Company lists · Data verified August 2026

Top 25 Outsourced sales teams based in the United Kingdom

Name: Outsourced sales teams based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 477 companies tracked

There are 477 outsourced sales teams headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,673 professional contacts across them, including 839 with verified work emails and 165 with mobile numbers. London is the largest hub.

This list covers outsourced sales teams headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

477Companies

3,673Contacts tracked

839Verified emails

165Mobile numbers

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The 25 largest outsourced sales teams based in the United Kingdom

Ranked by team size

Top 25 of 477 outsourced sales teams based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Smartsourcing	Bristol	201-500	464	183
2	AIR Marketing	Exeter	51-200	123	47
3	EC Outsourcing Powered By Ison Xperiences	Sheffield	1,001-5,000	115	1
4	Durhamlane	Newcastle Upon Tyne	51-200	114	74
5	Alliance Sales Support Services Limited	Tunbridge Wells	51-200	80	64
6	Excelerate360	Hitchin	51-200	65	19
7	Everett SKY	n/a	51-200	59	30
8	Topboffin	London	51-200	53	6
9	FLY PIE LTD	London	51-200	49	8
10	Parallel Partnerships LTD	Leeds	51-200	43	7
11	Matter	Leeds	51-200	39	19
12	Stack Solutions Group	London	201-500	39	4
13	Seventic	London	11-50	38	4
14	Think Pipeline LTD	Woking	51-200	38	2
15	TELU	Leeds	51-200	32	6
16	Double Impact Group	London	51-200	30	1
17	The Lead Generation Company	Manchester Manchester	11-50	28	10
18	SLM Connect	Manchester	201-500	27	1
19	Force Recruitment And Outsourcing	Ely	51-200	26	15
20	Premium Sales Consultancy Limited	Lichfield	11-50	26	11
21	1call Direct	Glasgow	51-200	26	1
22	The Lead GEN Specialists	n/a	11-50	25	9
23	Outbound Partners	London	51-200	24	3
24	Operatix	Fleet	201-500	21	5
25	AGO Outsourcing	East Kilbride	51-200	19	1

Showing 25 of 477 outsourced sales teams based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 839 reachable decision-makers.

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Outsourced sales teams based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 152 HQs

165Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

300

11-50

125

51-200

201-500

501-1,000

1,001-5,000

10001+

Outsourced sales teams by metro

Metro	Companies
Outsourced sales teams in London	152
Outsourced sales teams in Manchester	30
Outsourced sales teams in Birmingham	11
Outsourced sales teams in Leeds	11
Outsourced sales teams in Newcastle Upon Tyne	7
Outsourced sales teams in Bristol	7
Outsourced sales teams in Liverpool	5

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “outsourced sales teams”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 8 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many outsourced sales teams are there based in the United Kingdom?

There are 477 outsourced sales teams headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Smartsourcing, headquartered in Bristol, tops this list with the largest team on record.

Which city has the most outsourced sales teams?

London leads with 152 headquartered companies, followed by Manchester (30) and Birmingham (11).

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 839 verified decision-maker contacts tracked across these 477 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.