Company lists · Data verified August 2026

Top 25 Cloud-based monitoring platform companies based in the United Kingdom

Name: Cloud-based monitoring platform 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 159 companies tracked

There are 159 cloud-based monitoring platform companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 1,577 professional contacts across them, including 762 with verified work emails and 141 with mobile numbers. London is the largest hub.

This list covers cloud-based monitoring platform 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.

159Companies

1,577Contacts tracked

762Verified emails

141Mobile numbers

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The 25 largest cloud-based monitoring platform companies based in the United Kingdom

Ranked by team size

Top 25 of 159 cloud-based monitoring platform 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	ITRS	London	201-500	335	236
2	Worldsensing	London	51-200	126	52
3	Vianet Group PLC	Stockton-On-Tees	51-200	118	50
4	Machinemax	London	51-200	87	33
5	ABLY	London	51-200	82	43
6	Evocon	London	11-50	50	35
7	Invisible Systems	Milnthorpe	11-50	48	30
8	Extravis	Horsham	11-50	47	8
9	Rockley Photonics	Oxford	51-200	42	8
10	Salunda	Bicester	51-200	40	26
11	HARK	Leeds	11-50	34	28
12	Nortech Management LTD	Evesham	11-50	24	14
13	Highlight Service Observability Platform	Elstead	11-50	21	11
14	Fenix Monitoring	Oxford	11-50	19	11
15	HUMIO	London	51-200	18	11
16	B2m Solutions	Reading	11-50	16	10
17	Conxtd	Oxford House	11-50	15	5
18	Numen AI	London	11-50	14	9
19	T-Scan LTD	London	11-50	12	6
20	Izon Live	Belfast	11-50	12	3
21	Inclusive Energy	London	11-50	10	6
22	Rapidspike	Leeds	11-50	10	5
23	Tekwurx	Aylesbury Bucks	11-50	9	7
24	Axonops	London	11-50	8	6
25	Koolzone LTD	Henley-On-Thames	11-50	8	4

Showing 25 of 159 cloud-based monitoring platform companies based in the United Kingdom

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Cloud-based monitoring platform companies based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 51 HQs

141Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

Cloud-based monitoring platform companies by metro

Metro	Companies
Cloud-based monitoring platform companies in London	51
Cloud-based monitoring platform companies in Leeds	6
Cloud-based monitoring platform companies in Manchester	3
Cloud-based monitoring platform companies in Cambridge	3
Cloud-based monitoring platform companies in Henley-On-Thames	3
Cloud-based monitoring platform companies in Bristol	3
Cloud-based monitoring platform companies in Belfast	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 “cloud-based monitoring platform 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; 4 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 cloud-based monitoring platform companies are there based in the United Kingdom?

There are 159 cloud-based monitoring platform companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most cloud-based monitoring platform companies?

London leads with 51 headquartered companies, followed by Leeds (6) and Manchester (3).

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 762 verified decision-maker contacts tracked across these 159 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.