Company lists · Data verified August 2026

Top 25 Client relationship management software companies based in the United Kingdom

Name: Client relationship management software companies 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 155 companies tracked

There are 155 client relationship management software companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 87,446 professional contacts across them, including 58,997 with verified work emails and 28,306 with mobile numbers. London is the largest hub.

This list covers client relationship management software 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. Data current as of August 28, 2026.

155Companies

87,446Contacts tracked

58,997Verified emails

28,306Mobile numbers

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The 25 largest client relationship management software companies based in the United Kingdom

Ranked by team size

Top 25 of 155 client relationship management software companies 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	Salesforce	London	10001+	85,557	58,153
2	Sugarai	London	501-1,000	565	319
3	Agentforce Commerce	London	10001+	175	99
4	ATTIO	London	51-200	141	92
5	Workbooks CRM	Reading	51-200	63	44
6	Capsule	Manchester	11-50	56	30
7	Optimiser	London	51-200	56	10
8	Passle	Oxford	11-50	54	39
9	Armadillo	Bristol	51-200	48	24
10	Eloqua	London	1,001-5,000	36	8
11	Moneyinfo	Henley-In-Arden	11-50	35	25
12	Plannr Technologies Limited	Waterlooville	11-50	33	27
13	Robosme	London	11-50	14	7
14	Akarigo	London	11-50	13	7
15	Opencrm	Richmond	11-50	12	8
16	Brightoffice	Preston	11-50	11	2
17	Buddycrm	Walsall	11-50	9	5
18	Salesmethods LTD	London	11-50	9	4
19	Repforce	London	11-50	8	5
20	Pulse Business Software	Malmesbury	11-50	8	4
21	Salesseek	London	11-50	7	1
22	Ienterprises	Bracknell	51-200	6	2
23	Advanced Software LTD	Newark	11-50	6	1
24	Cloudsmart Consulting	London	11-50	5	4
25	Glassjaw	London	11-50	5	3

Showing 25 of 155 client relationship management software companies based in the United Kingdom

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Client relationship management software companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 57 HQs

28,306Contacts with mobile numbers

303Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Client relationship management software companies by metro

Metro	Companies
Client relationship management software companies in London	57
Client relationship management software companies in Birmingham	4
Client relationship management software companies in Glasgow	4
Client relationship management software companies in Leeds	4
Client relationship management software companies in Bristol	3
Client relationship management software companies in Reading	3
Client relationship management software companies in Manchester	3

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 “client relationship management software companies”, 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; 303 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 client relationship management software companies are there based in the United Kingdom?

There are 155 client relationship management software companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Salesforce, headquartered in London, tops this list with the largest team on record.

Which city has the most client relationship management software companies?

London leads with 57 headquartered companies, followed by Birmingham (4) and Glasgow (4).

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 58,997 verified decision-maker contacts tracked across these 155 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.