Company lists · Data refreshed September 2026

Top 25 Industrial control system integrators based in the United Kingdom

Name: Industrial control system integrators based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 803 companies tracked

RevenueBase identified 803 company matches for industrial control system integrators associated with the United Kingdom as of September 2026 and tracks 11,155 professional contacts across them, including 4,703 with verified work emails. London is the largest hub.

This list covers company matches for industrial control system integrators 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 17, 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 17, 2026 How this list was built

803Companies

11,155Contacts tracked

4,703Verified emails

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The 25 largest industrial control system integrators based in the United Kingdom

Ranked by team size

Top 25 of 803 company matches for industrial control system integrators based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Protec Fire And Security Group	Exact match	Nelson, United KingdomHQ recorded Sep 17, 2026	501-1,000	493 contacts →
	Exact match “Through our team of over 900 creative individuals, we've positioned ourselves as a respected force as a life safety systems integrator.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Trinity Fire & Security Systems	Exact match	Exeter, United KingdomHQ recorded Sep 17, 2026	501-1,000	386 contacts →
	Exact match “Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Capula	Exact match	Stone, United KingdomHQ recorded Sep 17, 2026	201-500	351 contacts →
	Exact match “What we do \| With a focus on operational technology and digital transformation, Capula has been a leader in advanced system integration for decades; optimising efficiency &…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	MARCH	Exact match	Multiple Locations Uk-wide, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	273 contacts →
	Exact match “We are March.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	ITI Group	Exact match	Sheffield, United KingdomHQ recorded Sep 17, 2026	201-500	234 contacts →
	Exact match “For organisations facing the compounding threats of ageing assets, a retiring workforce, and evolving cyber attacks, the status quo is no longer an option.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Booth Welsh	Exact match	Irvine, United KingdomHQ recorded Sep 17, 2026	201-500	192 contacts →
	Exact match “Booth Welsh is a global engineering technology company with over 30 years of experience in electrical, control systems, and instrumentation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Actemium UK	Exact match	Birmingham, United KingdomHQ recorded Sep 17, 2026	501-1,000	190 contacts →
	Exact match “At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Frontline Security Solutions	Exact match	Chalfont St Peter, United KingdomHQ recorded Sep 17, 2026	51-200	145 contacts →
	Exact match “Frontline Security Solutions is a global electronic security integrator specialising in Access Control, CCTV, Intruder and Intercom systems that protect people, property and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Kempston Controls	Exact match	Rushden, United KingdomHQ recorded Sep 17, 2026	201-500	139 contacts →
	Exact match “Kempston Controls is a leader in distributing electrical and mechanical industrial control and automation components.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	DPS Group	Exact match	Glenrothes, United KingdomHQ recorded Sep 17, 2026	51-200	139 contacts →
	Exact match “Shaping the future, together.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Cema LTD	Exact match	Nottingham, United KingdomHQ recorded Sep 17, 2026	201-500	131 contacts →
	Exact match “CEMA was founded in 1987 in Nottingham, and has quickly grown to become one of the leading electrical engineering companies in the United Kingdom, specialising in understanding…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Sella Controls A Hima Company	Exact match	Cheshire, United KingdomHQ recorded Sep 17, 2026	51-200	120 contacts →
	Exact match “SELLA CONTROLS - A HIMA Company, is a designer and supplier of integrated safety, control and automation systems and specialises in delivering the following: Process Control and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Orbital GAS Systems Bilfinger Nzero	Exact match	Stone, United KingdomHQ recorded Sep 17, 2026	51-200	109 contacts →
	Exact match “Over the past 30 years, Orbital has grown to become one of the UK's largest independent system integration organisations handling various contracts ranging in value.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	PCE Automation	Exact match	Beccles, United KingdomHQ recorded Sep 17, 2026	201-500	105 contacts →
	Exact match “Formed in 1961, PCE Automation Ltd has established itself as an automation solutions provider for a wide range of product handling, assembling and testing systems with a worldwide…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Parmley Graham LTD	Exact match	Gateshead, United KingdomHQ recorded Sep 17, 2026	51-200	100 contacts →
	Exact match “Empowering Industry with Innovation, Expertise, and Trusted Supply.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Optilan	Exact match	Royal Leamington Spa, United KingdomHQ recorded Sep 17, 2026	201-500	95 contacts →
	Exact match “Optilan is a leading independent security and communications systems integrator worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Total Integrated Solutions TIS LTD	Exact match	Mansfield, United KingdomHQ recorded Sep 17, 2026	51-200	94 contacts →
	Exact match “Better protect your people, places and spaces.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Adsyst Automation Limited	Exact match	Yateley, United KingdomHQ recorded Sep 17, 2026	51-200	93 contacts →
	Exact match “As a System Integrator for over 35 years, Adsyst (Automation) Ltd has been providing complex Control Systems for Process Control, Automation and Telemetry to customers worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Iconsys	Exact match	Telford, United KingdomHQ recorded Sep 17, 2026	51-200	75 contacts →
	Exact match “Established in 1987, iconsys is a leading UK power & automation solutions provider and systems integrator.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Infoteck Solutions	Exact match	Holborn, United KingdomHQ recorded Sep 17, 2026	51-200	72 contacts →
	Exact match “Infoteck Solutions: Empowering Integration and Automation Welcome to Infoteck Solutions, your trusted partner in seamless integration and efficient automation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Underwoods	Exact match	Enfield, United KingdomHQ recorded Sep 17, 2026	51-200	71 contacts →
	Exact match “Underwoods is one of the UK and Ireland's TRUE technical automation distributors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	RSE Control Systems Saftronics	Exact match	Leeds, United KingdomHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match “Established in 1979 and located in Leeds in a purpose built 2,400m² design, manufacturing and testing facility, Saftronics specialise in process control systems and LV…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Denca Controls LTD	Exact match	Widnes, United KingdomHQ recorded Sep 17, 2026	51-200	66 contacts →
	Exact match “Renowned across numerous sectors as 'the systems integrator of choice', we have built a reputation on delivering high quality, value-for-money solutions that enhance production…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	AIR Wakefield	Exact match	Wakefield, United KingdomHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “Note: Sewtec Automation is now proudly part of Automated Industrial Robotics - AIR, a new company consisting of like minded, global automation companies, with a proven track…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Elmleigh	Exact match	Hinckley, United KingdomHQ recorded Sep 17, 2026	51-200	63 contacts →
	Exact match “Elmleigh are specialists in the integration of electrical and mechanical automation systems offering a complete Project Management service from conception through design…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial control system integrators”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 803 industrial control system integrators based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,703 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial control system integrators based in the United Kingdom at a glance

As of Sep 17, 2026

42.2%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

6.4%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

457

11-50

245

51-200

201-500

501-1,000

1,001-5,000

10001+

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 803 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 “industrial control system integrators” 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 4,703 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 17, 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 “industrial control system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial control system integrators are there based in the United Kingdom?

RevenueBase identified 803 company matches for industrial control system integrators 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?

Protec Fire And Security Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial control system integrators?

London leads with 51 company records, followed by Sheffield (14) and Leeds (12).

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 4,703 professional contacts with verified work emails tracked across these 803 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 17, 2026.

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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.