Company lists · Data refreshed November 2026

Top 25 Commercial interior contractors based in the United Kingdom

Name: Commercial interior contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 4,099 companies tracked

RevenueBase identified 4,099 company matches for commercial interior contractors associated with the United Kingdom as of November 2026 and tracks 32,350 professional contacts across them, including 11,336 with verified work emails. London is the largest hub.

This list covers company matches for commercial interior contractors 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 6, 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 6, 2026 How this list was built

4,099Companies

32,350Contacts tracked

11,336Verified emails

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The 25 largest commercial interior contractors based in the United Kingdom

Ranked by team size

Top 25 of 4,099 company matches for commercial interior contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Willmott Dixon	Exact match	Letchworth Garden City, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	2,293 contacts →
	Exact match “Willmott Dixon is a privately-owned construction and interior fit-out specialist with the ambition to create a huge and lasting positive, impact on our society.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	ISG	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,637 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 6, 2026 · View company records in RevenueBase
3	Winvic Construction LTD	Exact match	Northampton, United KingdomHQ recorded Nov 6, 2026	201-500	705 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 6, 2026 · View company records in RevenueBase
4	Errigal	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	370 contacts →
	Exact match “Established in 1996, Errigal is a market leader in the interior fitout sector for Ireland, the UK and abroad.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Collins Construction LTD	Exact match	Croydon, United KingdomHQ recorded Nov 6, 2026	51-200	251 contacts →
	Exact match “Collins has been established since 1956 and our core business has always been the provision of refurbishment and fit out services to owners and occupiers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	FIT OUT UK LTD	Exact match	Park Royal, United KingdomHQ recorded Nov 6, 2026	201-500	247 contacts →
	Exact match “Fit Out UK are a leading interior fit out, logistics and relocation contractor specialising in the Retail, Banking, Leisure, Commercial and Residential sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	JCA Engineering	Exact match	Stevenage, United KingdomHQ recorded Nov 6, 2026	201-500	241 contacts →
	Exact match “JCA is a multi-faceted engineering services and construction business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Clark Contracts	Exact match	Paisley, United KingdomHQ recorded Nov 6, 2026	201-500	203 contacts →
	Exact match “Founded in 1978, Clark Contracts Ltd is a privately owned main contractor with several operating divisions; Construction, Fit Out, Refurbishment, Housing and Maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	ITC	Exact match	Croydon, United KingdomHQ recorded Nov 6, 2026	51-200	184 contacts →
	Exact match “Established in 1992 ITC are a successful refurbishment and fit out contractor, who deliver exceptional projects in London and the surrounding areas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Loughton Contracts PLC	Exact match	Loughton, United KingdomHQ recorded Nov 6, 2026	51-200	171 contacts →
	Exact match “As the UK's leading commercial flooring contractor we can help you with all things flooring -everything from product, technical, environmental and specification advice to supply…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Group Metropolitan	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	162 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 6, 2026 · View company records in RevenueBase
12	Knight Harwood	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	157 contacts →
	Exact match “We turn visions into reality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Thomas Johnstone LTD	Exact match	Inchinnan, United KingdomHQ recorded Nov 6, 2026	51-200	155 contacts →
	Exact match “Delivering excellence since 1868.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Mountjoy	Exact match	Portsmouth, United KingdomHQ recorded Nov 6, 2026	201-500	136 contacts →
	Exact match “Mountjoy provides professional and high quality construction, refurbishment, building maintenance and facilities management services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	SJS	Exact match	Musselburgh, United KingdomHQ recorded Nov 6, 2026	51-200	136 contacts →
	Exact match “SJS is a professional and well established fit-out and refurbishment contractor based in Musselburgh, with a reputation for affordable quality and exceptional service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Wates Smartspace	Exact match	Leatherhead, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	130 contacts →
	Exact match “Wates Smartspace is a fit out and refurbishment part of Wates Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	The KDM Group	Exact match	Dalgety Bay, United KingdomHQ recorded Nov 6, 2026	51-200	119 contacts →
	Exact match “From concept to handover, main contractor, specialist fit-out, M&E and in-house bespoke manufacturing across the UK, Ireland & mainland Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Ashe Group	Exact match	Hitchin, United KingdomHQ recorded Nov 6, 2026	51-200	119 contacts →
	Exact match “Ashe Construction is part of the Ashe Group and is a regional construction company operating from our head office in Hertfordshire.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	AD Construction Group	Exact match	Sidcup, United KingdomHQ recorded Nov 6, 2026	51-200	114 contacts →
	Exact match “Founded in 1944, AD Construction Group Ltd is a long-established building maintenance and refurbishment contractor delivering high-quality projects across London and the South…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Ellmer Construction	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	107 contacts →
	Exact match “Ellmer Construction specialise in high quality fit out, refurbishment and new developments across London and the Home Counties.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Odgroup	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	106 contacts →
	Exact match “ODGroup is a main contractor that brings projects to life with integrated, high-quality design, project management and construction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Gradus Limited	Exact match	Macclesfield, United KingdomHQ recorded Nov 6, 2026	201-500	104 contacts →
	Exact match “Gradus is an international market-leading interior contract solutions provider, with an outstanding reputation for quality products, built over 50 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Harvey Shopfitters Limited	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	51-200	103 contacts →
	Exact match “Among the top 20 leisure, retail, office & commercial fit-out contractors in the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	GPF Lewis PLC	Exact match	Kings Langley, United KingdomHQ recorded Nov 6, 2026	51-200	101 contacts →
	Exact match “We are an established construction, refurbishment and maintenance specialist concentrating our skill sets over multiple sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Magrock	Exact match	West Malling, United KingdomHQ recorded Nov 6, 2026	51-200	100 contacts →
	Exact match “Established in 2016, Magrock has rapidly grown into one of the Uk’s most trusted contractors, a reputation earned by doing things differently.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial interior contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 4,099 commercial interior contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 11,336 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial interior contractors based in the United Kingdom at a glance

As of Nov 6, 2026

35.0%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

20.3%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,156

11-50

1,452

51-200

268

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 4,099 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 “commercial interior contractors” 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 11,336 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 6, 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.

Commercial interior contractors by metro

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 “commercial interior contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial interior contractors are there based in the United Kingdom?

RevenueBase identified 4,099 company matches for commercial interior contractors 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?

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

Which city has the most commercial interior contractors?

London leads with 831 company records, followed by Manchester (77) and Birmingham (53).

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 11,336 professional contacts with verified work emails tracked across these 4,099 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 6, 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.