Company lists · Data refreshed September 2026
Top 25 Outsourced administration services based in the United Kingdom
RevenueBase identified 540 company matches for outsourced administration services associated with the United Kingdom as of September 2026 and tracks 2,202 professional contacts across them, including 652 with verified work emails. London is the largest hub.
This list covers company matches for outsourced administration services 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 21, 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.
The 25 largest outsourced administration services based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 311 contacts → | ||||
Exact match “GI Outsourcing is a UK-based accountants outsourcing firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 111 contacts → | ||||
Exact match “Strictly Education exists to make the management and administration of educational establishments easier and less stressful.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 74 contacts → | ||||
Exact match “Streamline your business with our bespoke support services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 47 contacts → | ||||
Exact match “Leading providers of specialist support services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 42 contacts → | ||||
Exact match “There has always been a demand in the insurance market for third party administration services to allow insurers, brokers, corporates and affinities to focus on their core…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 41 contacts → | ||||
Exact match “Welcome to Factotum-your secret weapon for streamlined business success!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 32 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 21, 2026 · View company records in RevenueBase | |||||
| 8 | 25 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 21, 2026 · View company records in RevenueBase | |||||
| 9 | 24 contacts → | ||||
Exact match “Wessex Group is an independent provider of intermediary services to the financial services industry specialising in the administration of personal lines insurance.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 24 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 21, 2026 · View company records in RevenueBase | |||||
| 11 | 15 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 21, 2026 · View company records in RevenueBase | |||||
| 12 | 15 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 21, 2026 · View company records in RevenueBase | |||||
| 13 | 15 contacts → | ||||
Exact match “Bookkeeping, business support and PA services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “The Intuitive Team has been providing outsourced administration support to UK financial advice firms since 2014.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 14 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 21, 2026 · View company records in RevenueBase | |||||
| 16 | 13 contacts → | ||||
Exact match “Adviser Outsourcing provide bespoke outsourced and consultancy services to Financial advice firms that provide reliability, flexibility and above all else expertise within the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 12 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 21, 2026 · View company records in RevenueBase | |||||
| 18 | 12 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 12 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 21, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Bookkeeping, Admin and PA support.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match “Admin Business Solutions Limited (ABS) was founded in 1998, with the key objective to offer a dedicated and comprehensive means of outsource support for Fleet Administration…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “We provide businesses with a robust, reliable, and helpful HR service, that offers complete peace of mind.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “Efficiency Back Office Services (Pty) Ltd started in 2022 and is an outsourcing back-office administration company that specialises in providing skilled and fully managed…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “We are a team of professionals to assist in the start-up, planning, and administration of the business in order to meet the accounting and tax requirements of individuals, small…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “Providing "evolved administration" in a forward-thinking way.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “outsourced administration services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 540 outsourced administration services based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 652 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Outsourced administration services based in the United Kingdom at a glance
As of Sep 21, 2026Companies by employee count
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 540 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 “outsourced administration services” 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 652 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 21, 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 “outsourced administration services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many outsourced administration services are there based in the United Kingdom?
RevenueBase identified 540 company matches for outsourced administration services 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 outsourced administration services?
London leads with 87 company records, followed by Manchester (15) and Glasgow (10).
