Company lists · Data refreshed September 2026

Top 25 B2B service providers based in the United Kingdom

RevenueBase identified 965 company matches for B2B service providers associated with the United Kingdom as of September 2026 and tracks 5,830 professional contacts across them, including 1,228 with verified work emails. London is the largest hub.

This list covers company matches for B2B service providers 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
965Companies
5,830Contacts tracked
1,228Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest B2B service providers based in the United Kingdom

Ranked by team size
Top 25 of 965 company matches for B2B service providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchChelmsford, United KingdomHQ recorded Sep 21, 2026501-1,000353 contacts →

Exact match

“Welcome to the fast moving world of Woodland.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200184 contacts →

Exact match

“Qogita is a leading global wholesale B2B platform that offers a wide variety of products, brands and categories across geographies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200139 contacts →

Exact match

“Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchBelfast, United KingdomHQ recorded Sep 21, 202651-20093 contacts →

Exact match

“BDO NI specialises in helping businesses, whether start-ups or multinationals, to grow.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20091 contacts →

Exact match

“Ovyo provides rapid access to specialist people and teams in software engineering, operations & delivery throughout the streaming/OTT/media, satellite/space and comms industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchSwindon, United KingdomHQ recorded Sep 21, 202651-20072 contacts →

Exact match

“Excalibur provides an end to end business consulting service that offers reliable insight, and expertise in communications and technology.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchChippenham, United KingdomHQ recorded Sep 21, 2026n/a70 contacts →

Exact match

“Purpol Marketing.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,00051 contacts →

Exact match

“At The Marketing Practice, we’ve combined the best B2B specialists from across the globe in one business, with capabilities that stretch through the funnel, from brand to demand…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchPetts Wood, United KingdomHQ recorded Sep 21, 202611-5048 contacts →

Exact match

“Business Advantage is a B2B research, business development and marketing consulting practice operating in the global IT, Digital and Telecommunications sectors.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchEllesmere Port, United KingdomHQ recorded Sep 21, 202651-20045 contacts →

Exact match

“Advance Connects are a B2B telemarketing, lead generation & appointment scheduling experts, operating within various sectors including construction, built environment, industrial…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5043 contacts →

Exact match

“Pipeline is a collective of sales professionals, united in our passion and drive for commercial success.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20036 contacts →

Exact match

“Kelmer Group is an International Business Consulting company, providing its clients with customized solutions to help them expand their business around the world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchUk, United KingdomHQ recorded Sep 21, 202651-20035 contacts →

Exact match

“Taskaler is a business process outsourcing (BPO) provider specialising in customer services and back-office support for retail and eCommerce.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchReigate, United KingdomHQ recorded Sep 21, 202611-5034 contacts →

Exact match

“Class Networks was acquired by SCG in March 2021, and we have now joined Southern Communications Corporate Solutions, rebranding as SCG Corporate.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20032 contacts →

Exact match

“The Conexus Group is a portfolio of world-class businesses specialising in the provision of recruitment, training, consulting, M&A Advisory, marketing and managed services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchMarlow, United KingdomHQ recorded Sep 21, 202611-5032 contacts →

Exact match

“We are a group of experienced professionals who work towards ascending your company to new heights through consultancy and business advice.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchWorcester, United KingdomHQ recorded Sep 21, 202651-20029 contacts →

Exact match

“A fashionable, contemporary and forward-thinking, brokerage for business essential resources/services, with an ear to the ground and a finger on the pulse.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“At digiio we pioneer innovative campaigns, approaches and intelligence that unlock interest and capture the imagination of our client’s customers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchGlasgow, United KingdomHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Generating high-quality B2B sales leads for your business!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchLeeds, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“Aim Ltd is a UK based International business to business service provider delivering a fusion of business services and technology solutions to organisations through our…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchUnited KingdomHQ recorded Sep 21, 202651-20024 contacts →

Exact match

“GCL, with its unique, non-scripted approach to telemarketing and related marketing services, has for over 30 years established an enviable reputation for providing winning lead…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchNorwich, United KingdomHQ recorded Sep 21, 20261-1024 contacts →

Exact match

“Sawraj Consultants Ltd | Providing Customised Business Solutions Sawraj Consultants Ltd is an upright consulting company that is constantly providing the customised solutions for…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 21, 20261-1023 contacts →

Exact match

“At tkg, we empower organisations to outsource better.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 965 B2B service providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,228 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

B2B service providers based in the United Kingdom at a glance

As of Sep 21, 2026
21.1%Verified-email coverage
6.0Average contacts per company
1-10Median size (employees)
33.2%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
711
11-50
186
51-200
46
201-500
12
501-1,000
4
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 965 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 “B2B service providers” 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 1,228 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 “B2B service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B service providers are there based in the United Kingdom?

RevenueBase identified 965 company matches for B2B service providers 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?

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

Which city has the most B2B service providers?

London leads with 320 company records, followed by Manchester (27) and Birmingham (16).

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 1,228 professional contacts with verified work emails tracked across these 965 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 965 B2B service providers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.