Company lists · Data refreshed September 2026

Top 25 Building automation systems providers based in the United Kingdom

Name: Building automation systems providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 902 companies tracked

RevenueBase identified 902 building automation systems providers headquartered in the United Kingdom as of September 2026 and tracks 8,726 professional contacts across them, including 3,592 with verified work emails. London is the largest hub.

This list covers building automation systems providers 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 16, 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 16, 2026 86% judged on-target in blind review

902Companies

8,726Contacts tracked

3,592Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest building automation systems providers based in the United Kingdom

Ranked by team size

Top 25 of 902 building automation systems providers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building automation systems providers: 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	Colt International	Partial evidence	Petersfield, United KingdomHQ checked Sep 16, 2026	1,001-5,000	505 contacts →
	Partial evidence “Since 1931 we have been harnessing the natural elements to provide healthy, comfortable and safe working and living conditions in buildings.” Source: RevenueBase Database · checked Sep 16, 2026
2	BMSI	Strong evidence	Maidenhead, United KingdomHQ checked Sep 16, 2026	201-500	218 contacts →
	Strong evidence “BMSI is the UK’s largest & leading Independent systems integrator of Building Energy Management Systems (BEMS).” Source: RevenueBase Database · checked Sep 16, 2026
3	Scci Alphatrack	Strong evidence	Harlow, United KingdomHQ checked Sep 16, 2026	201-500	205 contacts →
	Strong evidence “Part of the SCCI Group, SCCI Alphatrack designs, installs, and maintains connected building systems across social housing, commercial property, new builds, and public sector…” Source: RevenueBase Database · checked Sep 16, 2026
4	Learnd	Partial evidence	Manchester, United KingdomHQ checked Sep 16, 2026	201-500	196 contacts →
	Partial evidence “learnd was founded in 2020 to disrupt the way buildings operate by providing energy and cost savings at scale - we call this the Power of Many.” Source: RevenueBase Database · checked Sep 16, 2026
5	Abec LTD	Strong evidence	Tewkesbury, United KingdomHQ checked Sep 16, 2026	51-200	175 contacts →
	Strong evidence “ABEC is one of the leading independent Building Management System (BMS) and Electrical Power Monitoring System (EPMS) specialists.” Source: RevenueBase Database · checked Sep 16, 2026
6	Swegon Uk&i	Partial evidence	Ashby-de-la-zouch, United KingdomHQ checked Sep 16, 2026	501-1,000	156 contacts →
	Partial evidence “Swegon is a market leading supplier of energy efficient indoor climate, cooling and life safety systems.” Source: RevenueBase Database · checked Sep 16, 2026
7	Kempston Controls	Partial evidence	Rushden, United KingdomHQ checked Sep 16, 2026	201-500	139 contacts →
	Partial evidence “Kempston Controls is a leader in distributing electrical and mechanical industrial control and automation components.” Source: RevenueBase Database · checked Sep 16, 2026
8	DPS Group	Indirect evidence	Glenrothes, United KingdomHQ checked Sep 16, 2026	51-200	139 contacts →
	Indirect evidence “Shaping the future, together.” Source: RevenueBase Database · checked Sep 16, 2026
9	Smith & Byford	Partial evidence	Cheam, United KingdomHQ checked Sep 16, 2026	201-500	132 contacts →
	Partial evidence “Smith & Byford is a family-owned and operated building services company.” Source: RevenueBase Database · checked Sep 16, 2026
10	Trend Control Systems	Strong evidence	Horsham, United KingdomHQ checked Sep 16, 2026	501-1,000	113 contacts →
	Strong evidence “Trend is one of the world's leading Building Energy Management Systems manufacturers, with a worldwide distribution and support network covering over 50 countries.” Source: RevenueBase Database · checked Sep 16, 2026
11	CP Electronics	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	111 contacts →
	Indirect evidence “With over 50 years experience in creating solutions for lighting, heating and ventilation, CP Electronics is a world leader in energy saving controls.” Source: RevenueBase Database · checked Sep 16, 2026
12	BPX Electro Mechanical Co. LTD	Partial evidence	Leicester, United KingdomHQ checked Sep 16, 2026	51-200	109 contacts →
	Partial evidence “We are BPX, 150+ dedicated, knowledgeable, and caring people, based in fifteen branches throughout the UK and Ireland, supplying customers worldwide with automation and control…” Source: RevenueBase Database · checked Sep 16, 2026
13	Adsyst Automation Limited	Strong evidence	Yateley, United KingdomHQ checked Sep 16, 2026	51-200	93 contacts →
	Strong 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 16, 2026
14	Resource Data Management	Partial evidence	Glasgow, United KingdomHQ checked Sep 16, 2026	51-200	88 contacts →
	Partial evidence “We help businesses optimise their HVACR and BMS control systems, reduce energy use, and ensure food safety compliance.” Source: RevenueBase Database · checked Sep 16, 2026
15	3mse LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	74 contacts →
	Strong evidence “3MSe Ltd are an experienced provider of turnkey Building Management Systems.” Source: RevenueBase Database · checked Sep 16, 2026
16	Powrmatic Limited	Partial evidence	Ilminster, United KingdomHQ checked Sep 16, 2026	51-200	73 contacts →
