Company lists · Data refreshed September 2026

Top 25 Building automation contractors based in the United Kingdom

Name: Building automation contractors 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 509 companies tracked

RevenueBase identified 509 building automation contractors headquartered in the United Kingdom as of September 2026 and tracks 3,821 professional contacts across them, including 1,564 with verified work emails. London is the largest hub.

This list covers building automation contractors 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

509Companies

3,821Contacts tracked

1,564Verified emails

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The 25 largest building automation contractors based in the United Kingdom

Ranked by team size

Top 25 of 509 building automation contractors 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 contractors: 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	Abec LTD	Partial evidence	Tewkesbury, United KingdomHQ checked Sep 16, 2026	51-200	175 contacts →
	Partial 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
2	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
3	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
4	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
5	Trend Control Systems	Partial evidence	Horsham, United KingdomHQ checked Sep 16, 2026	501-1,000	113 contacts →
	Partial 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
6	3mse LTD	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	74 contacts →
	Partial evidence “3MSe Ltd are an experienced provider of turnkey Building Management Systems.” Source: RevenueBase Database · checked Sep 16, 2026
7	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
8	Elmleigh	Partial evidence	Hinckley, United KingdomHQ checked Sep 16, 2026	51-200	63 contacts →
	Partial 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
9	AES Control Systems	Partial evidence	Northampton, United KingdomHQ checked Sep 16, 2026	51-200	45 contacts →
	Partial evidence “AES is a leading provider of intelligent building control system solutions.” Source: RevenueBase Database · checked Sep 16, 2026
10	TLA Distribution LTD	Indirect evidence	Bingham, United KingdomHQ checked Sep 16, 2026	51-200	43 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
11	AET Flexible Space	Partial evidence	East Grinstead, United KingdomHQ checked Sep 16, 2026	11-50	43 contacts →
	Partial evidence “AET Flexible Space has been redefining how buildings breathe since 1993.” Source: RevenueBase Database · checked Sep 16, 2026
12	Tftull Limited	Partial evidence	Watford, United KingdomHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “Since 1967 tftull has been specialising in the design, engineering, manufacture, installation, commissioning & maintenance of building management control systems and panels.” Source: RevenueBase Database · checked Sep 16, 2026
13	Motiontech Software & Controls	Partial evidence	Telford, United KingdomHQ checked Sep 16, 2026	11-50	34 contacts →
	Partial evidence “MotionTech Software and Controls is a leading Industrial Automations specialist based in Telford, England.” Source: RevenueBase Database · checked Sep 16, 2026
14	Principal Hvac	Indirect evidence	Belfast, United KingdomHQ checked Sep 16, 2026	51-200	34 contacts →
	Indirect evidence “Principal HVAC are at the leading edge of Heating, Ventilation & Air conditioning systems for commercial and residential property.” Source: RevenueBase Database · checked Sep 16, 2026
15	ONE Sightsolutions LTD	Strong evidence	Hartley Wintney, United KingdomHQ checked Sep 16, 2026	11-50	33 contacts →
	Strong evidence “https://onesight.solutions/ Here at One Sightsolutions we are the leading UK supplier of reputable building automation and energy management products & services.” Source: RevenueBase Database · checked Sep 16, 2026
16	361 Degrees LTD AIR Conditioning, Heating & Ventilation Solutions	Indirect evidence	Leighton Buzzard, United KingdomHQ checked Sep 16, 2026	11-50	30 contacts →
	Indirect evidence “A good environment can improve morale, productivity and employee retention.” Source: RevenueBase Database · checked Sep 16, 2026
17	Oakland AIR Control	Indirect evidence	Worcester, United KingdomHQ checked Sep 16, 2026	11-50	30 contacts →
	Indirect evidence “We are a specialist heating, ventilation, air conditioning (HVAC), heat pump, electrical and BEMS controls engineering solutions business and post ESOS service provider.” Source: RevenueBase Database · checked Sep 16, 2026
18	Parr Group	Indirect evidence	Belfast, United KingdomHQ checked Sep 16, 2026	51-200	30 contacts →
	Indirect evidence “Our work makes things possible.” Source: RevenueBase Database · checked Sep 16, 2026
19	Building Technology Systems LTD	Partial evidence	Warrington, United KingdomHQ checked Sep 16, 2026	11-50	29 contacts →
	Partial evidence “Building Technology Systems design and install integrated building control systems for controlling HVAC systems, lighting, door access and CCTV.” Source: RevenueBase Database · checked Sep 16, 2026
20	Syscom BMS	Partial evidence	Egham, United KingdomHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “An independent control systems house specialising in Building Energy Management Systems (BMS, BEMS) for the building services industry and was formed in the autumn of 1998.” Source: RevenueBase Database · checked Sep 16, 2026
21	Tyrrell Building Technologies Group	Strong evidence	Leigh, United KingdomHQ checked Sep 16, 2026	51-200	28 contacts →
	Strong evidence “TBT Group is a leading Smart Buildings and IoT Master Systems Integrator (MSI) in the UK, specialising in real-time environmental monitoring, process automation, and energy…” Source: RevenueBase Database · checked Sep 16, 2026
22	Robell Control Systems Limited	Indirect evidence	Birmingham, United KingdomHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect evidence “Robell Control Systems Limited established in 1989, we are privately owned independent company and are leading independent specialists for design, installation, commissioning and…” Source: RevenueBase Database · checked Sep 16, 2026
23	ALL BMS Systems LTD	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	27 contacts →
	Indirect evidence “All BMS Systems offer a comprehensive service covering consultancy, design, project management, engineering, installation and all essential support services.” Source: RevenueBase Database · checked Sep 16, 2026
24	Laplace Solutions LTD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 16, 2026	51-200	26 contacts →
	Indirect evidence “About Us Laplace Solutions has a history stretching back to 1976, when we sold instrumentation products to a variety of industries.” Source: RevenueBase Database · checked Sep 16, 2026
25	Campbell West	Partial evidence	Bracknell, United KingdomHQ checked Sep 16, 2026	51-200	26 contacts →
	Partial evidence “The Mechanical & Electrical Building Services Team is here to keep your building running smoothly!” 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of building automation contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building automation contractors. 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 509 building automation contractors based in the United Kingdom

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Building automation contractors based in the United Kingdom at a glance

As of Sep 16, 2026

40.9%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

11.0%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

288

11-50

172

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 509 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 contractors, 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 contractors”. 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 contractors), 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 contractors, 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, 1,564 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 contractors by metro

Building automation contractors in London56

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 contractors, 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 contractors are there based in the United Kingdom?

RevenueBase identified 509 building automation contractors 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?

Abec LTD, headquartered in Tewkesbury, tops this list with the largest team on record.

Which city has the most building automation contractors?

London leads with 56 headquartered companies, followed by Leeds (11) and Sheffield (8).

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 1,564 verified decision-maker contacts tracked across these 509 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.

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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.