Company lists · Data refreshed November 2026

Top 25 Turnkey building & installation services based in the United Kingdom

RevenueBase identified 1,978 company matches for turnkey building & installation services associated with the United Kingdom as of November 2026 and tracks 30,182 professional contacts across them, including 9,667 with verified work emails. London is the largest hub.

This list covers company matches for turnkey building & installation services 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 November 3, 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 Nov 3, 2026 How this list was built
1,978Companies
30,182Contacts tracked
9,667Verified emails
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The 25 largest turnkey building & installation services based in the United Kingdom

Ranked by team size
Top 25 of 1,978 company matches for turnkey building & installation services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 3, 20261,001-5,0001,637 contacts →

Exact match

“Who we are: At ISG, our vision is to be the world’s most dynamic construction services company, delivering places that help people and businesses thrive.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2Exact matchWembley, United KingdomHQ recorded Nov 3, 20261,001-5,0001,204 contacts →

Exact match

“Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3Exact matchNorthampton, United KingdomHQ recorded Nov 3, 2026201-500705 contacts →

Exact match

“Formed in 2001, Winvic Construction Ltd is a leading main contractor that specialises in the design, build and fit-out of industrial, multi-room and commercial projects, and the…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4Exact matchDartford, United KingdomHQ recorded Nov 3, 20261,001-5,000650 contacts →

Exact match

“Part of the Laing O’Rourke Group, and founded on more than 200 years of experience, we are a leading construction and infrastructure technology services provider, supplying a…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5Exact matchStirling, United KingdomHQ recorded Nov 3, 2026501-1,000629 contacts →

Exact match

“The FES Group is one of the largest independent technical services companies in the UK over 60 years of experience providing building services solutions to a wide range of…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6Exact matchGlasgow, United KingdomHQ recorded Nov 3, 2026501-1,000380 contacts →

Exact match

“City Building Engineering Services is a construction and engineering company providing constructive solutions within a variety of sectors.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7Exact matchNorthampton, United KingdomHQ recorded Nov 3, 2026501-1,000352 contacts →

Exact match

“The Briggs & Forrester Group is an award winning building services specialist and is one of the industry’s largest independent contractors with an annual turnover in excess of…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 3, 2026501-1,000268 contacts →

Exact match

“Gratte Brothers Group is a leading independent provider of comprehensive building services, renowned for exceptional quality.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9Exact matchHove, United KingdomHQ recorded Nov 3, 2026201-500267 contacts →

Exact match

“The Shore Group build, maintain and resource exceptional projects and services for our clients every day.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10Exact matchStevenage, United KingdomHQ recorded Nov 3, 2026201-500241 contacts →

Exact match

“JCA is a multi-faceted engineering services and construction business.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11Exact matchBristol, United KingdomHQ recorded Nov 3, 202651-200224 contacts →

Exact match

“THE CONSTRUCTION PEOPLE - At Lancer Scott we care about what we do and the people we work with.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12Exact matchHarlow, United KingdomHQ recorded Nov 3, 2026201-500223 contacts →

Exact match

“Part of the SCCI Group, SCCI Alphatrack designs, installs, and maintains connected building systems across social housing, commercial property, new builds, and public sector…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13Exact matchMalpas, United KingdomHQ recorded Nov 3, 2026501-1,000220 contacts →

Exact match

“Welcome to Barlows (UK) Ltd.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14Exact matchSandling, United KingdomHQ recorded Nov 3, 2026201-500194 contacts →

Exact match

“BJF Group is a diverse building solutions company comprised of six complementary divisions; Facilities Management, Construction, Mechanical & Electrical, Project Services, MEP…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15Exact matchBirmingham, United KingdomHQ recorded Nov 3, 2026201-500191 contacts →

Exact match

“Carter Synergy is a nation-wide provider of refrigeration, mechanical, electrical and other core building services.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16Exact matchSt. Albans, United KingdomHQ recorded Nov 3, 202651-200188 contacts →

Exact match

“Established in 1997, RCL has grown to become a specialist in engineering solutions and facilities management for prestigious commercial buildings, providing planned maintenance…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 3, 202651-200162 contacts →

Exact match

“Established in 1985, Group Metropolitan has grown to become a respected turnkey services contractor covering most aspects of the construction industry, from M&E to fit out…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18Exact matchBristol, United KingdomHQ recorded Nov 3, 202651-200152 contacts →

Exact match

“MCS Ltd are specialist building services engineers covering all aspects of commercial and industrial building services and infrastructure engineering across varying market sectors.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19Exact matchBillingham, United KingdomHQ recorded Nov 3, 2026201-500148 contacts →

Exact match

“Geoffrey Robinson are an award-winning mechanical, electrical and construction contractor, one of the largest in the North East.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20Exact matchCheam, United KingdomHQ recorded Nov 3, 2026201-500144 contacts →

Exact match

“Smith & Byford is a family-owned and operated building services company.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21Exact matchNottingham, United KingdomHQ recorded Nov 3, 2026201-500139 contacts →

Exact match

“J Tomlinson is a company built on strong foundations, with a substantial heritage and a wealth of experience in delivering integrated building solutions, from design and build…”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22Exact matchPortsmouth, United KingdomHQ recorded Nov 3, 2026201-500136 contacts →

Exact match

“Mountjoy provides professional and high quality construction, refurbishment, building maintenance and facilities management services.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 3, 202651-200135 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 3, 2026201-500126 contacts →

Exact match

“Cilantro Engineering is a multi-discipline Building Services Contractor offering a vast range of Mechanical and Electrical Design & Installation services.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25Exact matchCookstown, United KingdomHQ recorded Nov 3, 202651-200123 contacts →

Exact match

“TES are Mechanical & Electrical Specialists, working to the highest standard of engineering excellence.”

Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

Showing 25 of 1,978 turnkey building & installation services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,667 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Turnkey building & installation services based in the United Kingdom at a glance

As of Nov 3, 2026
32.0%Verified-email coverage
15.3Average contacts per company
11-50Median size (employees)
12.0%Largest-city concentration · London
Nov 3, 2026Page data refreshed

Companies by employee count

1-10
768
11-50
790
51-200
266
201-500
48
501-1,000
11
1,001-5,000
9

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 1,978 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 “turnkey building & installation services” 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 9,667 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 November 3, 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 “turnkey building & installation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many turnkey building & installation services are there based in the United Kingdom?

RevenueBase identified 1,978 company matches for turnkey building & installation services associated with the United Kingdom as of November 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?

ISG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most turnkey building & installation services?

London leads with 237 company records, followed by Manchester (37) and Glasgow (29).

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 9,667 professional contacts with verified work emails tracked across these 1,978 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 November 3, 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.