Thirdway
Thirdway is a London-based interior design and fit-out practice delivering end-to-end commercial CAT A, CAT A+, and CAT B design and build services for property landlords and corporate occupiers across the UK.
- Company typePrivate
- Founded2009
- HeadquartersLondon, United Kingdom
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Thirdway does
Thirdway is a privately held UK interior design and fit-out practice headquartered in London, founded in 2009 and operating under Thirdway Group Ltd with six wholly-owned subsidiaries spanning interiors, architecture, furniture (Tribe Furniture), commercial operations (DThree Commercial), managed spaces (Thirdway Pulse), and technology (Thirdway TX). The firm delivers end-to-end commercial design and build services — covering CAT A, CAT A+, and CAT B fit-outs, architecture, workplace consultancy, design-led furniture, integrated workplace technology, and managed spaces — for commercial property landlords and corporate occupiers across England. Project scope ranges from 3,000 sq ft fit-outs to large-scale landlord-led schemes of up to £30 million handled by the Thirdway Tailored sub-brand.
The business is built on award-winning design credibility, including the FX Award for Interior Design Practice of the Year and pioneering the CAT A+ category, reinforced by sustainability credentials (BREEAM Excellent, SKA Gold). The firm’s technology stack centres on integrated delivery rather than software: in-house architecture, furniture procurement via Tribe Furniture, AV and booking systems via Thirdway Technology, and dedicated sustainability services embedded in project delivery. Thirdway monetises exclusively through bespoke project-based contracts won via enterprise field sales, reputation, industry awards, and direct client relationships, serving a diverse logo base spanning financial services (Zopa, Close Brothers, Allspring, Airwallex), AI/tech (Synthesia, Cleo AI), crypto (Copper), real estate (V7 Asset Management, Olayan Group), telecom (Vodafone), and lifestyle brands (Nyetimber, Butternut Box). The company is founder/owner-controlled under CEO Ben Gillam, with no external investors disclosed.
Thirdway firmographics
Firmographics- Name
- Thirdway
- Legal name
- Thirdway Group Ltd
- Website
- https://thirdway.com
- Company type
- Private
- Founded year
- 2009
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Thirdway is a London-based interior design and fit-out practice delivering end-to-end commercial CAT A, CAT A+, and CAT B design and build services for property landlords and corporate occupiers across the UK.
- Ownership category
- akta.pro rank
Where Thirdway is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Thirdway business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Marketing or Sales, Technology or R&D
Revenue model
- Design & Build Services: Thirdway generates revenue through project-based design and build contracts for commercial fit-out, refurbishment, and new build projects. Projects range from small 3,000 sq ft spaces to large-scale 77,350+ sq ft developments, serving both landlords and occupiers across the UK commercial property market.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Thirdway product offering
Product offeringCore offering
Thirdway is a London-based commercial interior design and build practice delivering end-to-end fit-out, architecture, workplace consultancy, design-led furniture, and integrated technology solutions. The company serves commercial property landlords seeking differentiated market-ready spaces and corporate occupiers requiring brand-aligned workplace environments. Project scopes range from 3,000 sq ft to 77,350+ sq ft, with services spanning CAT A, CAT A+, and CAT B specifications across the UK.
Product overview
Thirdway is an interior design practice offering integrated commercial fit-out, architecture, workplace consultancy, design-led furniture, and managed spaces as a unified service portfolio. The company operates primarily through its core divisions—Thirdway Interiors Ltd, Tribe Furniture Ltd, Thirdway Architecture Ltd, DThree Commercial Ltd, and Thirdway Pulse Ltd—delivering end-to-end solutions from design through construction. Specialized offerings include Thirdway Tailored (landlord-focused bespoke delivery) and Thirdway Technology/Tribe Technology (integrated AV and desk booking systems). The company pioneered the CAT A+ concept, delivering premium pre-fitted workspace solutions.
