Company lists · Data refreshed September 2026

Top 25 Transportation and traffic engineering consultants based in the United Kingdom

Name: Transportation and traffic 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 438 companies tracked

RevenueBase identified 438 transportation and traffic engineering consultants headquartered in the United Kingdom as of September 2026 and tracks 6,618 professional contacts across them, including 2,700 with verified work emails. London is the largest hub.

This list covers transportation and traffic 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

438Companies

6,618Contacts tracked

2,700Verified emails

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The 25 largest transportation and traffic engineering consultants based in the United Kingdom

Ranked by team size

Top 25 of 438 transportation and traffic 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 transportation and traffic 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	Colas LTD	Indirect evidence	Birmingham Business Park, United KingdomHQ checked Sep 21, 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 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	Indirect evidence	Wokingham, United KingdomHQ checked Sep 21, 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 21, 2026
4	Core Highways	Partial evidence	England/wales, United KingdomHQ checked Sep 21, 2026	1,001-5,000	227 contacts →
	Partial evidence “Offering solutions for safe working environments on the highways across the UK incorporating all forms of temporary traffic management, permanent motorway barriers, permanent…” Source: RevenueBase Database · checked Sep 21, 2026
5	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
6	Amberon LTD	Partial evidence	Paignton, United KingdomHQ checked Sep 21, 2026	201-500	141 contacts →
	Partial evidence “Amberon are one of the largest suppliers of Traffic Management Solutions in the UK today.” Source: RevenueBase Database · checked Sep 21, 2026
7	HW Martin Traffic Management Limited	Partial evidence	Alfreton, United KingdomHQ checked Sep 21, 2026	501-1,000	129 contacts →
	Partial evidence “We are HW Martin (Traffic Management) Ltd, a traffic management expert that operates nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
8	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
9	GO Traffic Management Limited GTM LTD	Partial evidence	Salford, United KingdomHQ checked Sep 21, 2026	51-200	114 contacts →
	Partial evidence “Go Traffic Management Limited (GTM) are traffic management specialists with a wide coverage over the UK.” Source: RevenueBase Database · checked Sep 21, 2026
10	Campbellreith	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
11	Ardent Consulting Engineers	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
12	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
13	Itransport	Partial evidence	Basingstoke, United KingdomHQ checked Sep 21, 2026	51-200	79 contacts →
	Partial 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 21, 2026
14	Hatton Traffic Management LTD	Partial evidence	Nr Blagdon, United KingdomHQ checked Sep 21, 2026	51-200	76 contacts →
	Partial evidence “Hatton offer a complete range of temporary traffic management services across the UK from motorway closures through to portable traffic lights as well as providing city-wide event…” Source: RevenueBase Database · checked Sep 21, 2026
15	Forest Traffic Services LTD	Partial evidence	Newport, United KingdomHQ checked Sep 21, 2026	201-500	73 contacts →
	Partial evidence “Welcome to Forest Traffic Services Ltd.” Source: RevenueBase Database · checked Sep 21, 2026
16	Highway Traffic Management	Partial evidence	Birmingham, United KingdomHQ checked Sep 21, 2026	201-500	71 contacts →
	Partial evidence “HTM provide temporary traffic management solutions across the highways industry with a focus on safety and delivery, our roots based in Birmingham where our family foundations…” Source: RevenueBase Database · checked Sep 21, 2026
17	Mayer Brown LTD	Strong evidence	Woking, United KingdomHQ checked Sep 21, 2026	51-200	67 contacts →
	Strong 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 21, 2026
18	Snc-Lavalin Atkins Transport Consulting & Advisory	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	67 contacts →
	Partial 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 21, 2026
19	Paul Basham Associates	Partial evidence	Fareham, United KingdomHQ checked Sep 21, 2026	51-200	61 contacts →
	Partial evidence “With three offices located across the country, we are ideally positioned to meet your Transport and Civil Engineering needs.” Source: RevenueBase Database · checked Sep 21, 2026
20	Clearview Intelligence	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	51-200	59 contacts →
	Indirect evidence “We provide ITS technology solutions that support Active Travel, Network Optimisation and Route Safety.” Source: RevenueBase Database · checked Sep 21, 2026
21	Class ONE Traffic Management	Partial evidence	Bonnybridge, United KingdomHQ checked Sep 21, 2026	51-200	59 contacts →
	Partial evidence “Class One Traffic Management est.1991 is Scotland’s leading provider of traffic management services.” Source: RevenueBase Database · checked Sep 21, 2026
22	Contraflow LTD	Partial evidence	Cumbernauld, United KingdomHQ checked Sep 21, 2026	51-200	58 contacts →
	Partial evidence “First Company in Scotland to achieve Quality Assurance and Sector Scheme 12 approval, Contraflow have been a market leader in traffic management for over 25 years we now have 3…” Source: RevenueBase Database · checked Sep 21, 2026
23	ITP	Partial evidence	Nottingham, United KingdomHQ checked Sep 21, 2026	51-200	55 contacts →
	Partial evidence “ITP is a UK-based sustainable transport planning consultancy supporting clients to plan and implement innovative solutions to complex transport challenges.” Source: RevenueBase Database · checked Sep 21, 2026
24	Velocity	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	53 contacts →
	Indirect evidence “Velocity Transport Planning was established by Jonathan Howard and Lloyd Bush, together they have over 40 years of transport planning and highways experience, in both the public…” Source: RevenueBase Database · checked Sep 21, 2026
25	Goodson Associates	Partial evidence	Edinburgh, United KingdomHQ checked Sep 21, 2026	51-200	53 contacts →
	Partial evidence “Goodson Associates is an award-winning civil and structural engineering consulting firm providing design services to the construction industry.” 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: transportation and traffic 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 transportation and traffic engineering consultants.
Partial evidence: Its own public description names part of transportation and traffic engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transportation and traffic 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 438 transportation and traffic engineering consultants based in the United Kingdom

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Transportation and traffic engineering consultants based in the United Kingdom at a glance

As of Sep 21, 2026

40.8%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

15.3%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

225

11-50

128

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 438 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 and traffic 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 “transportation and traffic 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 transportation and traffic 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 transportation and traffic 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, 2,700 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.

Transportation and traffic engineering consultants by metro

Transportation and traffic engineering consultants in London67

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 and traffic 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 transportation and traffic engineering consultants are there based in the United Kingdom?

RevenueBase identified 438 transportation and traffic 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?

Colas LTD, headquartered in United Kingdom, tops this list with the largest team on record.

Which city has the most transportation and traffic engineering consultants?

London leads with 67 headquartered companies, followed by Manchester (12) and Birmingham (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 2,700 verified decision-maker contacts tracked across these 438 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.