Company lists · Data refreshed September 2026

Top 25 Tenant improvement contractors based in the United Kingdom

Name: Tenant improvement 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 19, 2026 918 companies tracked

RevenueBase identified 918 company matches for tenant improvement contractors associated with the United Kingdom as of September 2026 and tracks 5,179 professional contacts across them, including 2,247 with verified work emails. London is the largest hub.

This list covers company matches for tenant improvement 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 September 19, 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 Sep 19, 2026 How this list was built

918Companies

5,179Contacts tracked

2,247Verified emails

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The 25 largest tenant improvement contractors based in the United Kingdom

Ranked by team size

Top 25 of 918 company matches for tenant improvement contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	Maris Interiors	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	230 contacts →
	Exact match “Maris Interiors LLP - We create award winning interior spaces and are the UK's leading specialist in both workplace and education space design and build.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Harvey Shopfitters Limited	Exact match	Bristol, United KingdomHQ recorded Sep 19, 2026	51-200	96 contacts →
	Exact match “Among the top 20 leisure, retail, office & commercial fit-out contractors in the UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Workplace Creations	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	94 contacts →
	Exact match “We are an award-winning Design & Build contractor specialising in commercial interiors and consultancy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Cubicworks	Exact match	Manchester, United KingdomHQ recorded Sep 19, 2026	51-200	90 contacts →
	Exact match “Our industry can be a difficult market place to navigate.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	KITT	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	77 contacts →
	Exact match “Kitt manages workspaces for companies that want an office worth leaving home for.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	ADT Workplace	Exact match	Greenside Way, United KingdomHQ recorded Sep 19, 2026	51-200	67 contacts →
	Exact match “At ADT Workplace, we excel in creating inspiring office spaces for businesses of all sizes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	APSS	Exact match	Lincoln, United KingdomHQ recorded Sep 19, 2026	11-50	52 contacts →
	Exact match “APSS - Commercial interior design and fit out specialists since 1997.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Greenmount Projects	Exact match	Ashton-in-makerfield, United KingdomHQ recorded Sep 19, 2026	11-50	48 contacts →
	Exact match “We are an award-winning, turnkey design, construction, and maintenance company transforming commercial spaces in the North West.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Pure Fitout	Exact match	Belfast, United KingdomHQ recorded Sep 19, 2026	51-200	47 contacts →
	Exact match “We believe in providing a fully integrated outlook on development and fit out using sustainable construction, and environmental best practices at all times.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Rhino Interiors Group	Exact match	Birmingham, United KingdomHQ recorded Sep 19, 2026	11-50	47 contacts →
	Exact match “Rhino Interiors Group are a leading commercial specialist for Workplace Consultancy and Office Design, Office Fit-out/Refurbishment, Office Furniture, Warehousing…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Beacons Business Interiors	Exact match	Brecon, United KingdomHQ recorded Sep 19, 2026	51-200	43 contacts →
	Exact match “Commercial Interior Design and fit-out specialists.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	RSR	Exact match	Milton Keynes, United KingdomHQ recorded Sep 19, 2026	51-200	43 contacts →
	Exact match “For more than 20 years, RSR has been supporting many great companies with office design, construction and maintenance projects, creating inspirational workplaces that motivate…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Headoffice3	Exact match	Leeds, United KingdomHQ recorded Sep 19, 2026	51-200	43 contacts →
	Exact match “Welcome to headoffice3, specialists in complex and time-critical construction projects, and especially office-to-residential conversions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	CDS Wilman	Exact match	Manchester, United KingdomHQ recorded Sep 19, 2026	11-50	41 contacts →
	Exact match “We are award-winning design and build specialists for restaurants, retail, hospitality, and workplaces, delivering projects from concept to completion for both back of house and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	MWA Projects	Exact match	Henley-on-thames, United KingdomHQ recorded Sep 19, 2026	11-50	41 contacts →
	Exact match “We’re experts in workspace transformation for commercial offices and retail occupiers, with clients ranging from SMEs to international luxury brands.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Blue Jelly	Exact match	Windsor, United KingdomHQ recorded Sep 19, 2026	11-50	39 contacts →
	Exact match “Blue Jelly is a full service provider of Design, Fit out and Furniture for tenants and landlords across the UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Artichoke	Exact match	Cheddar, United KingdomHQ recorded Sep 19, 2026	11-50	39 contacts →
	Exact match “We are a company with strong values.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	IFSE	Exact match	Croydon, United KingdomHQ recorded Sep 19, 2026	11-50	38 contacts →
	Exact match “We’re your restaurant design, cafe design and commercial kitchen design experts.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	RAP Interiors	Exact match	Maidstone, United KingdomHQ recorded Sep 19, 2026	11-50	37 contacts →
	Exact match “Rap Interiors provide an award winning, complete solution for office refurbishments for business, commercial, public sector, Housing Associations, blue chip companies throughout…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	BULB	Exact match	Beech Hill, United KingdomHQ recorded Sep 19, 2026	11-50	34 contacts →
	Exact match “We are commercial interior fit-out specialists in office, laboratory and healthcare sectors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Estilo Interiors	Exact match	Birmingham, United KingdomHQ recorded Sep 19, 2026	11-50	34 contacts →
	Exact match “Estilo are a leading main contractor specialising in the design and build of commercial interior fit out and refurbishment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Saracen Group	Exact match	London, United KingdomHQ recorded Sep 19, 2026	51-200	33 contacts →
	Exact match “Saracen Group is one of the UK's most trusted office interiors specialists, offering a full range of services from space planning and design to fit out and facilities management.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Delcon Construction LTD	Exact match	Victoria, United KingdomHQ recorded Sep 19, 2026	11-50	31 contacts →
	Exact match “Delcon Construction Limited specialise in the delivery of luxury retail, high end residential, restaurant and art gallery projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Virtus	Exact match	London, United KingdomHQ recorded Sep 19, 2026	11-50	31 contacts →
	Exact match “We aim to bring our wealth of experience to the management of any construction or re-fit programme.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Mccarthys	Exact match	Coventry, United KingdomHQ recorded Sep 19, 2026	11-50	31 contacts →
	Exact match “We are McCarthys, a family-run business delivering inspiring spaces since 1979.” Recorded in the RevenueBase company graph · Sep 19, 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 “tenant improvement 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 918 tenant improvement contractors based in the United Kingdom

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Tenant improvement contractors based in the United Kingdom at a glance

As of Sep 19, 2026

43.4%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

24.8%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

547

11-50

325

51-200

201-500

1,001-5,000

5,001-10,000

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 918 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 “tenant improvement 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 2,247 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 September 19, 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 “tenant improvement contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tenant improvement contractors are there based in the United Kingdom?

RevenueBase identified 918 company matches for tenant improvement contractors associated with the United Kingdom as of September 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?

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

Which city has the most tenant improvement contractors?

London leads with 228 company records, followed by Manchester (16) and Birmingham (14).

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 2,247 professional contacts with verified work emails tracked across these 918 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 September 19, 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.