Company lists · Data refreshed October 2026

Top 25 Infrastructure design consultancies based in the United Kingdom

Name: Infrastructure design consultancies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 5,827 companies tracked

RevenueBase identified 5,827 company matches for infrastructure design consultancies associated with the United Kingdom as of October 2026 and tracks 210,419 professional contacts across them, including 85,430 with verified work emails and 11,962 with mobile numbers. London is the largest hub.

This list covers company matches for infrastructure design consultancies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

5,827Companies

210,419Contacts tracked

85,430Verified emails

11,962Mobile numbers

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The 25 largest infrastructure design consultancies based in the United Kingdom

Ranked by team size

Top 25 of 5,827 company matches for infrastructure design consultancies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ARUP	Exact match	London, United KingdomHQ recorded Oct 1, 2026	10001+	21,018 contacts →
	Exact match “We guide, plan and design the future of the built environment.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Mott Macdonald	Exact match	London, United KingdomHQ recorded Oct 1, 2026	10001+	19,072 contacts →
	Exact match “We are an engineering, management and development consultancy and one of the largest wholly employee-owned firms of our kind.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Atkins	Exact match	Epsom, United KingdomHQ recorded Oct 1, 2026	10001+	9,297 contacts →
	Exact match “Atkins is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	MACE	Exact match	London, United KingdomHQ recorded Oct 1, 2026	5,001-10,000	8,458 contacts →
	Exact match “Mace Consult launched as a new and independent business on 5 March 2026, through a carve-out from Mace Group.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	AMEY	Exact match	London, United KingdomHQ recorded Oct 1, 2026	10001+	6,667 contacts →
	Exact match “Who we are: Amey is a global, integrated infrastructure consultancy and operations partner.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	RPS	Exact match	Abingdon, United KingdomHQ recorded Oct 1, 2026	5,001-10,000	4,684 contacts →
	Exact match “Founded in 1970, RPS is part of Tetra Tech, a leading global provider of consulting and engineering services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Costain Group PLC	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	3,785 contacts →
	Exact match “Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet thrive.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Buro Happold	Exact match	Bath, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	3,336 contacts →
	Exact match “We are an international, integrated consultancy of engineers, designers and advisers.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Murphy	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	3,095 contacts →
	Exact match “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	SEP Engineers	Exact match	Skelmersdale, United KingdomHQ recorded Oct 1, 2026	n/a	1,837 contacts →
	Exact match “Established in 1986, SEP has been the industry’s leader for site engineering, surveying and management solutions for over thirty years, providing vital services, resources and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	OCU	Exact match	Stockport, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,578 contacts →
	Exact match “OCU provides end-to-end infrastructure engineering in the utilities, digital, and energy markets, specialising in safely and efficiently delivering complex client requirements.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Ridge And Partners LLP	Exact match	Woodstock, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,427 contacts →
	Exact match “Ridge is a built environment consultancy, helping clients turn complex briefs into buildings and infrastructure that perform in the real world.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Cundall	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,269 contacts →
	Exact match “We are a global, multi-disciplinary consultancy delivering sustainable engineering and design solutions across the built environment.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Clancy	Exact match	Harefield, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,218 contacts →
	Exact match “The Clancy Group was founded in 1958 by Michael Clancy as M.J.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Bakerhicks	Exact match	Warwick, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,213 contacts →
	Exact match “BakerHicks are a design, engineering and project delivery company specialising in complex infrastructure, process and built environments across the full project life cycle, from…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Faithful Gould	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,194 contacts →
	Exact match “Faithful+Gould is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Hoare LEA	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	1,103 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Keltbray	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,073 contacts →
	Exact match “Keltbray is a UK leading specialist engineering contractor, which offers engineering, construction, demolition, decommissioning, remediation, environmental services and reinforced…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Penspen	Exact match	London, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	1,007 contacts →
	Exact match “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	FM Conway LTD	Exact match	Sevenoaks, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	974 contacts →
	Exact match “FM Conway is a leading infrastructure services company delivering vital services in transportation, the built environment and open spaces for communities and businesses.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Amcogiffen	Exact match	Barnsley, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	845 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Binnies	Exact match	Redhill, United KingdomHQ recorded Oct 1, 2026	501-1,000	842 contacts →
	Exact match “Together with our strategic partners, we can address everything from supporting vulnerable customers, water quality, asset performance and leak detection, to integrated planning…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Barhale LTD	Exact match	Walsall, United KingdomHQ recorded Oct 1, 2026	1,001-5,000	803 contacts →
	Exact match “Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Pick Everard	Exact match	Leicester, United KingdomHQ recorded Oct 1, 2026	501-1,000	795 contacts →
	Exact match “Pick Everard is a leading multi-professional consultancy working within the property, infrastructure and construction industry.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	RED Engineering Design	Exact match	London, United KingdomHQ recorded Oct 1, 2026	501-1,000	785 contacts →
	Exact match “RED Engineering Design, a company of Tractebel, is a global engineering consultancy specialising in the design of complex, mission-critical Data Centre and digital infrastructure…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “infrastructure design consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,827 infrastructure design consultancies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 85,430 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure design consultancies based in the United Kingdom at a glance

As of Oct 1, 2026

40.6%Verified-email coverage

5.7%Mobile-number coverage

36.1Average contacts per company

1-10Median size (employees)

19.7%Largest-city concentration · London

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

3,266

11-50

1,674

51-200

573

201-500

133

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 33.0d

13,9680–30

68,02031–60

2,95461–90

4390–180

445180+

Company record updated

Median 94.0d

00–30

10,79331–60

89,47361–90

97,58690–180

12,567180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “infrastructure design consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 85,430 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Infrastructure design consultancies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure design consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure design consultancies are there based in the United Kingdom?

RevenueBase identified 5,827 company matches for infrastructure design consultancies associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ARUP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most infrastructure design consultancies?

London leads with 1146 company records, followed by Manchester (148) and Birmingham (98).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 85,430 professional contacts with verified work emails tracked across these 5,827 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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 SmartSearch, 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.