Company lists · Data refreshed September 2026

Top 25 Financial business process outsourcing companies based in the United Kingdom

RevenueBase identified 276 company matches for financial business process outsourcing companies associated with the United Kingdom as of September 2026 and tracks 3,014 professional contacts across them, including 757 with verified work emails. London is the largest hub.

This list covers company matches for financial business process outsourcing 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 28, 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 28, 2026 How this list was built
276Companies
3,014Contacts tracked
757Verified emails
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The 25 largest financial business process outsourcing companies based in the United Kingdom

Ranked by team size
Top 25 of 276 company matches for financial business process outsourcing companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 2026501-1,000322 contacts →

Exact match

“At SKS, we pride ourselves on being different.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500311 contacts →

Exact match

“GI Outsourcing is a UK-based accountants outsourcing firm.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchRushden, United KingdomHQ recorded Sep 28, 2026n/a166 contacts →

Exact match

“For your business to succeed.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchExeter, United KingdomHQ recorded Sep 28, 2026n/a141 contacts →

Exact match

“Your business will take you on a journey, from the earliest days as a start up, through to growth into a business that employs a team, manages complex transactions and deals with…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500103 contacts →

Exact match

“we redefine business process outsourcing, empowering companies to broaden their horizons.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20063 contacts →

Exact match

“ARNA Accounting Pvt Limited is expert in FinTech.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSurbiton, United KingdomHQ recorded Sep 28, 202611-5063 contacts →

Exact match

“IYKONS – 17 Years of Empowering Businesses Since 2008, IYKONS has been transforming the way businesses operate, delivering trusted solutions that integrate Accounting & Finance…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchBrighouse, United KingdomHQ recorded Sep 28, 202611-5062 contacts →

Exact match

“Greybeard Solutions provides expert accounting outsourcing and business process automation services to SMEs worldwide.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchHenley-on-thames, United KingdomHQ recorded Sep 28, 202611-5031 contacts →

Exact match

“Working with companies and business leaders, Verallo's experienced team quickly analyses each client's needs to deliver highly personalised business services that take a strategic…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchGlasgow City, United KingdomHQ recorded Sep 28, 202611-5029 contacts →

Exact match

“At Accountables, we manage the finance function for growing businesses across the US and UK, helping founders and CEOs make informed decisions with real-time financial insights.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchLeeds, United KingdomHQ recorded Sep 28, 202651-20026 contacts →

Exact match

“SNT Group is a service led business, providing our clients with best of breed technologies and services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSutton Coldfield, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
14Exact matchBorehamwood, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
16Exact matchPreston, United KingdomHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Top Resource Group is your one-stop ally for all business outsourcing needs.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchCroydon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
18Exact matchLeeds, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“Excelsious provides accounting, bookkeeping and finance function outsourcing services to accountancy firms and small to medium enterprises.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchHitchin, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 28, 2026n/a13 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchManchester, United KingdomHQ recorded Sep 28, 2026201-50013 contacts →

Exact match

“Our mission at Clearcut Outsourcing is to provide exceptional accountancy outsourcing services to accountancy firms of all sizes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“At Fresh Financials, we offer a suite of financial operations services designed to simplify your business.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“As specialist providers of outsourced bookkeeping, management accounts and payroll solutions, we work with clients spanning a range of sectors across the various stages of the…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchHull, United KingdomHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“From the decision to start up, the development of strategic options and planning, the implementation of control & performance measurement systems, and profit distribution each…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 276 financial business process outsourcing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 757 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Financial business process outsourcing companies based in the United Kingdom at a glance

As of Sep 28, 2026
25.1%Verified-email coverage
10.9Average contacts per company
1-10Median size (employees)
30.1%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
158
11-50
77
51-200
20
201-500
12
501-1,000
3
1,001-5,000
1
10001+
2

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 276 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 “financial business process outsourcing 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 757 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 28, 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.

Financial business process outsourcing companies by metro

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 “financial business process outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many financial business process outsourcing companies are there based in the United Kingdom?

RevenueBase identified 276 company matches for financial business process outsourcing 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?

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

Which city has the most financial business process outsourcing companies?

London leads with 83 company records, followed by Leeds (7) and Manchester (7).

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 757 professional contacts with verified work emails tracked across these 276 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 276 financial business process outsourcing companies based in the United Kingdom. Start with a free account, no credit card.

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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.