Company lists · Data refreshed September 2026

Top 25 Controller services outsourcing companies based in the United Kingdom

RevenueBase identified 1,110 company matches for controller services outsourcing companies associated with the United Kingdom as of September 2026 and tracks 4,669 professional contacts across them, including 1,298 with verified work emails. London is the largest hub.

This list covers company matches for controller services 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 27, 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 27, 2026 How this list was built
1,110Companies
4,669Contacts tracked
1,298Verified emails
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The 25 largest controller services outsourcing companies based in the United Kingdom

Ranked by team size
Top 25 of 1,110 company matches for controller services outsourcing companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 2026201-500311 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchRushden, United KingdomHQ recorded Sep 27, 2026n/a166 contacts →

Exact match

“For your business to succeed.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchWembley, United KingdomHQ recorded Sep 27, 2026201-50064 contacts →

Exact match

“Affinity Associates Limited is a leading accounting firm based in Wembley, London, UK, and is regulated and authorised for public practice by both the ICAEW (Institute of…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchCambridge, United KingdomHQ recorded Sep 27, 202651-20044 contacts →

Exact match

“We offer a CFO-led virtual finance team.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5044 contacts →

Exact match

“In business we grow, we develop, and we change, ensure you are working with an accountancy firm that will see and understand your brand and your goals.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5033 contacts →

Exact match

“Complete Accounting Solutions is a firm of dedicated individuals focussed on providing small and growing companies with support on the accounts and bookkeeping activities of their…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5032 contacts →

Exact match

“Beany are accountants for ambitious businesses, delivering big firm expertise without the big cost.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBromsgrove, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
9Exact matchCirencester, United KingdomHQ recorded Sep 27, 20261-1030 contacts →

Exact match

“We found that there was often a breakdown in service between your bookkeeper and your accountant and that more often than not the accountant was spending a majority of their time…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchGlasgow City, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
11Exact matchNorwich, United KingdomHQ recorded Sep 27, 202611-5028 contacts →

Exact match

“GLX is an independent firm of chartered accountants based in East Anglia, servicing clients throughout the country.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchRamsbottom, United KingdomHQ recorded Sep 27, 202611-5027 contacts →

Exact match

“Financial experts offering management accounts, bookkeeping, credit control, payroll and project services onsite at your premises or offsite.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchLeeds, United KingdomHQ recorded Sep 27, 202611-5027 contacts →

Exact match

“Rabb-IT is a team of IT outsourcing experts based in Leeds, West Yorkshire.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
15Exact matchBirmingham, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
16Exact matchCambridge, United KingdomHQ recorded Sep 27, 20261-1021 contacts →

Exact match

“We are a small accountancy firm with offices in Cambridge and Stamford.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchCroydon, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
18Exact matchTamworth, United KingdomHQ recorded Sep 27, 202611-5019 contacts →

Exact match

“As experienced accountants and business advisers with forward-thinking attitudes and a passion for achieving your business goals, we offer a personalised service akin to you…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchGloucester, United KingdomHQ recorded Sep 27, 202611-5019 contacts →

Exact match

“Outsourcing accounts is no longer just for big business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchEast Kilbride, United KingdomHQ recorded Sep 27, 202651-20019 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchHarrow, United KingdomHQ recorded Sep 27, 202611-5018 contacts →

Exact match

“Established in 2006, 3ES Accountants Ltd is a Harrow-based accountancy firm offering a myriad of accounting and financial services to businesses of all types.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchPoole, United KingdomHQ recorded Sep 27, 20261-1018 contacts →

Exact match

“At Ookkee we are aiming to get business owners back in touch with the numbers.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 27, 20261-1016 contacts →

Exact match

“We are a team of qualified accountants with years of experience running SME businesses.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 1,110 controller services outsourcing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,298 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 27, 2026
27.8%Verified-email coverage
4.2Average contacts per company
1-10Median size (employees)
21.3%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
907
11-50
150
51-200
33
201-500
9
501-1,000
2
1,001-5,000
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 1,110 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 “controller services 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 1,298 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 27, 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.

Controller services 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 “controller services outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,110 company matches for controller services 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?

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

Which city has the most controller services outsourcing companies?

London leads with 236 company records, followed by Bristol (19) and Manchester (19).

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 1,298 professional contacts with verified work emails tracked across these 1,110 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 27, 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.