Company lists · Data refreshed September 2026

Top 24 Healthcare agencies based in London, United Kingdom

Name: Healthcare agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 255 companies tracked

RevenueBase identified 255 healthcare agencies headquartered in London, United Kingdom as of September 2026 and tracks 11,286 professional contacts across them, including 974 with verified work emails. London is the largest hub.

This list covers healthcare agencies 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 16, 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 16, 2026 86% judged on-target in blind review

255Companies

11,286Contacts tracked

974Verified emails

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The 24 largest healthcare agencies based in London, United Kingdom

Ranked by team size

Top 24 of 255 healthcare agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare agencies: 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	Onecall24 Limited	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	501-1,000	267 contacts →
	Indirect evidence “We recruit for Nursing and Care roles across the UK.” Source: RevenueBase Database · checked Sep 16, 2026
2	CHS Healthcare	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	196 contacts →
	Strong evidence “At CHS Healthcare, part of Acacium Group, we go beyond simply finding care.” Source: RevenueBase Database · checked Sep 16, 2026
3	Camhs Professionals	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	n/a	152 contacts →
	Indirect evidence “We are recognised as experts in CAMHS recruitment, supporting services nationwide with highly skilled and experienced professionals to meet the growing demand in this specialist…” Source: RevenueBase Database · checked Sep 16, 2026
4	Birdie	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	149 contacts →
	Indirect evidence “We are hiring → Birdie is the smart homecare technology partner, helping agencies work smarter – not just harder.” Source: RevenueBase Database · checked Sep 16, 2026
5	MSI Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	132 contacts →
	Indirect evidence “Founded in 2002, MSI Group is a leading supplier of doctors, GPs, nurses, nurse practitioners, clinical advisors, allied health professionals, health science service staff…” Source: RevenueBase Database · checked Sep 16, 2026
6	TFS Healthcare	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	126 contacts →
	Strong evidence “TFS Healthcare specialise in the placement of healthcare professionals on a temporary, contract and permanent basis within the NHS and private organisations, nationwide.” Source: RevenueBase Database · checked Sep 16, 2026
7	Mayday Healthcare	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	201-500	91 contacts →
	Strong evidence “Mayday Healthcare has been an established Nursing Agency since December 2003.” Source: RevenueBase Database · checked Sep 16, 2026
8	Harmony Healthcare	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	60 contacts →
	Strong evidence “At Harmony Healthcare, we believe every individual has the right to live as independently as possible, that's why we provide the highest level of clinically-led care across the UK…” Source: RevenueBase Database · checked Sep 16, 2026
9	Zentar Health And Social Care	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	56 contacts →
	Strong evidence “Zentar UK is a leading healthcare agency based within London supplying nurses of all grades and healthcare assistants to private hospitals, nursing homes and the NHS within the UK.” Source: RevenueBase Database · checked Sep 16, 2026
10	Fenwick Healthcare Staffing	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	53 contacts →
	Strong evidence “Fenwick Healthcare Staffing is an innovative healthcare agency, built on over 30 years of experience.” Source: RevenueBase Database · checked Sep 16, 2026
11	Pure Healthcare Group	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	45 contacts →
	Strong evidence “Pure Healthcare Group is a recruitment service for the healthcare industry.” Source: RevenueBase Database · checked Sep 16, 2026
12	Scientific Group	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	44 contacts →
	Strong evidence “Scientific Group: Healthcare communications for a changing world We’re an independent group of agencies dedicated to solving your most complex communication challenges across the…” Source: RevenueBase Database · checked Sep 16, 2026
13	Apasen	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	501-1,000	40 contacts →
	Indirect evidence “Our aim is to deliver excellence and satisfaction through the provision of high quality services that put the welfare of individuals at the forefront of everything we do.” Source: RevenueBase Database · checked Sep 16, 2026
14	Delta Nursing Agency LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	38 contacts →
	Indirect evidence “Delta Nursing Agency Ltd is a leading medical recruitment agency for nursing staff, with over 20 years experience.” Source: RevenueBase Database · checked Sep 16, 2026
15	Oakwood 24	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	35 contacts →
	Strong evidence “Oakwood24 are a Specialist Recruiters of healthcare professionals across the bands-providing the NHS and Private Sector with high quality temporary and permanent staff, 24 hours a…” Source: RevenueBase Database · checked Sep 16, 2026
16	SAY Communications	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	34 contacts →
	Strong evidence “We are HEALTHCARE, TECHNOLOGY and CORPORATE COMMUNICATIONS specialists.” Source: RevenueBase Database · checked Sep 16, 2026
17	Daytime Healthcare	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	33 contacts →
	Strong evidence “Daytime Healthcare is a Dynamic Healthcare Recruitment Business with an emphasis on providing highly skilled healthcare professionals into Public and Private sector Healthcare…” Source: RevenueBase Database · checked Sep 16, 2026
18	Synaptik Digital	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	31 contacts →
	Strong evidence “We are a creative digital agency providing state-of-the-art creative consultancy services and digital solutions to our clients in the healthcare industry.” Source: RevenueBase Database · checked Sep 16, 2026
19	Amp27	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	31 contacts →
	Strong evidence “Tired of the ordinary in healthcare communications?” Source: RevenueBase Database · checked Sep 16, 2026
20	Capital Staffing Services Limited	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	30 contacts →
	Strong evidence “Capital Staffing is one of the most respected healthcare recruitment agencies in London, committed to supplying outstanding staff for long term and/or ad-hoc shifts.” Source: RevenueBase Database · checked Sep 16, 2026
21	Ashbourne Healthcare Services	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	29 contacts →
	Strong evidence “Ashbourne is a CQC registered healthcare agency and homecare provider, specialised in the delivery of flexible, personalised assistance to service users throughout London and the…” Source: RevenueBase Database · checked Sep 16, 2026
22	Medlocums Recruitment LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	28 contacts →
	Strong evidence “The healthcare sector continues to evolve at a fast pace, however what remains consistent is the urgent need for qualified, experienced healthcare staff within the public and…” Source: RevenueBase Database · checked Sep 16, 2026
23	Alpha24 Healthcare LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	27 contacts →
	Strong evidence “Alpha24 Healthcare is a healthcare recruitment agency, supplying an extensive range of healthcare professionals that include but are not limited to Nurses, Healthcare Assistants…” Source: RevenueBase Database · checked Sep 16, 2026
24	GIG Health	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “We’re GIG Health!” Source: RevenueBase Database · checked Sep 16, 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: healthcare agencies. 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 healthcare agencies.
Partial evidence: Its own public description names part of healthcare agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare agencies. 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 24 of 255 healthcare agencies based in London, United Kingdom

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Healthcare agencies based in London, United Kingdom at a glance

As of Sep 16, 2026

8.6%Verified-email coverage

44.3Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 255 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 healthcare agencies, 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 “healthcare agencies”. 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 healthcare agencies), 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 healthcare agencies, 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, 974 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 16, 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.

Healthcare agencies by metro in the United Kingdom

Healthcare agencies in London255
Healthcare agencies in Manchester34
Healthcare agencies in Birmingham30

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 healthcare agencies, 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 healthcare agencies are there based in London, United Kingdom?

RevenueBase identified 255 healthcare agencies 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?

Onecall24 Limited, headquartered in London, tops this list with the largest team on record.

Which city has the most healthcare agencies?

London leads with 255 headquartered companies, followed by Manchester (34) and Birmingham (30).

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 974 verified decision-maker contacts tracked across these 255 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 16, 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.