Company lists · Data refreshed September 2026

Top 25 Customer service staffing companies based in London, United Kingdom

RevenueBase identified 170 customer service staffing companies headquartered in London, United Kingdom as of September 2026 and tracks 4,897 professional contacts across them, including 520 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers customer service 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
170Companies
4,897Contacts tracked
520Verified emails
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The 25 largest customer service staffing companies based in London, United Kingdom

Ranked by team size
Top 25 of 170 customer service 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 customer service 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026n/a2,341 contacts →

Partial evidence

“Blue Arrow is the UK’s Best-Known Staffing Agency, placing tens of thousands of candidates into temporary and permanent jobs for employers in the transport, logistics, call…”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200194 contacts →

Partial evidence

“Linnk Group provides staffing, outsourcing and professional services to our clients.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500125 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
4Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,00099 contacts →

Indirect evidence

“At Team Spirits, we bring together great people who share a genuine passion for delivering outstanding service.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5093 contacts →

Indirect evidence

“MRP Group have been providing skilled resources to the communications industry for over 20 years and have subsequently built an extensive network of associates, such that we now…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20090 contacts →

Indirect evidence

“A world class offshore outsourcing agency, with offices in London and Harare, we have access to some of the best educated, best spoken graduates you will find anywhere in the…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20064 contacts →

Indirect evidence

“We deliver bespoke solutions, on time, to transform your business.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20062 contacts →

Partial evidence

“Support Adventure is an outsourcing company that specializes in customer service and support.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,00035 contacts →

Indirect evidence

“The Esprit Group was founded in 1992 and since then we have specialised in the provision of staff to the hospitality and events industries.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5033 contacts →

Indirect evidence

“Our service model is based around dedicated recruitment practices that are focused on delivering a first class service second to none.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5032 contacts →

Indirect evidence

“C&C Search was founded with a rebellious spirit, a BIG ambition and a vision of a different future for recruitment and training.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026n/a30 contacts →

Partial evidence

“Kripson Staffing is offering full range of staffing options for, IT, Healthcare (travel), local contract, and direct hire in UK, Europe and US.Our experienced recruiting and…”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5024 contacts →

Indirect evidence

“Beyond Staff is a globally dispersed team supporting businesses through the most cost-efficient and flexible hiring solution.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20024 contacts →

Partial evidence

“Ted Staffing is now part of Ted Experience.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,00019 contacts →

Indirect evidence

“Established in 2001 we have developed a reputation for supplying the best temporary and permanent staff to hotels and restaurants throughout central London.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“At Upex Group, we're passionate about providing tailored workforce solutions that connect exceptional talent with great companies across the UK.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20016 contacts →

Partial evidence

“Kimon Services provides high-quality outsourced staff across various industries and disciplines, including customer service, data entry, call centres, marketing and sales support…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261-1015 contacts →

Indirect evidence

“Our Staff and people are at the heart of who we are.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20015 contacts →

Partial evidence

“Causeway Connect is a multi-disciplinary remote-staffing firm for the modern fast-growth business.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“OV Pacific specialises in delivering bespoke outsourcing and recruitment solutions across a range of industries, empowering UK businesses with exceptional talent.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261-108 contacts →

Indirect evidence

“home-box PROFESSIONAL RECRUITMENT We provide a comprehensive and professional recruitment service offering first class staff on both a permanent and temporary basis.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Kingsgate Recruitment launched 19 years years ago to provide a flexible recruitment service across South West London.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“Hire Ground is a London-based recruitment agency with over 20 years of experience placing temporary, contract, and permanent staff across London and the UK.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-507 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

Showing 25 of 170 customer service staffing companies based in London, United Kingdom

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Customer service staffing companies based in London, United Kingdom at a glance

As of Sep 28, 2026
10.6%Verified-email coverage
28.8Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
98
11-50
34
51-200
23
201-500
7
501-1,000
4
1,001-5,000
2
5,001-10,000
1
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 170 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 customer service 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 “customer service 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 customer service 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 customer service 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, 520 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 customer service 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 customer service staffing companies are there based in London, United Kingdom?

RevenueBase identified 170 customer service 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?

Blue Arrow, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most customer service staffing companies?

London leads the United Kingdom with 170 headquartered companies, followed by Manchester (17) and Glasgow (11).

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 520 verified decision-maker contacts tracked across these 170 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.