	Partial evidence “Powrmatic is a leading manufacturer and solution provider of advanced HVAC systems, including warm air heating, radiant heating, electric and water-based systems, as well as…” Source: RevenueBase Database · checked Sep 16, 2026
17	Infoteck Solutions	Partial evidence	Holborn, United KingdomHQ checked Sep 16, 2026	51-200	72 contacts →
	Partial evidence “Infoteck Solutions: Empowering Integration and Automation Welcome to Infoteck Solutions, your trusted partner in seamless integration and efficient automation.” Source: RevenueBase Database · checked Sep 16, 2026
18	Underwoods	Partial evidence	Enfield, United KingdomHQ checked Sep 16, 2026	51-200	71 contacts →
	Partial evidence “Underwoods is one of the UK and Ireland's TRUE technical automation distributors.” Source: RevenueBase Database · checked Sep 16, 2026
19	Came UK	Partial evidence	Castle Donington, United KingdomHQ checked Sep 16, 2026	51-200	71 contacts →
	Partial evidence “CAME is a leading multinational company, providing integrated technology solutions for automating residential, public and urban environments that creates smart spaces to improve…” Source: RevenueBase Database · checked Sep 16, 2026
20	Total Control	Indirect evidence	Tunbridge Wells, United KingdomHQ checked Sep 16, 2026	51-200	68 contacts →
	Indirect evidence “We deliver intelligent, integrated and innovative BMS solutions through our superior customer service, approach and expertise.” Source: RevenueBase Database · checked Sep 16, 2026
21	Applied Automation UK LTD	Strong evidence	Plymouth, United KingdomHQ checked Sep 16, 2026	51-200	67 contacts →
	Strong evidence “Applied Automation (UK) Ltd specialises in automation and control solutions, systems and products for manufacturing, the marine sector and smart homes.” Source: RevenueBase Database · checked Sep 16, 2026
22	Denca Controls LTD	Partial evidence	Widnes, United KingdomHQ checked Sep 16, 2026	51-200	66 contacts →
	Partial 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 16, 2026
23	Elmleigh	Strong evidence	Hinckley, United KingdomHQ checked Sep 16, 2026	51-200	63 contacts →
	Strong evidence “Elmleigh are specialists in the integration of electrical and mechanical automation systems offering a complete Project Management service from conception through design…” Source: RevenueBase Database · checked Sep 16, 2026
24	Qlite Global	Partial evidence	Monmouth Np25 3sr, United KingdomHQ checked Sep 16, 2026	501-1,000	63 contacts →
	Partial evidence “Qlite Limited UK is an established company with specialisation in low voltage control systems.” Source: RevenueBase Database · checked Sep 16, 2026
25	Fairfield Control Systems LTD	Partial evidence	Retford, United KingdomHQ checked Sep 16, 2026	51-200	61 contacts →
	Partial 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 16, 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: building automation systems providers. 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 building automation systems providers.
Partial evidence: Its own public description names part of building automation systems providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building automation systems providers. 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 902 building automation systems providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,592 reachable decision-makers.

Free signup · no credit card

View the full list →

Building automation systems providers based in the United Kingdom at a glance

As of Sep 16, 2026

41.2%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

12.9%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

532

11-50

279

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 902 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 building automation systems providers, 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 “building automation systems providers”. 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 building automation systems providers), 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 building automation systems providers, 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, 3,592 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 16, 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.

Building automation systems providers by metro

Building automation systems providers in London116

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 building automation systems providers, 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 building automation systems providers are there based in the United Kingdom?

RevenueBase identified 902 building automation systems providers 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?

Colt International, headquartered in Petersfield, tops this list with the largest team on record.

Which city has the most building automation systems providers?

London leads with 116 headquartered companies, followed by Birmingham (15) and Leeds (15).

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 3,592 verified decision-maker contacts tracked across these 902 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 902 building automation systems providers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Building automation systems providers by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Building automation systems providers lists · New lists

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.