Company lists · Data refreshed September 2026

Top 25 Back office services companies based in the United Kingdom

RevenueBase identified 338 company matches for back office services companies associated with the United Kingdom as of September 2026 and tracks 1,882 professional contacts across them, including 566 with verified work emails. London is the largest hub.

This list covers company matches for back office services companies associated with the 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 19, 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 19, 2026 How this list was built
338Companies
1,882Contacts tracked
566Verified emails
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The 25 largest back office services companies based in the United Kingdom

Ranked by team size
Top 25 of 338 company matches for back office services companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchManchester, United KingdomHQ recorded Sep 19, 2026201-500118 contacts →

Exact match

“Focus is a UK-managed outsourcing partner with a large dedicated offshore delivery team, built and proven inside real UK retail operations before we opened it to other brands.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchGlasgow, United KingdomHQ recorded Sep 19, 202651-20074 contacts →

Exact match

“Streamline your business with our bespoke support services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 19, 2026201-50070 contacts →

Exact match

“We are a 400 member strong, specialist business process outsourcing (BPO) provider that caters to the diverse and complex information processing needs of todays corporation.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchBeccles, United KingdomHQ recorded Sep 19, 202611-5047 contacts →

Exact match

“Leading providers of specialist support services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchTyne & Wear, United KingdomHQ recorded Sep 19, 202611-5033 contacts →

Exact match

“We are an award-winning customer experience optimisation provider based in the UK, delivering seamless 24/7 back and front office solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchChester, United KingdomHQ recorded Sep 19, 2026n/a32 contacts →

Exact match

“Invoice finance & back office support specialists.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchBromsgrove, United KingdomHQ recorded Sep 19, 202611-5032 contacts →

Exact match

“Almost every business can save time and money with smart outsourcing from Go-To - how much depends on you.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchSutton Coldfield, United KingdomHQ recorded Sep 19, 202611-5025 contacts →

Exact match

“At Freedom Outsourcing, we specialise in Business Process Outsourcing (BPO) to help businesses save money and grow faster with UK managed outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchBorehamwood, United KingdomHQ recorded Sep 19, 2026201-50025 contacts →

Exact match

“Businesses today are under more pressure than ever before to reduce risk, drive efficiency and create consistency.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5024 contacts →

Exact match

“Oakford Advisors Ltd, a Centralis Group company, is an outsourced business services firm which specialises in providing back-office support to start-up or existing companies…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchNantwich, United KingdomHQ recorded Sep 19, 202611-5023 contacts →

Exact match

“The CE team specialises in helping organisations deliver their HR and payroll changes and run critical outsourced payroll services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchBirmingham, United KingdomHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“If you run an accountancy or bookkeeping firm, we can help you overcome your staff recruitment and retention challenges with our outsourcing and offshoring solutions that are…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchBolton, United KingdomHQ recorded Sep 19, 202611-5021 contacts →

Exact match

“Winnors provide qualified accountants and VA's and half the costs of recruiting locally.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchCroydon, United KingdomHQ recorded Sep 19, 2026201-50020 contacts →

Exact match

“In 1995 the Doshi family set up Doshi & Co in London as an accountancy practice for UK clients and simply offshored their very own back office in Gujarat, India in - a location…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchRayleigh, United KingdomHQ recorded Sep 19, 202611-5019 contacts →

Exact match

“WOULD YOU LIKE TO REMOVE PAYROLL FROM YOUR PRACTICE?”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 19, 2026n/a18 contacts →

Exact match

“FNZ Securities offers Back and Middle Office services, including the protection of Client Assets and Client Money and state of the art front office software to the wealth…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchLeeds, United KingdomHQ recorded Sep 19, 20261-1017 contacts →

Exact match

“We combine the perfect mix of industry-leading technology and personnel to support you in managing your workforce with greater efficiency than ever before.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5016 contacts →

Exact match

“With over 20+ years of experience, ASESA Solutions Ltd offers world-class financial services, including comprehensive accounts management, precise bookkeeping, strategic HR…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchSelby, United KingdomHQ recorded Sep 19, 202611-5015 contacts →

Exact match

“Here at Backoffice we offer a choice of services designed to meet both the agency and operative’s needs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchWest Wickham, United KingdomHQ recorded Sep 19, 202611-5015 contacts →

Exact match

“When you engage us to act as your outsourced finance team, we not only provide financial and business support, but in conjunction with our wider community of legal experts and tax…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchWalsall, United KingdomHQ recorded Sep 19, 202611-5015 contacts →

Exact match

“We provide business support services including VAT, Payroll, Debt Recovery, Credit Control, Invoicing, Data Entry and Compliance.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchHitchin, United KingdomHQ recorded Sep 19, 20261-1014 contacts →

Exact match

“Modina is a friendly, professional outsourcing service dedicated to helping you stay in control of your bookkeeping and payroll.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 19, 2026n/a13 contacts →

Exact match

“Capita is the UK's leading FTSE100 outsourcing company.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“We bring our extensive industry experience to the hum-drum of finance, HR, operations, marketing and compliance so that you can focus on delivering the fun to your customers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchLancaster, United KingdomHQ recorded Sep 19, 20261-1010 contacts →

Exact match

“Accounts Matters provides a range of accounting, book keeping, payroll and other related business services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 338 back office services companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 566 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Back office services companies based in the United Kingdom at a glance

As of Sep 19, 2026
30.1%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
19.8%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
234
11-50
75
51-200
15
201-500
7
501-1,000
2
1,001-5,000
1
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 338 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 the United Kingdom whose business descriptions match “back office services companies” 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 566 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 19, 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 “back office services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many back office services companies are there based in the United Kingdom?

RevenueBase identified 338 company matches for back office services companies associated with the 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?

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

Which city has the most back office services companies?

London leads with 67 company records, followed by Manchester (8) and Birmingham (6).

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 566 professional contacts with verified work emails tracked across these 338 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 19, 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 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.