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 652 professional contacts with verified work emails tracked across these 540 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 540 outsourced administration services based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Outsourced administration services by geography
- Outsourced administration services based in Sao Paulo, Brazil
- Outsourced administration services based in Ahmedabad, India
- Outsourced administration services based in Mumbai, India
- Outsourced administration services based in Houston, United States
- Outsourced administration services based in New York, United States
- Outsourced administration services based in Australia
- Outsourced administration services based in Belgium
- Outsourced administration services based in Brazil
- Outsourced administration services based in Canada
- Outsourced administration services based in Chile
- Outsourced administration services based in Colombia
- Outsourced administration services based in Denmark
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Outsourced administration services based in Sao Paulo, Brazil
- Outsourced administration services based in Ahmedabad, India
- Outsourced administration services based in Mumbai, India
- Outsourced administration services based in Houston, United States
- Outsourced administration services based in New York, United States
- Outsourced administration services based in Australia
Company intelligence · public preview
Top 25 outsourced administration services based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 540 matching company records for outsourced administration services based in the United Kingdom, with 2,202 tracked contacts and 652 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 outsourced administration services based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  GI Outsourcinggioutsourcing.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 311 contacts → |
“GI Outsourcing is a UK-based accountants outsourcing firm.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Strictly Education LTDstrictlyeducation.co.uk HQ: Milton Keynes, United KingdomReported employees: 51-200 | Milton Keynes, United Kingdom | 51-200 | Exact match | 111 contacts → |
“Strictly Education exists to make the management and administration of educational establishments easier and less stressful.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  SOLVDsolvd.solutionsHQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 74 contacts → |
“Streamline your business with our bespoke support services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Industry Resource Services IRS Groupirs-group.co.ukHQ: Beccles, United KingdomReported employees: 11-50 | Beccles, United Kingdom | 11-50 | Exact match | 47 contacts → |
“Leading providers of specialist support services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Uris Groupurisgroup.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 42 contacts → |
“There has always been a demand in the insurance market for third party administration services to allow insurers, brokers, corporates and affinities to focus on their core…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Factotumfactotum.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Welcome to Factotum-your secret weapon for streamlined business success!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Go-To Outsourcinggo-to-outsourcing.com HQ: Bromsgrove, United KingdomReported employees: 11-50 | Bromsgrove, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Almost every business can save time and money with smart outsourcing from Go-To - how much depends on you.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Freedom Outsourcingfreedomoutsourcing.co.ukHQ: Sutton Coldfield, United KingdomReported employees: 11-50 | Sutton Coldfield, United Kingdom | 11-50 | Exact match | 25 contacts → |
“At Freedom Outsourcing, we specialise in Business Process Outsourcing (BPO) to help businesses save money and grow faster with UK managed outsourcing solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Wessex Groupwessex-group.co.uk HQ: Winchester, United KingdomReported employees: 51-200 | Winchester, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Wessex Group is an independent provider of intermediary services to the financial services industry specialising in the administration of personal lines insurance.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Oakford Advisors LTDoakfordadvisors.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Backoffice Nationwide LTDbackofficenationwide.co.ukHQ: Selby, United KingdomReported employees: 11-50 | Selby, United Kingdom | 11-50 | Exact match | 15 contacts → |
“Here at Backoffice we offer a choice of services designed to meet both the agency and operative’s needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Withall & CO LTDwithallco.comHQ: West Wickham, United KingdomReported employees: 11-50 | West Wickham, United Kingdom | 11-50 | Exact match | 15 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Hour Hands LTDhourhands.co.uk HQ: Harpenden, United KingdomReported employees: 1-10 | Harpenden, United Kingdom | 1-10 | Exact match | 15 contacts → |
“Bookkeeping, business support and PA services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Intuitive Supportintuitivesupportservices.comHQ: Colchester, United KingdomReported employees: 11-50 | Colchester, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The Intuitive Team has been providing outsourced administration support to UK financial advice firms since 2014.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Modinamodina.co.ukHQ: Hitchin, United KingdomReported employees: 1-10 | Hitchin, United Kingdom | 1-10 | Exact match | 14 contacts → |
“Modina is a friendly, professional outsourcing service dedicated to helping you stay in control of your bookkeeping and payroll.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Adviser Outsourcing LTDadviseroutsourcing.comHQ: Hinckley, United KingdomReported employees: 1-10 | Hinckley, United Kingdom | 1-10 | Exact match | 13 contacts → |
