Company lists · Data refreshed September 2026

Top 22 Quality assurance staffing agencies based in London, United Kingdom

RevenueBase identified 117 company matches for quality assurance staffing agencies associated with London, United Kingdom as of September 2026 and tracks 1,341 professional contacts across them, including 327 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for quality assurance staffing agencies associated with London, 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 September 29, 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 Sep 29, 2026 How this list was built
117Companies
1,341Contacts tracked
327Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 22 largest quality assurance staffing agencies based in London, United Kingdom

Ranked by team size
Top 22 of 117 company matches for quality assurance staffing agencies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 29, 2026501-1,000267 contacts →

Exact match

“We recruit for Nursing and Care roles across the UK.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20099 contacts →

Exact match

“We pride ourselves on knowing everything about our candidates and clients which is why we meet all of them face-to-face.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-50091 contacts →

Exact match

“Mayday Healthcare has been an established Nursing Agency since December 2003.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5070 contacts →

Exact match

“Qniverse is your trusted Quality Assurance service partner that stands at the forefront of a paradigm shift in QA by redefining quality.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5028 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5027 contacts →

Exact match

“Alpha24 Healthcare is a healthcare recruitment agency, supplying an extensive range of healthcare professionals that include but are not limited to Nurses, Healthcare Assistants…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5014 contacts →

Exact match

“The healthcare industry provides a variety of care through hospitals, nursing homes and other care providers who rely heavily on the hard work and dedication of their workforce.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1013 contacts →

Exact match

“Chalcot Care is an innovative healthcare agency, built on over 30 years of experience.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“MSL Healthcare are specialists for supplying temporary and permanent personnel to the our clients within the healthcare industry which includes both the private and public sector…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“In the ever-evolving world of PHARMACEUTICALS, BIOTECHNOLOGY, and MEDICAL DEVICES, securing exceptional QUALITY, TECHNICAL OPERATIONS and REGULATORY AFFAIRS talent is crucial for…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“AMC Healthcare has been providing high-quality, flexible staffing solutions to the social and healthcare sectors since 2016.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20010 contacts →

Exact match

“Walsons Healthcare is a trusted partner for the next giant leap in your career in the healthcare world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-2008 contacts →

Exact match

“Operating 24 hours per day Your Nurse is a high pay nursing agency supplying staff nationwide from across the healthcare spectrum.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-506 contacts →

Exact match

“Finding the best talent, the make the greatest change to patients globally.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-106 contacts →

Exact match

“William Parker Group specialises in placing across Pharma, Biotech, CRO, CDMO and eClinical organisations.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-105 contacts →

Exact match

“AssureBio specialises in pharmaceutical quality assurance and QP recruitment, connecting Life Science companies with exceptional Quality leaders who protect patients and elevate…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-105 contacts →

Exact match

“HSA Locums was born to provide an effective 24 hour temporary staffing solution to Private and Public sector Healthcare organisations across the U.K Our company ethos correlate…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-504 contacts →

Exact match

“SAFEGUARD HEALTHCARE RECRUITMENT is a nursing healthcare agency that provides flexible temporary and permanent staffing solutions to hospitals‚ Nursing homes‚ Private Residences…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-103 contacts →

Exact match

“At Pros2Work we love people and Tech.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-503 contacts →

Exact match

“At the Think Group we are a specialist recruitment agency for Education and Healthcare.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-103 contacts →

Exact match

“Biotech Rec are specialists in providing top talent to support engineering projects within the Life Science sector on a contract and permanent basis.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 22 of 117 quality assurance staffing agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 327 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Quality assurance staffing agencies based in London, United Kingdom at a glance

As of Sep 29, 2026
24.4%Verified-email coverage
11.5Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
34
51-200
18
201-500
5
501-1,000
3
10001+
1

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 117 companies.

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 London, United Kingdom whose business descriptions match “quality assurance staffing agencies” 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 327 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 September 29, 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.

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 “quality assurance staffing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quality assurance staffing agencies are there based in London, United Kingdom?

RevenueBase identified 117 company matches for quality assurance staffing agencies associated with London, United Kingdom as of September 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?

Onecall24 Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most quality assurance staffing agencies?

London leads the United Kingdom with 117 company records, followed by Manchester (13) and Leeds (10).

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 327 professional contacts with verified work emails tracked across these 117 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 September 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 117 quality assurance staffing agencies based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.