Company lists · Data refreshed September 2026

Top 25 Infrastructure engineering staffing companies based in London, United Kingdom

Name: Infrastructure engineering staffing companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 745 companies tracked

RevenueBase identified 745 infrastructure engineering staffing companies headquartered in London, United Kingdom as of September 2026 and tracks 22,328 professional contacts across them, including 7,279 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers infrastructure engineering staffing companies headquartered in London, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

745Companies

22,328Contacts tracked

7,279Verified emails

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The 25 largest infrastructure engineering staffing companies based in London, United Kingdom

Ranked by team size

Top 25 of 745 infrastructure engineering staffing companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure engineering staffing companies: 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	Costain Group PLC	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,785 contacts →
	Partial evidence “Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet thrive.” Source: RevenueBase Database · checked Sep 28, 2026
2	Murphy	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,095 contacts →
	Strong evidence “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
3	Faithful Gould	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,194 contacts →
	Indirect evidence “Faithful+Gould is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 28, 2026
4	Progressive	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	1,089 contacts →
	Partial evidence “Fusing engineering innovation and ambition Progressive is an Engineering specialist and part of SThree, the global STEM workforce consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
5	Spencer Ogden	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	731 contacts →
	Partial evidence “Spencer Ogden \| Powering Progress Spencer Ogden partners with the organisations shaping the future of Critical Infrastructure, Natural Resources, Sustainability, and Finance.” Source: RevenueBase Database · checked Sep 28, 2026
6	Systra UK & Ireland	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Helping the world move forward with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
7	Aureos	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	583 contacts →
	Partial evidence “Aureos is a multi-disciplinary energy, transport networks specialist and engineering services provider, spanning the design, engineering, installation, maintenance, and crisis…” Source: RevenueBase Database · checked Sep 28, 2026
8	LVI Associates	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	494 contacts →
	Partial evidence “Infrastructure plays a critical role in creating a future that works for everyone.” Source: RevenueBase Database · checked Sep 28, 2026
9	Beck & Pollitzer	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	443 contacts →
	Partial evidence “Beck & Pollitzer is the world’s leading provider of complex engineering solutions, including industrial installation and relocation services.” Source: RevenueBase Database · checked Sep 28, 2026
10	VVB Engineering	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	336 contacts →
	Strong evidence “At VVB, we deliver mechanical, electrical, telecommunication, temporaries and fire engineering expertise and services for large-scale infrastructure projects.” Source: RevenueBase Database · checked Sep 28, 2026
11	Madigangill	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	334 contacts →
	Indirect evidence “At MadiganGill, we’re committed to helping clients deliver successful projects with confidence, efficiency, and the right people by their side.” Source: RevenueBase Database · checked Sep 28, 2026
12	Stanley David And Associates	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	253 contacts →
	Partial evidence “Stanley David And Associates (SDNA Global) is a recruitment specialist in the area of IT and Engineering, we stay firmly in our area of expertise, doing what we love.” Source: RevenueBase Database · checked Sep 28, 2026
13	Fawkes & Reece	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	245 contacts →
	Partial evidence “Fawkes & Reece has been providing staffing and recruitment services to the leading organisations across construction and the built environment since 2001.” Source: RevenueBase Database · checked Sep 28, 2026
14	VHR Global Technical Recruitment	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	224 contacts →
	Partial evidence “VHR partners with global organisations across the Aerospace & Aviation, F1 & Automotive, Engineering & Manufacturing, Defence, Construction and Marine sectors, delivering…” Source: RevenueBase Database · checked Sep 28, 2026
15	Project Centre LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
16	Falcon Green	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	166 contacts →
	Indirect evidence “Falcon Green Fastest Growing Recruiter in the UK!” Source: RevenueBase Database · checked Sep 28, 2026
17	Eden Brown Built Environment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	157 contacts →
	Indirect evidence “Placing specialists across the built environment arena - locally, nationally, expertly.” Source: RevenueBase Database · checked Sep 28, 2026
18	Rendel Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
19	Bmsl Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	134 contacts →
	Indirect evidence “BMSL was formed in 1996 to provide specialist support to the construction industry.” Source: RevenueBase Database · checked Sep 28, 2026
20	Skillrecruit	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	125 contacts →
	Partial evidence “Skilliantech Ltd, trading as “SkillRecruit”, is a specialist IT and Engineering recruitment agency delivering comprehensive coverage of recruitment services across all industries…” Source: RevenueBase Database · checked Sep 28, 2026
21	SRC Infrastructure	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	114 contacts →
	Strong evidence “SRC Infrastructure has been providing project management and engineering advisory, consultancy and managed service solutions to UK infrastructure clients for 20 years.” Source: RevenueBase Database · checked Sep 28, 2026
22	Campbellreith	Indirect evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
23	Skilled Careers	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	111 contacts →
	Partial evidence “Skilled Careers is one of the UK’s leading professional search and recruitment consultancies for the construction, engineering and property sectors, for both permanent and…” Source: RevenueBase Database · checked Sep 28, 2026
24	Aecom Engineering Uk&i	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	110 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
25	GER Consultancy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	102 contacts →
	Partial evidence “GER Consultancy specialises in the selection and provision of qualified and experienced engineering and technical personnel to clients within the Steel, Power Generation and Oil &…” Source: RevenueBase Database · checked Sep 28, 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: infrastructure engineering staffing companies. 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 engineering staffing companies.
Partial evidence: Its own public description names part of infrastructure engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure engineering staffing companies. 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 745 infrastructure engineering staffing companies based in London, United Kingdom

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Infrastructure engineering staffing companies based in London, United Kingdom at a glance

As of Sep 28, 2026

32.6%Verified-email coverage

30.0Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

462

11-50

192

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 745 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 engineering staffing companies, 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 London, United Kingdom whose own description of what they do matches “infrastructure engineering staffing companies”. 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 engineering staffing companies), 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 engineering staffing companies, and records with no verified work email. Companies headquartered outside London 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, 7,279 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 engineering staffing companies by metro in the United Kingdom

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 engineering staffing companies, 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 engineering staffing companies are there based in London, United Kingdom?

RevenueBase identified 745 infrastructure engineering staffing companies headquartered in London, 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?

Costain Group PLC, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most infrastructure engineering staffing companies?

London leads the United Kingdom with 745 headquartered companies, followed by Manchester (139) and Birmingham (87).

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 7,279 verified decision-maker contacts tracked across these 745 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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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.