“Adviser Outsourcing provide bespoke outsourced and consultancy services to Financial advice firms that provide reliability, flexibility and above all else expertise within the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  BCA Accountants And Business Advisorsbankscooper.co.ukHQ: Hull, United KingdomReported employees: 11-50 | Hull, United Kingdom | 11-50 | Exact match | 12 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  MNE Accountingmneaccounting.co.ukHQ: Leicester, United KingdomReported employees: 11-50 | Leicester, United Kingdom | 11-50 | Exact match | 12 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  IH Solutionsih.solutionsHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  The Paperwork Teamthepaperworkteam.comHQ: Shipston-on-stour, United KingdomReported employees: 11-50 | Shipston-on-stour, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Bookkeeping, Admin and PA support.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Admin Business Solutionsadminbusinesssolutions.co.ukHQ: Solihull, United KingdomReported employees: 11-50 | Solihull, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Admin Business Solutions Limited (ABS) was founded in 1998, with the key objective to offer a dedicated and comprehensive means of outsource support for Fleet Administration…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Hive HR Solutions LTDhivehrsolutions.co.uk HQ: Horsham, United KingdomReported employees: 1-10 | Horsham, United Kingdom | 1-10 | Exact match | 9 contacts → |
“We provide businesses with a robust, reliable, and helpful HR service, that offers complete peace of mind.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Efficiency Back Office Services PTY LTDefficiencybos.comHQ: Crawley, United KingdomReported employees: 11-50 | Crawley, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Efficiency Back Office Services (Pty) Ltd started in 2022 and is an outsourcing back-office administration company that specialises in providing skilled and fully managed…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Zion Accountants & Consultantszionaccountants.comHQ: Croydon, United KingdomReported employees: 1-10 | Croydon, United Kingdom | 1-10 | Exact match | 8 contacts → |
“We are a team of professionals to assist in the start-up, planning, and administration of the business in order to meet the accounting and tax requirements of individuals, small…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Accucoaccuco.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Providing "evolved administration" in a forward-thinking way.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 540 company matches
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Outsourced administration services: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
537 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 540 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for outsourced administration services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many outsourced administration services did RevenueBase find based in the United Kingdom?
The saved snapshot records 540 matching company records, 2,202 tracked contacts and 652 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Outsourced administration services by geography
- Outsourced administration services based in Sao Paulo, Brazil
- Outsourced administration services based in Ahmedabad, India
- Outsourced administration services based in Mumbai, India
- Outsourced administration services based in Houston, United States
- Outsourced administration services based in New York, United States
- Outsourced administration services based in Australia
- Outsourced administration services based in Belgium
- Outsourced administration services based in Brazil
- Outsourced administration services based in Canada
- Outsourced administration services based in Chile
- Outsourced administration services based in Colombia
- Outsourced administration services based in Denmark
Cite this list
RevenueBase Data Team. Top 25 outsourced administration services based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/outsourced-administration-services/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Outsourced administration services based in Sao Paulo, Brazil
- Outsourced administration services based in Ahmedabad, India
- Outsourced administration services based in Mumbai, India
- Outsourced administration services based in Houston, United States
- Outsourced administration services based in New York, United States
- Outsourced administration services based in Australia
Company intelligence · public preview
Top 25 outsourced administration services based in the United Kingdom
RevenueBase records 540 matching company records for outsourced administration services based in the United Kingdom, with 2,202 tracked contacts and 652 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 outsourced administration services based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | GI Outsourcinggioutsourcing.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 311 contacts → |
“GI Outsourcing is a UK-based accountants outsourcing firm.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Strictly Education LTDstrictlyeducation.co.uk HQ: Milton Keynes, United KingdomReported employees: 51-200 | Milton Keynes, United Kingdom | 51-200 | Exact match | 111 contacts → |
“Strictly Education exists to make the management and administration of educational establishments easier and less stressful.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | SOLVDsolvd.solutions HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 74 contacts → |
“Streamline your business with our bespoke support services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Industry Resource Services IRS Groupirs-group.co.uk HQ: Beccles, United KingdomReported employees: 11-50 | Beccles, United Kingdom | 11-50 | Exact match | 47 contacts → |
“Leading providers of specialist support services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Uris Groupurisgroup.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 42 contacts → |
“There has always been a demand in the insurance market for third party administration services to allow insurers, brokers, corporates and affinities to focus on their core…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Factotumfactotum.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Welcome to Factotum-your secret weapon for streamlined business success!” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Go-To Outsourcinggo-to-outsourcing.com HQ: Bromsgrove, United KingdomReported employees: 11-50 | Bromsgrove, United Kingdom | 11-50 | Exact match | 32 contacts → |
