Best is a loaded word in a directory, so here is how this list works. A company appears if it meets at least one of three tests: it delivers enterprise scale programmes with a published track record, it has been trading for thirty years or more, or it holds B Corp certification. Nobody can pay to be included, and the order within each size band is alphabetical. The result is a shortlist of firms with the fewest unknowns, not a claim that they are right for every project.
If your project is under 5,000 sq ft, the boutique group is the useful one. Enterprise contractors are rarely competitive at that size, however good they are.
Longevity measures survival through at least two property cycles, which is a reasonable proxy for financial stability and repeat business. Scale measures delivery capability and process maturity. B Corp measures a verified commitment to environmental and social performance. None of them measure design quality, how pleasant the firm is to work with, or whether they will care about your particular job. For that, speak to two recent clients of similar size and visit one finished project.
Paid placements, clearly labelled. Featured firms are still verified the same way and still sit in the alphabetical list below.
Top of best office refurbishment companies with direct contact buttons on the card. Six slots per size band, first come first served.
See featured listingsTop of best office refurbishment companies with direct contact buttons on the card. Six slots per size band, first come first served.
See featured listingsTop of best office refurbishment companies with direct contact buttons on the card. Six slots per size band, first come first served.
See featured listingsGrouped by the floor areas each firm is set up to deliver, because that is the first thing that rules a contractor in or out. Alphabetical within each band, featured firms included, so nothing is hidden behind a paywall.
Typical projects £50k to £500k for scale ups, professional services and creative firms. One team designs, builds and furnishes.
40+ years. Director is President of the FIS board. School refurbishment specialist. Bespoke joinery.
Refurbishment led, boutique band, trading since 1985.
Estate agent interior design. Healthcare/dental surgery refurbishment. In house branding services.
Cat A and Cat B, boutique band, trading since 1990. Names Bang & Olufsen and Samsung among its clients.
The core of the London occupier market. £300k to £5m projects, usually design and build, with dedicated project managers.
Multi sector fit out delivery with UK and Asia reach.
Fit out, mid market band, 50–200 staff.
Global delivery capability for multinational clients. 45+ years experience.
Design and build, mid market band, trading since 1979.
Coworking/flex space, education, laboratory fit out. Founders of The United Workplace global network. 10+ offices across Europe.
Refurbishment led, mid market band, trading since 2000, part of Fourfront Group, 250+ (group) staff, B Corp certified. Names Citrix and Infosys among its clients.
Defect free delivery ethos. Projects £1m to £50m+. Fiercely independent. Directly employs many tradespeople.
Design and build, mid market band, trading since 2000. Names Virgin Media and O2 among its clients.
70%+ repeat business. Hybrid workspace design.
Cat A and Cat B, mid market band, trading since 1996, 120+ staff, employee owned. Names AQA and Flutter/Paddy Power among its clients.
Nearly 70 years in business. Project range £50,000 to £30 million. Cat A & Cat B fit out. Public sector.
Refurbishment led, mid market band, trading since 1955. Names Legal & General and Crown Estate among its clients.
Directly employs own tradesmen (rare in sector). Strong charity/not for profit sector presence.
Design and build, mid market band, trading since 1978. Names Shelter and L'Oréal among its clients.
Sustainability first. £150k annual sustainability commitment. VR walkthroughs. Flex/coworking design.
Fit out, mid market band, trading since 1990, 50–200 staff, B Corp certified. Names Osborne Clarke among its clients.
10,000+ projects completed.
Design and build, mid market band, trading since 1977. Names Lacoste and ServiceNow among its clients.
Landlord fit out specialists. Cat A+ plug and play spaces. People centric approach. In house tradespeople.
Cat A and Cat B, mid market band, trading since 1990.
Collaborative 6 step process. 3D visualisation. Award winning with 35+ years in the industry.
Refurbishment led, mid market band, trading since 1990.
Evidence based design. Agile working pioneer. One of the oldest firms in the market (72+ years).
Cat A and Cat B, mid market band, trading since 1953. Names Mount Street LLP and Honda among its clients.
Design & build exclusively. Coworking/flex design. University refurbishment.
Cat A and Cat B, mid market band, trading since 1995, B Corp certified. Names Gymshark and Adidas among its clients.
Three divisions: Lite (under £500k), Interiors (larger schemes), Regions (Cambridge/Home Counties). Wellness driven design.
Design and build, mid market band, trading since 1997, ~100–150 staff. Names Tech Companies among its clients.
End to end bespoke design & build. In house M&E team. 30+ years London specific experience.
Design and build, mid market band, trading since 1987, ~120–148 staff. Names Hampshire Trust Bank and Aristocrat among its clients.
RIBA qualified design team. Biophilic design. Activity based working. Multi sector (offices, schools, industrial). 30+ years.
Cat A and Cat B, mid market band, trading since 1993. Names Hudl and Arch Insurance among its clients.
25+ years experience across London, Manchester and Hampshire offices.
Design and build, mid market band, trading since 1990. Names Clearwater International and Tata Communications among its clients.
Landlord Cat A programmes, corporate headquarters and multi floor phased schemes. Usually with an independent architect and cost consultant.
Global operation with 60+ years' experience. B2B focused.
Fit out, enterprise band, trading since 1965.
Global workplace strategy and design. Biophilic design, WELL and green building certification. Research driven approach.
Fit out, enterprise band.
High end corporate fit outs, digital twin technology, programme driven delivery.
Fit out, enterprise band, trading since 1990, part of Mace Group. Names BMI and Major Financial Institutions among its clients.
Design led office fit out, workplace consultancy, biophilic design. 78%+ repeat business rate.
Refurbishment led, enterprise band, trading since 1977, part of Morgan Sindall Group plc, 201–500 staff. Names UniCredit and Greystar among its clients.
UK's leading fit out specialist. 91% net promoter score. Projects up to £200m.
Design and build, enterprise band, trading since 1942, part of Morgan Sindall Group plc, ~1,000 staff. Names Virgin Media O2 and GSK among its clients.
Major global player in corporate fit out with significant London operations.
Fit out, enterprise band, part of STO Building Group.
Global design & build backed by world's largest real estate services company. Operates in 20+ countries with local London expertise.
Fit out, enterprise band, part of JLL.
Integrated strategy design construction. London serves as EMEA HQ. Brands include Unispace Life Sciences, Bulb Interiors, Downstream.
Fit out, enterprise band, trading since 2010. Names Zoom Communications among its clients.
Heritage preservation, sustainable refurbishment, public sector. 500,000+ sq ft delivered in prestigious London locations.
Design and build, enterprise band, trading since 1852, part of Willmott Dixon Group, 4,000+ (group) staff.
Tell us the floor area, the budget and the timing and we will introduce three suitable firms from the directory. No fee, no obligation, and no company pays for the introduction.
Get matchedIt is not ranked. Companies qualify by meeting at least one objective test (enterprise scale, thirty plus years trading, or B Corp certification) and are listed alphabetically within size bands. No company pays to appear.
Either it does not yet meet one of the three tests, or it is not in the directory. Any London office refurbishment company can claim a free listing by emailing [email protected].