Company lists · Data refreshed September 2026
Top 25 Infrastructure policy consulting firms based in the United Kingdom
RevenueBase identified 1,186 infrastructure policy consulting firms headquartered in the United Kingdom as of September 2026 and tracks 49,266 professional contacts across them, including 18,559 with verified work emails. London is the largest hub.
This list covers infrastructure policy consulting 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 28, 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.
The 25 largest infrastructure policy consulting firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 8,458 contacts → | ||||
Indirect evidence “Mace Consult launched as a new and independent business on 5 March 2026, through a carve-out from Mace Group.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,667 contacts → | ||||
Partial evidence “Who we are: Amey is a global, integrated infrastructure consultancy and operations partner.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,437 contacts → | ||||
Indirect evidence “With offices in the UK and Australia, Frazer-Nash is a leading systems, engineering and technology company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,194 contacts → | ||||
Indirect evidence “Faithful+Gould is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 842 contacts → | ||||
Indirect evidence “Together with our strategic partners, we can address everything from supporting vulnerable customers, water quality, asset performance and leak detection, to integrated planning…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 707 contacts → | ||||
Indirect evidence “Helping the world move forward with confidence.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 690 contacts → | ||||
Indirect evidence “Pell Frischmann is a specialist advisory and technical consultancy operating across the built and natural environment, helping to shape a better future for the communities in…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 670 contacts → | ||||
Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 589 contacts → | ||||
Indirect evidence “Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 582 contacts → | ||||
Partial evidence “Our Rail Experts Have Transformed The Performance Of Britain’s Railway…They Can Help You Transform Yours Network Rail Consulting is the wholly owned international consultancy arm…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 580 contacts → | ||||
Indirect evidence “Since 2003, we’ve been solving planning and development problems for our clients successfully.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 563 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 528 contacts → | ||||
Indirect evidence “Strategy Insights is a specialist business and economic development consultancy.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 524 contacts → | ||||
Indirect evidence “Complex challenges.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 459 contacts → | ||||
Partial evidence “Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 437 contacts → | ||||
Partial 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 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 418 contacts → | ||||
Indirect evidence “Fichtner is one of the world's leading independent engineering consultancy firms.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 217 contacts → | ||||
Partial evidence “Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 214 contacts → | ||||
Partial evidence “Flint specialises in advising businesses and investors on how to navigate and surmount the policy, political, regulatory and competition challenges they face in European and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 166 contacts → | ||||
Indirect evidence “In an uncertain, complex, and ambiguous world, business change is essential and inevitable.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 156 contacts → | ||||
Indirect evidence “Aqua Consultants provide tailored environmental consultancy to broaden your thinking, lead transformation, and achieve successful outcomes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 156 contacts → | ||||
Partial evidence “Egis is a leading global consulting, construction engineering and operating firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 154 contacts → | ||||
Indirect evidence “Quod is a specialist, independent consultancy at the cutting edge of planning and development economics.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 153 contacts → | ||||
Partial evidence “Arthian has been established following a merger between Mabbett and IKM Consulting.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: infrastructure policy consulting 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 infrastructure policy consulting firms.
- Partial evidence
- Its own public description names part of infrastructure policy consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name infrastructure policy consulting 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 1,186 infrastructure policy consulting firms based in the United Kingdom
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Infrastructure policy consulting firms based in the United Kingdom at a glance
As of Sep 28, 2026Companies by employee count
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 1,186 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 infrastructure policy consulting 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 “infrastructure policy consulting 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 infrastructure policy consulting 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 infrastructure policy consulting 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, 18,559 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 28, 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.
Infrastructure policy consulting firms by metro
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 infrastructure policy consulting 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 infrastructure policy consulting firms are there based in the United Kingdom?
RevenueBase identified 1,186 infrastructure policy consulting 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?
MACE, headquartered in London, tops this list with the largest team on record.
Which city has the most infrastructure policy consulting firms?
London leads with 469 headquartered companies, followed by Manchester (25) and Edinburgh (20).
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 18,559 verified decision-maker contacts tracked across these 1,186 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 28, 2026.
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Infrastructure policy consulting firms by geography
- Infrastructure policy consulting firms based in Buenos Aires, Argentina
- Infrastructure policy consulting firms based in Adelaide, Australia
- Infrastructure policy consulting firms based in Brisbane, Australia
- Infrastructure policy consulting firms based in Canberra, Australia
- Infrastructure policy consulting firms based in Melbourne, Australia
- Infrastructure policy consulting firms based in Perth, Australia
- Infrastructure policy consulting firms based in Sydney, Australia
- Infrastructure policy consulting firms based in Wien, Austria
- Infrastructure policy consulting firms based in Brussels, Belgium
- Infrastructure policy consulting firms based in Belo Horizonte, Brazil
- Infrastructure policy consulting firms based in Brasilia, Brazil
- Infrastructure policy consulting firms based in Campinas, Brazil
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.
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