Company lists · Data refreshed September 2026

Top 25 Prefabricated building companies based in the United Kingdom

Name: Prefabricated building 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 17, 2026 243 companies tracked

RevenueBase identified 243 prefabricated building companies headquartered in the United Kingdom as of September 2026 and tracks 4,851 professional contacts across them, including 2,136 with verified work emails. London is the largest hub.

This list covers prefabricated building 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 17, 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 17, 2026 86% judged on-target in blind review

243Companies

4,851Contacts tracked

2,136Verified emails

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The 25 largest prefabricated building companies based in the United Kingdom

Ranked by team size

Top 25 of 243 prefabricated building companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to prefabricated building 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	Portakabin	Indirect evidence	York, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,206 contacts →
	Indirect evidence “An industry leading modular and offsite construction specialist operating across ten European countries; England, Wales, Scotland, Northern Ireland, Republic of Ireland, France…” Source: RevenueBase Database · checked Sep 17, 2026
2	Alternative Heat LTD	Indirect evidence	Banbridge, United KingdomHQ checked Sep 17, 2026	501-1,000	268 contacts →
	Indirect evidence “With over 20 years of experience within the Commercial Offsite Fabrication industry, Alternative Heat have established themselves as a market leader in this sector.” Source: RevenueBase Database · checked Sep 17, 2026
3	Reds10	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	256 contacts →
	Indirect evidence “At Reds10, we are redefining construction for the modern world.” Source: RevenueBase Database · checked Sep 17, 2026
4	Hadley Group	Partial evidence	Smethwick, United KingdomHQ checked Sep 17, 2026	501-1,000	227 contacts →
	Partial evidence “We are a market-leading, globally active business built on engineering excellence, innovation in structural building performance and cold roll forming technology, with a…” Source: RevenueBase Database · checked Sep 17, 2026
5	Mcavoy	Partial evidence	Knockmore Hill, United KingdomHQ checked Sep 17, 2026	51-200	153 contacts →
	Partial evidence “McAvoy is one of the UK and Ireland’s market leaders in the precision manufacture and delivery of temporary and permanent modular buildings.” Source: RevenueBase Database · checked Sep 17, 2026
6	Euroclad Group LTD	Partial evidence	Cardiff, United KingdomHQ checked Sep 17, 2026	201-500	116 contacts →
	Partial evidence “We are an international supplier of architectural metal building solutions to the construction industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	PCE Limited	Indirect evidence	Tamworth, United KingdomHQ checked Sep 17, 2026	51-200	112 contacts →
	Indirect evidence “PCE are pioneers in offsite system build solutions, with expertise across design, manufacture, and construction.” Source: RevenueBase Database · checked Sep 17, 2026
8	Lakesmere Group	Indirect evidence	Winnall, United KingdomHQ checked Sep 17, 2026	501-1,000	97 contacts →
	Indirect evidence “The Lakesmere Group comprises Lakesmere Limited (UK), McMullen Facades Ltd, Lakesmere Arabia LLC, Lakesmere Oman LLC, Lakesmere Middle East LLC (Dubai and Abu Dhabi) and Lakesmere…” Source: RevenueBase Database · checked Sep 17, 2026
9	Thurston Group Limited	Strong evidence	Wakefield, United KingdomHQ checked Sep 17, 2026	201-500	78 contacts →
	Strong evidence “Thurston Group Limited stands at the forefront of all prefabricated building manufacturing technology.” Source: RevenueBase Database · checked Sep 17, 2026
10	Innovaré Offsite Limited	Indirect evidence	Coventry, United KingdomHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “Innovaré Offsite is an Offsite specialist delivering #LowcarbonFireSafe structural solutions.” Source: RevenueBase Database · checked Sep 17, 2026
11	Tophat	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	75 contacts →
	Indirect evidence “The UK’s leader in technology-driven modular housing manufacturing Can you achieve your career goals with TopHat?” Source: RevenueBase Database · checked Sep 17, 2026
12	Brymec	Partial evidence	Coulsdon, United KingdomHQ checked Sep 17, 2026	51-200	68 contacts →
	Partial evidence “From our founders’ shed to a brand proven on thousands of construction projects, Brymec was built by people who refused to accept the gaps in building services as “just the way it…” Source: RevenueBase Database · checked Sep 17, 2026
13	ESS Modular	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	64 contacts →
	Indirect evidence “With over 25 years in the industry, ESS is a leading provider of modular products, focusing on off-site solutions for clients in the public and private sectors.” Source: RevenueBase Database · checked Sep 17, 2026
14	JRL Modular	Indirect evidence	Newark, United KingdomHQ checked Sep 17, 2026	201-500	64 contacts →
	Indirect evidence “JRL Modular is part of the JRL Group.” Source: RevenueBase Database · checked Sep 17, 2026
