Company lists · Data verified August 2026

Top 25 B2B SaaS companies based in the United Kingdom

Name: B2B SaaS 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 232 companies tracked

There are 232 B2B SaaS companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 2,289 professional contacts across them, including 745 with verified work emails and 189 with mobile numbers. London is the largest hub.

This list covers B2B SaaS 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.

232Companies

2,289Contacts tracked

745Verified emails

189Mobile numbers

Unlock all 232 companies Free account · no credit card · 2 minutes

The 25 largest B2B SaaS companies based in the United Kingdom

Ranked by team size

Top 25 of 232 B2B SaaS 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	Priority Software	Oxford	501-1,000	426	263
2	Softbrands	n/a	501-1,000	177	16
3	Onlyoffice	London	51-200	125	2
4	Workbooks CRM	Reading	51-200	63	44
5	Capsule	Manchester	11-50	56	30
6	Optimiser	London	51-200	56	10
7	Sci-Net Business Solutions	Chipping Norton	11-50	54	46
8	Rocket Saas	London	51-200	38	25
9	EYONA	London	51-200	30	19
10	Gripped B2B Digital Marketing Agency For Saas & Tech	London	11-50	28	17
11	EO Group	Red Hill	51-200	27	1
12	Prospect CRM	Loughborough	51-200	23	12
13	Zumzum	Stockport	11-50	18	6
14	Moneypex	Birmingham	11-50	17	2
15	Avrion	Stevenage	11-50	16	13
16	Prospect Path	Newcastle Upon Tyne	11-50	15	11
17	Humony	Basingstoke	11-50	15	3
18	Robosme	London	11-50	14	7
19	Digital Litmus	London	11-50	13	5
20	Opencrm	Richmond	11-50	12	8
21	Inforgen	Peebles	11-50	11	10
22	Q CHI Limited	Swindon	11-50	11	5
23	Brightoffice	Preston	11-50	11	2
24	Broadcasting Platforms	London	51-200	10	2
25	Smarty Software	London	11-50	9	1

Showing 25 of 232 B2B SaaS companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 745 reachable decision-makers.

Free account · no credit card

See all 232 companies

B2B SaaS companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 100 HQs

189Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

140

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

B2B SaaS companies by metro

Metro	Companies
B2B SaaS companies in London	100
B2B SaaS companies in Manchester	11
B2B SaaS companies in Reading	5
B2B SaaS companies in Edinburgh	4
B2B SaaS companies in Birmingham	3
B2B SaaS companies in Milton Keynes	3
B2B SaaS companies in Cheltenham	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 “B2B SaaS 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; 3 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 B2B SaaS companies are there based in the United Kingdom?

There are 232 B2B SaaS companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Priority Software, headquartered in Oxford, tops this list with the largest team on record.

Which city has the most B2B SaaS companies?

London leads with 100 headquartered companies, followed by Manchester (11) and Reading (5).

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 745 verified decision-maker contacts tracked across these 232 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.

Ready to reach these companies? Verified emails and direct dials for all 232 B2B SaaS companies based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

B2B SaaS companies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All B2B SaaS companies lists · New lists

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.