultants?

London leads with 141 headquartered companies, followed by Birmingham (26) and Leeds (18).

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 5,956 verified decision-maker contacts tracked across these 927 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 21, 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.