Company lists · Data refreshed September 2026

Top 25 Financial services outsourcing companies based in the United Kingdom

RevenueBase identified 201 financial services outsourcing companies headquartered in the United Kingdom as of September 2026 and tracks 2,846 professional contacts across them, including 591 with verified work emails and 78 with mobile numbers. London is the largest hub.

This list covers financial services outsourcing companies headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review
201Companies
2,846Contacts tracked
591Verified emails
78Mobile numbers
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The 25 largest financial services outsourcing companies based in the United Kingdom

Ranked by team size
Top 25 of 201 financial services outsourcing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names financial services outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
SKS Business ServicesIndirect evidence
London, United Kingdom501-1,000321

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

Source: company website · checked Sep 2, 2026
2
GI OutsourcingPartial evidence
London, United Kingdom201-500317

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

Source: company website · checked Sep 2, 2026
3
Obox Solution LTDPartial evidence
London, United Kingdom201-500132

“At Obox Solution Ltd, we support accounting firms and mid-market businesses by providing tailored virtual staffing solutions for bookkeeping, payroll, CFO services, tax, financial…”

Source: company website · checked Sep 2, 2026
4London, United Kingdom501-1,000104

“Celebrating Excellence with Exquisite Solution Limited – Uganda's foremost Business Process Outsourcing authority, where excellence knows no bounds.”

Source: company website · checked Sep 2, 2026
5
Tellida Private LimitedPartial evidence
United Kingdom51-20073

“Tellida (Pvt) Ltd is a global outsourcing company providing Legal Process Outsourcing (LPO), Finance & Accounting Outsourcing (FAO), Contact Centre services, and Remote Business…”

Source: company website · checked Sep 2, 2026
6
Arna Accounting PVT LTDIndirect evidence
London, United Kingdom51-20063

“ARNA Accounting Pvt Limited is expert in FinTech.”

Source: company website · checked Sep 2, 2026
7
Direct ResponsePartial evidence
London, United Kingdom51-20046

“Direct Response can provide outsourcing of voice, data and contact centre services for organisation from a global business to a one-man operation, delivering outstanding service…”

Source: company website · checked Sep 2, 2026
8Gloucester, United Kingdom201-50040

“Headway BPO Solutions/Headway BPO of America is an international service provider that offers a diverse range of outsourcing, technology, and consulting services.”

Source: company website · checked Sep 2, 2026
9
accountables.comPartial evidence
Glasgow City, United Kingdom11-5029

“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.”

Source: company website · checked Sep 2, 2026
10
Oakford Advisors LTDIndirect evidence
Oxford, United Kingdom11-5024

“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…”

Source: company website · checked Sep 2, 2026
11
TOP Resource GroupPartial evidence
Preston, United Kingdom11-5022

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

Source: company website · checked Sep 2, 2026
12
Doshi OutsourcingIndirect evidence
Croydon, United Kingdom201-50020

“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…”

Source: company website · checked Sep 2, 2026
13
AGO OutsourcingPartial evidence
East Kilbride, United Kingdom51-20019

“AGO Outsourcing is a leading provider of outsourced business services, including inbound and outbound customer service and outbound sales as well as social media engagement…”

Source: company website · checked Sep 2, 2026
14
Capita Business ServicesPartial evidence
London, United Kingdomn/a14

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

Source: company website · checked Sep 2, 2026
15
Clearcut Outsourcing UKPartial evidence
Manchester, United Kingdom201-50013

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

Source: company website · checked Sep 2, 2026
16
MNE AccountingPartial evidence
Leicester, United Kingdom11-5012

“MNE is an innovative firm in the accountancy industry offering a full accounts outsourcing service for some of the UK’s leading businesses and brands.”

Source: company website · checked Sep 2, 2026
17
Rdbifs LTDPartial evidence
Kendal, United Kingdom11-507

“RDBIFS LTD is a financial services company based out of THE STABLES LEVENS HALL, KENDAL, United Kingdom.”

Source: company website · checked Sep 2, 2026
18
K Q Consultants LTDStrong evidence
Sheffield, United Kingdom11-506

“KQ Consultants is a group of Companies providing wide range of services to financial industry such as Business Management, Business Development, Business Process Outsourcing…”

Source: company website · checked Sep 2, 2026
19
Oilex LTDIndirect evidence
Kirkton Of Skene, United Kingdom51-2005
Source: company website · checked Sep 2, 2026
20
SNA Strats LimitedPartial evidence
Sheffield, United Kingdom11-504

“We are not your typical finance and accounting / legal process outsourcing service provider.”

Source: company website · checked Sep 2, 2026
21
Evolve OutsourceIndirect evidence
Birmingham, United Kingdom11-504

“We are one of the leading outsource providers in the accounting industry.”

Source: company website · checked Sep 2, 2026
22
FinconcilePartial evidence
London, United Kingdom11-504

“We enable Accounting firms in the UK to avoid strains on their operations, growth prospects & profit margins by outsourcing their work requirements to our experienced & accredited…”

Source: company website · checked Sep 2, 2026
23
ProficientPartial evidence
Egerton, United Kingdom201-5003

“Proficient is the outsourcing arm of Broker Direct Plc.”

Source: company website · checked Sep 2, 2026
24
Osrec TechnologiesStrong evidence
London, United Kingdom51-2003

“OSREC is a London based provider of financial consuting and outsourcing services.”

Source: company website · checked Sep 2, 2026
25
GLC Globe PVT LTDPartial evidence
Harrow, United Kingdom11-503

“GLC Globe is a business process outsourcing company providing finance, accounts, payroll and corporate advisory services.”

Source: company website · checked Sep 2, 2026

Showing 25 of 201 financial services outsourcing companies based in the United Kingdom

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Financial services outsourcing companies based in the United Kingdom at a glance

As of Sep 2, 2026
1-10Median size (employees)
LondonLargest hub · 61 HQs
78Contacts with mobile numbers
Sep 2, 2026Data refreshed

Companies by employee count

1-10
108
11-50
46
51-200
22
201-500
14
501-1,000
3
1,001-5,000
1
10001+
1

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 financial services outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “financial services outsourcing companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among financial services outsourcing companies, and records with no verified work email. Companies headquartered outside United Kingdom 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 an evidence 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, 591 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 2, 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.

Financial services outsourcing companies by metro

  • Financial services outsourcing companies in London61

Frequently asked

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

RevenueBase identified 201 financial services outsourcing companies headquartered in the 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?

SKS Business Services, headquartered in London, tops this list with the largest team on record.

Which city has the most financial services outsourcing companies?

London leads with 61 headquartered companies, followed by Leicester (5) and Glasgow (3).

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 591 verified decision-maker contacts tracked across these 201 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 2, 2026.

Ready to reach these companies? Verified emails and direct dials for all 201 financial services 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.