Company lists · Data refreshed September 2026

Top 25 Federal project management staffing companies based in London, United Kingdom

Name: Federal project management 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 63 companies tracked

RevenueBase identified 63 federal project management staffing companies headquartered in London, United Kingdom as of September 2026 and tracks 908 professional contacts across them, including 199 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers federal project management 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

63Companies

908Contacts tracked

199Verified emails

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The 25 largest federal project management staffing companies based in London, United Kingdom

Ranked by team size

Top 25 of 63 federal project management 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 federal project management 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	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
2	Skillrecruit	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	125 contacts →
	Indirect 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
3	OPERA	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	93 contacts →
	Strong evidence “Opera is a different name for project management.” Source: RevenueBase Database · checked Sep 28, 2026
4	Mentor IMC Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	54 contacts →
	Partial evidence “Mentor IMC Group offers more than 30 years of specialist experience in the oil & gas, renewable energies and major infrastructure industries by providing experienced project…” Source: RevenueBase Database · checked Sep 28, 2026
5	Warriorz Technologies	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	51 contacts →
	Indirect evidence “In a highly technical industry of Information Technology, Warriorz Technologies Ltd is paving the way in Human Resource and Software consulting across the globe.” Source: RevenueBase Database · checked Sep 28, 2026
6	Tribuild Solutions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “TRIBUILD is the innovation in talent recruitment and project services.” Source: RevenueBase Database · checked Sep 28, 2026
7	GS Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Founded in 2021 with a mission to redefine how tech and engineering talent is sourced and delivered, GS Group has rapidly evolved into a trusted global hiring and delivery partner.” Source: RevenueBase Database · checked Sep 28, 2026
8	Coba IT Consultants	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	25 contacts →
	Partial evidence “Coba IT is a staffing solutions business that was incorporated in 1997, with operating offices based in the UK, Switzerland and Serbia.” Source: RevenueBase Database · checked Sep 28, 2026
9	Locke Staffing Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “We aren't just a group of recruiting firms; we are the dynamic talent partner that ignites success across the pillars of the modern economy: Construction, Energy, and Technology!” Source: RevenueBase Database · checked Sep 28, 2026
10	Portare Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “We do things differently here at Portare Solutions.” Source: RevenueBase Database · checked Sep 28, 2026
11	Keras Global Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Keras Global Limited is a global Consulting and Professional Staffing company founded in 2016, specializes in providing Staff Augmentation, Professional Consulting, Payroll…” Source: RevenueBase Database · checked Sep 28, 2026
12	Tier ONE Contracts LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “We source and supply all trades from entry-level operatives to senior management, through all stages of construction from project initiation to practical completion.” Source: RevenueBase Database · checked Sep 28, 2026
13	Vantage Recruitment Services	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Vantage Recruitment services are a new refreshing provider of Interim solutions to organisations in the Private and Public sector.” Source: RevenueBase Database · checked Sep 28, 2026
14	Addanex International	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “focus on supplying the strongest “Tried and Trusted” freelance experts across Europe and SOW / Project Delivery services The AddanEx International team have years of experience…” Source: RevenueBase Database · checked Sep 28, 2026
15	Elantis Staffing Solutions	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Elantis Staffing Solutions is a premier partner for dynamic and tailored onboarding and recruitment designed to elevate your business to newer heights.” Source: RevenueBase Database · checked Sep 28, 2026
16	Resource & Recruit LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Based in Central London, Resource & Recruit Ltd have over 20 years combined experience in the Construction Industry.” Source: RevenueBase Database · checked Sep 28, 2026
17	Pros2work	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “At Pros2Work we love people and Tech.” Source: RevenueBase Database · checked Sep 28, 2026
18	Dragonfly Projects	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “We provide Project Management and Employers Agency services to our clients within the commercial and residential construction sector.” Source: RevenueBase Database · checked Sep 28, 2026
19	Talent Network	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Our mission at Talent Network is to make hiring easy and fast for companies, while providing our candidates with unique and relevant opportunities.” Source: RevenueBase Database · checked Sep 28, 2026
20	Biotech REC	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “Biotech Rec are specialists in providing top talent to support engineering projects within the Life Science sector on a contract and permanent basis.” Source: RevenueBase Database · checked Sep 28, 2026
21	Condicor LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “We service the construction industry with permanent and temporary management staff at all levels and disciplines, Labour supply and labour logistics packages.” Source: RevenueBase Database · checked Sep 28, 2026
22	Sentio Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Sentio helps forward-thinking organisations connect with the specialist Talent they need to drive innovation, efficiency, and growth.” Source: RevenueBase Database · checked Sep 28, 2026
23	Calio Consulting Group CCG	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “CALIO Consulting Group (CCG) is a quality-focused MSP & talent solutions provider, offering flexible and bespoke models for contractor workforce and executive hiring.” Source: RevenueBase Database · checked Sep 28, 2026
24	Fplc LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Sourcing outstanding people and services” Source: RevenueBase Database · checked Sep 28, 2026
25	Oxford Corp LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence 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: federal project management 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 federal project management staffing companies.
Partial evidence: Its own public description names part of federal project management staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name federal project management 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 63 federal project management staffing companies based in London, United Kingdom

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Federal project management staffing companies based in London, United Kingdom at a glance

As of Sep 28, 2026

21.9%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 63 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 federal project management 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 “federal project management 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 federal project management 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 federal project management 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, 199 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.

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 federal project management 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 federal project management staffing companies are there based in London, United Kingdom?

RevenueBase identified 63 federal project management 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?

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

Which city in the United Kingdom has the most federal project management staffing companies?

London leads the United Kingdom with 63 headquartered companies, followed by Manchester (12) and Glasgow (7).

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 199 verified decision-maker contacts tracked across these 63 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.