Company lists · Data refreshed September 2026

Top 25 Plc programming companies based in the United Kingdom

Name: Plc programming companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 357 companies tracked

RevenueBase identified 357 plc programming companies headquartered in the United Kingdom as of September 2026 and tracks 2,568 professional contacts across them, including 972 with verified work emails. London is the largest hub.

This list covers plc programming 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

357Companies

2,568Contacts tracked

972Verified emails

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The 25 largest plc programming companies based in the United Kingdom

Ranked by team size

Top 25 of 357 plc programming companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to plc programming companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DPS Group	Indirect evidence	Glenrothes, United KingdomHQ checked Sep 20, 2026	51-200	139 contacts →
	Indirect evidence “Shaping the future, together.” Source: RevenueBase Database · checked Sep 20, 2026
2	PCE Automation	Indirect evidence	Beccles, United KingdomHQ checked Sep 20, 2026	201-500	105 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
3	Adsyst Automation Limited	Indirect evidence	Yateley, United KingdomHQ checked Sep 20, 2026	51-200	93 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
4	Denca Controls LTD	Indirect evidence	Widnes, United KingdomHQ checked Sep 20, 2026	51-200	66 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
5	Fairfield Control Systems LTD	Indirect evidence	Retford, United KingdomHQ checked Sep 20, 2026	51-200	61 contacts →
	Indirect evidence “Fairfield Control Systems Ltd specialise in the design, manufacture, installation, commissioning and service support of industrial control solutions across a wide range of markets.” Source: RevenueBase Database · checked Sep 20, 2026
6	AJS Control & Automation	Indirect evidence	Holbeach, United KingdomHQ checked Sep 20, 2026	51-200	53 contacts →
	Indirect evidence “Since 2008 AJS has been providing electrical engineering solutions to the food, beverage and agrotechnology sectors.” Source: RevenueBase Database · checked Sep 20, 2026
7	The Automated Technology Group	Indirect evidence	Silsoe, United KingdomHQ checked Sep 20, 2026	201-500	52 contacts →
	Indirect evidence “We are a leading global supplier of control and power solutions for industrial automation.” Source: RevenueBase Database · checked Sep 20, 2026
8	ICSS	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	11-50	51 contacts →
	Indirect evidence “Experts in Industrial Automation.” Source: RevenueBase Database · checked Sep 20, 2026
9	Simkiss Control Systems LTD	Indirect evidence	Middleton, United KingdomHQ checked Sep 20, 2026	51-200	47 contacts →
	Indirect evidence “Simkiss Control Systems, part of United Infrastructure Group, is a trusted name in the field of industrial automation and control systems.” Source: RevenueBase Database · checked Sep 20, 2026
10	MCS Control Systems LTD	Indirect evidence	Coventry, United KingdomHQ checked Sep 20, 2026	51-200	46 contacts →
	Indirect evidence “MCS has continually invested in technology and people to ensure that we provide cost-effective solutions for control applications.” Source: RevenueBase Database · checked Sep 20, 2026
11	Motiontech Software & Controls	Indirect evidence	Telford, United KingdomHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence “MotionTech Software and Controls is a leading Industrial Automations specialist based in Telford, England.” Source: RevenueBase Database · checked Sep 20, 2026
12	Axon Power & Control Limited	Indirect evidence	Dungannon, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “Since 1984 Axon Power & Control have been providing electrical engineering and control systems solutions to industrial and commercial clients throughout the UK and Ireland and are…” Source: RevenueBase Database · checked Sep 20, 2026
13	Cougar Automation Limited	Partial evidence	Waterlooville, United KingdomHQ checked Sep 20, 2026	501-1,000	28 contacts →
	Partial evidence “Cougar Automation is a leading System Integrator providing automation and control systems to industry, manufacturing and process plants (PLC, SCADA & MES).” Source: RevenueBase Database · checked Sep 20, 2026
14	Opensoft Systems LTD	Indirect evidence	Knaresborough, United KingdomHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Opensoft Systems specialises in providing tailored automation systems to industrial market sectors across the globe.” Source: RevenueBase Database · checked Sep 20, 2026
15	ADI Automation	Partial evidence	Kings Norton, United KingdomHQ checked Sep 20, 2026	51-200	24 contacts →
	Partial evidence “adi Automation provide fully integrated industrial automation and control solutions, employing an extensive range of PLC, HMI and SCADA technologies, delivering major turn-key…” Source: RevenueBase Database · checked Sep 20, 2026