Differentiator
Problem solved
Functional benefit
Products and services
- Commercial Fit-Out
- Architecture
- Workplace Consultancy
- Design-Led Furniture (Tribe Furniture)
- Managed Spaces
- Thirdway Tailored
- CAT A+ Fit-Out
- Thirdway Technology (Tribe Technology)
- Sustainability Services
Quantifiable outcome
- Multiple projects achieving BREEAM Excellent certification
- +3 more outcomes
Companies that use Thirdway
Customer profileNamed customers15 records
Segments5 records
Ideal customer profiles3 records
Thirdway technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Thirdway partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Tribe FurniturecoreTribe Furniture, a Thirdway sister company, provides furniture sourcing and installation for Thirdway projects. They worked on Chiswick Park I sourcing furniture from suppliers across Europe and Scandinavia, and are referenced as a strategic partner for delivering complete fit-out solutions.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
Thirdway competitors and assessment
Company assessmentDirect peers
- Area: London-headquartered interior design and fit-out practice serving commercial occupiers and landlords across the UK. Directly competes with Thirdway on design-led workplace projects in similar size brackets.
- M Moser Associates: Global workplace design and build firm specialising in commercial interior fit-out and workplace strategy. Closely comparable to Thirdway in service model (architecture + fit-out + furniture), target market (enterprise occupiers and landlords), and integrated delivery approach.
- Peldon Rose: London-based workplace design and build consultancy delivering commercial fit-out and refurbishment. Comparable in geography, project scale, and enterprise occupier focus.
- SpaceInvader: UK commercial interior design and fit-out practice focusing on workplace environments. Comparable to Thirdway in mid-sized enterprise Cat B fit-outs and brand-led workplace design.
- TP Bennett: UK architecture and interior design practice with strong commercial interiors portfolio in London. Comparable to Thirdway in targeting enterprise occupiers and landlord-led commercial fit-out/refurbishment projects.
- Oktra: UK-focused commercial office design and fit-out company delivering Cat A, Cat B, and Cat A+ projects for enterprise occupiers. Directly comparable in geography, service scope, and project scale to Thirdway.
- Unispace: Global workplace strategy, design, and construction firm with strong London presence. Comparable to Thirdway in offering integrated workplace consultancy alongside fit-out delivery for enterprise clients.
Broad incumbents
- Gensler: Global architecture and design firm with deep workplace interiors practice. Overlaps with Thirdway on commercial interior design for enterprise occupiers but operates at vastly larger scale across many geographies.
- HOK: Global architecture, design, and engineering firm with significant workplace interiors practice. Comparable to Thirdway in delivering design-led commercial interiors but at much broader scale and across multiple building types.
- Tétris (JLL): Global design-and-build arm of JLL delivering commercial fit-out at scale. Comparable to Thirdway in fit-out delivery but operates as part of a much larger commercial real estate services platform with broader geographic reach.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Thirdway social profiles
Digital presenceThirdway financial estimates
Financial estimateRevenue estimate
Valuation estimate
Thirdway leadership team
Management profileNumber of profiles
Profiles6 records
Thirdway subsidiaries and ownership
Company hierarchySubsidiaries6 records
Thirdway funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Thirdway M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Thirdway
What does Thirdway do?
Thirdway is a London-based commercial interior design and build practice delivering end-to-end fit-out, architecture, workplace consultancy, design-led furniture, and integrated technology solutions. The company serves commercial property landlords seeking differentiated market-ready spaces and corporate occupiers requiring brand-aligned workplace environments. Project scopes range from 3,000 sq ft to 77,350+ sq ft, with services spanning CAT A, CAT A+, and CAT B specifications across the UK.
Is Thirdway a public or private company?
Thirdway is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Thirdway founded?
Thirdway was founded in 2009. It employs 51 to 100 people.
Where is Thirdway based?
Thirdway is headquartered in London, United Kingdom, in the Europe region.
How does Thirdway make money?
One revenue line is on record: design & Build Services.
Who are Thirdway's main competitors?
Direct peers on record are Area, M Moser Associates, Peldon Rose, SpaceInvader, TP Bennett, Oktra and Unispace. Broad incumbents are Gensler, HOK and Tétris (JLL).
Does Thirdway have an API?
No public API is recorded for Thirdway.