“Almost every business can save time and money with smart outsourcing from Go-To - how much depends on you.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Freedom Outsourcingfreedomoutsourcing.co.uk HQ: Sutton Coldfield, United KingdomReported employees: 11-50 | Sutton Coldfield, United Kingdom | 11-50 | Exact match | 25 contacts → |
“At Freedom Outsourcing, we specialise in Business Process Outsourcing (BPO) to help businesses save money and grow faster with UK managed outsourcing solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Wessex Groupwessex-group.co.uk HQ: Winchester, United KingdomReported employees: 51-200 | Winchester, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Wessex Group is an independent provider of intermediary services to the financial services industry specialising in the administration of personal lines insurance.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Oakford Advisors LTDoakfordadvisors.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Backoffice Nationwide LTDbackofficenationwide.co.uk HQ: Selby, United KingdomReported employees: 11-50 | Selby, United Kingdom | 11-50 | Exact match | 15 contacts → |
“Here at Backoffice we offer a choice of services designed to meet both the agency and operative’s needs.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Withall & CO LTDwithallco.com HQ: West Wickham, United KingdomReported employees: 11-50 | West Wickham, United Kingdom | 11-50 | Exact match | 15 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Hour Hands LTDhourhands.co.uk HQ: Harpenden, United KingdomReported employees: 1-10 | Harpenden, United Kingdom | 1-10 | Exact match | 15 contacts → |
“Bookkeeping, business support and PA services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Intuitive Supportintuitivesupportservices.com HQ: Colchester, United KingdomReported employees: 11-50 | Colchester, United Kingdom | 11-50 | Exact match | 14 contacts → |
“The Intuitive Team has been providing outsourced administration support to UK financial advice firms since 2014.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Modinamodina.co.uk HQ: Hitchin, United KingdomReported employees: 1-10 | Hitchin, United Kingdom | 1-10 | Exact match | 14 contacts → |
“Modina is a friendly, professional outsourcing service dedicated to helping you stay in control of your bookkeeping and payroll.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Adviser Outsourcing LTDadviseroutsourcing.com HQ: Hinckley, United KingdomReported employees: 1-10 | Hinckley, United Kingdom | 1-10 | Exact match | 13 contacts → |
“Adviser Outsourcing provide bespoke outsourced and consultancy services to Financial advice firms that provide reliability, flexibility and above all else expertise within the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | BCA Accountants And Business Advisorsbankscooper.co.uk HQ: Hull, United KingdomReported employees: 11-50 | Hull, United Kingdom | 11-50 | Exact match | 12 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | MNE Accountingmneaccounting.co.uk HQ: Leicester, United KingdomReported employees: 11-50 | Leicester, United Kingdom | 11-50 | Exact match | 12 contacts → |
“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.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | IH Solutionsih.solutions HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“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 description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | The Paperwork Teamthepaperworkteam.com HQ: Shipston-on-stour, United KingdomReported employees: 11-50 | Shipston-on-stour, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Bookkeeping, Admin and PA support.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Admin Business Solutionsadminbusinesssolutions.co.uk HQ: Solihull, United KingdomReported employees: 11-50 | Solihull, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Admin Business Solutions Limited (ABS) was founded in 1998, with the key objective to offer a dedicated and comprehensive means of outsource support for Fleet Administration…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Hive HR Solutions LTDhivehrsolutions.co.uk HQ: Horsham, United KingdomReported employees: 1-10 | Horsham, United Kingdom | 1-10 | Exact match | 9 contacts → |
“We provide businesses with a robust, reliable, and helpful HR service, that offers complete peace of mind.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Efficiency Back Office Services PTY LTDefficiencybos.com HQ: Crawley, United KingdomReported employees: 11-50 | Crawley, United Kingdom | 11-50 | Exact match | 8 contacts → |
“Efficiency Back Office Services (Pty) Ltd started in 2022 and is an outsourcing back-office administration company that specialises in providing skilled and fully managed…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Zion Accountants & Consultantszionaccountants.com HQ: Croydon, United KingdomReported employees: 1-10 | Croydon, United Kingdom | 1-10 | Exact match | 8 contacts → |
“We are a team of professionals to assist in the start-up, planning, and administration of the business in order to meet the accounting and tax requirements of individuals, small…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Accucoaccuco.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Providing "evolved administration" in a forward-thinking way.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 540 company matches
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Outsourced administration services: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
537 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 540 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for outsourced administration services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many outsourced administration services did RevenueBase find based in the United Kingdom?
The saved snapshot records 540 matching company records, 2,202 tracked contacts and 652 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 outsourced administration services based in the United Kingdom. Snapshot: September 21, 2026. https://revenuebase.ai/companies/outsourced-administration-services/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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