16	Ashdale	Indirect evidence	Newtownabbey, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “We are product and solution specialists and have extensive application knowledge of our product portfolio.” Source: RevenueBase Database · checked Sep 20, 2026
17	KRA Brown Electrical Services	Indirect evidence	Wrotham, United KingdomHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “KRA Brown Group specialises in providing a comprehensive range of industrial electrical services tailored to meet the diverse needs of our clients.” Source: RevenueBase Database · checked Sep 20, 2026
18	Transicon Limited	Indirect evidence	Telford, United KingdomHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Design.” Source: RevenueBase Database · checked Sep 20, 2026
19	ALS Mechatronic	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “ALS Mechatronic is trusted globally by start-ups through to multinational powerhouses - ranging from dairies to pharmaceutical companies to help improve their efficiency and…” Source: RevenueBase Database · checked Sep 20, 2026
20	Calverley Control Installations LTD	Indirect evidence	Leeds, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “With over 25 years experience in control solutions design, engineering, manufacture and installation, CCI are ideally placed to meet the requirements of even the most demanding…” Source: RevenueBase Database · checked Sep 20, 2026
21	CCS Technology LTD	Indirect evidence	Coventry, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “CCS Technology was established in 1988 to provide specialist control system design, software and manufacture for industrial machinery.” Source: RevenueBase Database · checked Sep 20, 2026
22	Incontrol Systems Limited	Indirect evidence	Barlborough, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “InControl Systems have been providing solutions for process control, automation and information systems since From consultation and conception through to design, implementation…” Source: RevenueBase Database · checked Sep 20, 2026
23	Ceon Machinery Control LTD	Indirect evidence	Cookstown, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “CEON engineers, designs and manufactures electrical control systems, control panels and low voltage switchgear for OEM machine builders and industrial equipment manufacturers…” Source: RevenueBase Database · checked Sep 20, 2026
24	Finesse Control Systems Limited	Indirect evidence	Arbroath, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Finesse Control Systems Ltd is an electrical engineering company based in Arbroath, Angus, on the east coast of Scotland.” Source: RevenueBase Database · checked Sep 20, 2026
25	IES Works LTD	Indirect evidence	Colchester, United KingdomHQ checked Sep 20, 2026	1-10	20 contacts →
	Indirect evidence “Our in-house expertise provides Integrated Control Systems including Design, HV/LV Installations, Switchgear / Motor Control Centre manufacture, maintenance and refurbishment…” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: plc programming companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names plc programming companies.
Partial evidence: Its own public description names part of plc programming companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plc programming companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 357 plc programming companies based in the United Kingdom

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Plc programming companies based in the United Kingdom at a glance

As of Sep 20, 2026

37.9%Verified-email coverage

7.2Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

243

11-50

51-200

201-500

501-1,000

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 357 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among plc programming companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “plc programming companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names plc programming companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among plc programming companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 972 across the full list. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names plc programming companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many plc programming companies are there based in the United Kingdom?

RevenueBase identified 357 plc programming companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

DPS Group, headquartered in Glenrothes, tops this list with the largest team on record.

Which city has the most plc programming companies?

London leads with 10 headquartered companies, followed by Birmingham (5) and Coventry (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 972 verified decision-maker contacts tracked across these 357 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 Smart Search, 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.