15	Rollalong LTD	Indirect evidence	Wimborne, United KingdomHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “Rollalong Ltd is a leading modular and offsite construction manufacturing company based in Dorset.” Source: RevenueBase Database · checked Sep 17, 2026
16	Novum Structures Europe	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	52 contacts →
	Indirect evidence “Novum Structures specialises in the design, engineering, fabrication, supply, and installation of membrane systems (ETFE, PTFE, PVC), structural glazing, supporting structures…” Source: RevenueBase Database · checked Sep 17, 2026
17	British Offsite Limited	Indirect evidence	Braintree, United KingdomHQ checked Sep 17, 2026	51-200	48 contacts →
	Indirect evidence “British Offsite is a highly advanced manufacturing and construction company specialising in the design and production of superstructure and interior fit modular construction…” Source: RevenueBase Database · checked Sep 17, 2026
18	Fasthouse	Strong evidence	Co Derry, United KingdomHQ checked Sep 17, 2026	51-200	46 contacts →
	Strong evidence “Established in 2015, FastHouse designs, manufactures and installs high-performance housing and prefabricated timber frame panelised building systems.” Source: RevenueBase Database · checked Sep 17, 2026
19	Space4	Indirect evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Indirect evidence “Space4 is the offsite manufacturing arm of Persimmon Homes, delivering advanced timber frame solutions that drive efficiency, quality and sustainability across our developments.” Source: RevenueBase Database · checked Sep 17, 2026
20	Spaciotempo UK & Ireland	Partial evidence	Uttoxeter, United KingdomHQ checked Sep 17, 2026	11-50	34 contacts →
	Partial evidence “Spaciotempo is the leading expert in the design, manufacture, hire and sale of temporary aluminium framed buildings for the industrial, distribution, retail and sport sectors.” Source: RevenueBase Database · checked Sep 17, 2026
21	DLT Engineering LTD	Partial evidence	Higham Ferrers, United KingdomHQ checked Sep 17, 2026	51-200	33 contacts →
	Partial evidence “We develop, manufacture and operate the specialist technology for modular construction of bridges, dams, refineries, power stations, offshore structures, buildings and…” Source: RevenueBase Database · checked Sep 17, 2026
22	KES Group	Indirect evidence	Strabane, United KingdomHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “KES Group brings together engineering expertise, advanced manufacturing and project delivery under one roof.” Source: RevenueBase Database · checked Sep 17, 2026
23	P Mcvey Building Systems	Partial evidence	Toomebridge, United KingdomHQ checked Sep 17, 2026	51-200	31 contacts →
	Partial evidence “P McVey Building Systems: Leading the Way in Modular and Offsite Construction Solutions With over 40 years of experience, P McVey Building Systems has become a trusted leader in…” Source: RevenueBase Database · checked Sep 17, 2026
24	Ideal Building Systems LTD	Partial evidence	Bridlington, United KingdomHQ checked Sep 17, 2026	51-200	30 contacts →
	Partial evidence “Ideal Building Systems are an independent family owned company with many years of experience in the modular building industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	Automated Architecture Auar	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “AUAR is the manufacturing partner for homebuilders.” Source: RevenueBase Database · checked Sep 17, 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: prefabricated building 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 prefabricated building companies.
Partial evidence: Its own public description names part of prefabricated building companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name prefabricated building 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 243 prefabricated building companies based in the United Kingdom

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Prefabricated building companies based in the United Kingdom at a glance

As of Sep 17, 2026

44.0%Verified-email coverage

20.0Average contacts per company

11-50Median size (employees)

9.5%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 243 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 prefabricated building 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 “prefabricated building 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 prefabricated building 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 prefabricated building 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, 2,136 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 17, 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 prefabricated building 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 prefabricated building companies are there based in the United Kingdom?

RevenueBase identified 243 prefabricated building 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?

Portakabin, headquartered in York, tops this list with the largest team on record.

Which city has the most prefabricated building companies?

London leads with 23 headquartered companies, followed by Hull (9) and York (6).

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 2,136 verified decision-maker contacts tracked across these 243 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 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 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.