What Troup Bywaters + Anders does

Troup Bywaters + Anders LLP (TB+A) is a UK building services engineering consultancy founded in 1958 and headquartered at 183 Eversholt Street, London. The firm operates as a partner-led Limited Liability Partnership (transitioned from a General Partnership in 2024) with approximately 300 employees across eight offices — seven in the UK (London, Belfast, Cardiff, Edinburgh, Glasgow, Leeds, Manchester) and one in Wroclaw, Poland. It delivers whole-life engineering services across the building lifecycle — from planning and construction through to operation, facilities management and ongoing asset management — for clients in Commercial, Healthcare, Government, Education, Retail+Leisure, Residential, Media+Heritage, and Custodial+Judicial sectors.

TB+A's core offering is Engineering Services Design (mechanical, electrical and plumbing design), supported by ten additional service lines including Architectural Lighting, Building Performance, Intelligent Buildings (BMS/iBEMS integration), Strategic Asset Management, Strategic Facilities Management, Sustainability and BREEAM consultancy, Technical Project Management, Vertical Transportation, Health and Wellbeing, and Construction Expert services. The firm's technical platform is built on BIM Level 2 delivery using REVIT and BIM 360, ISO 19650-2:2018 information management certification, dynamic thermal modelling (PHPP analysis) for Passivhaus targets, and co-authorship of the LETI Climate Emergency Design Guide, alongside participation in the UKNZCBS trial with The Crown Estate covering 200+ buildings.

Revenue is generated through professional services fees from project-based appointments, framework agreements (SWPA, Welsh Procurement, NHS SBS, Procure Partnerships, LHC Construction Consultants Services 2) and direct enterprise commissions. Private sector clients appoint TB+A directly or as part of wider design teams, while public sector work is delivered via preferred-consultant status on OJEU-compliant frameworks. Named engagements span a £146m hospital redevelopment for Bedfordshire Hospitals NHS Foundation Trust, BREEAM Outstanding headquarters for News Corp and Havas UK, BREEAM Excellent/WELL Platinum workplace for CBRE at Henrietta House, and a global flagship office for PwC in Belfast. The firm is privately held with no external private equity or venture capital ownership indicated.

Name

Troup Bywaters + Anders

Legal name

Troup Bywaters + Anders LLP

Website

https://tbanda.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

251–500 employees

Short description

Troup Bywaters + Anders LLP is a UK building services engineering consultancy founded in 1958, delivering whole-life MEP design, sustainability and asset management services from eight offices across the UK and Poland for enterprise and public sector clients.

Ownership category

akta.pro rank

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Building Services Consultancy: Professional engineering consultancy fees for building services design, project management, facilities management, and strategic asset management across the building lifecycle. Revenue is generated through project-based fees, framework agreements, and direct appointments for both public and private sector clients.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels9 records

Core offering

TB+A LLP is a building services engineering consultancy providing whole-life services across the building lifecycle. Its core offering is full mechanical, electrical and plumbing (MEP) engineering design, complemented by strategic asset management, strategic facilities management, sustainability consultancy, building performance analysis, intelligent buildings, technical project management, architectural lighting, vertical transportation, construction expert witness and health and wellbeing services. Services are delivered to public and private sector clients across commercial, healthcare, education, government, residential, retail/leisure, custodial/judicial and media/heritage sectors from eight offices in the UK and Poland.

Product overview

Troup Bywaters + Anders LLP (TB+A) is a building services engineering consultancy providing whole-life services across the building lifecycle. Their portfolio comprises 11 distinct service offerings organized around a core Engineering Services Design capability for mechanical, electrical, and plumbing systems. The services are delivered through a 'whole-life' approach covering planning, construction, operation, and ongoing management. Service verticals include Architectural Lighting, Building Performance, Construction Expert, Health and Wellbeing, Intelligent Buildings, Strategic Asset Management, Strategic Facilities Management, Sustainability (including BREEAM and net-zero consultancy), Technical Project Management, and Vertical Transportation. These services span multiple sectors including Commercial, Education, Government, Healthcare, Leisure, Residential, and Retail across the UK and Europe from eight offices.

Differentiator

Problem solved

Functional benefit

Products and services

• Engineering Services Design Full mechanical, electrical and plumbing (MEP) engineering design services for building services across all sectors, delivered by professional design engineers as the core capability of the partnership.
• Strategic Asset Management Long-term asset management strategies to optimise building performance, maintenance and lifecycle costs, provided to property owners and occupiers across the building lifecycle.
• Strategic Facilities Management Facilities management consultancy including FM strategy development, operational oversight and performance optimisation for clients' property portfolios.
• Sustainability Sustainability consultancy including decarbonisation strategies, net-zero roadmaps, BREEAM assessment and ESG advisory services for clients across all sectors.
• Building Performance Building physics consultancy and performance analysis to optimise energy efficiency, thermal comfort and operational efficiency of buildings, including Passivhaus and dynamic thermal modelling.
• Intelligent Buildings Smart building solutions integrating BMS, iBEMS and automation systems for intelligent building control, monitoring and operational performance.
• Technical Project Management Project management services for building services projects from planning through construction and delivery, coordinating engineering teams and design partners.
• Architectural Lighting Professional lighting design services for architectural projects, integrating lighting and architecture to create distinctive building aesthetics.
• Vertical Transportation Consultancy services for lifts, escalators and vertical transportation systems including design review and asset management.
• Construction Expert Expert witness and construction consultancy services including technical support during construction phases and regulatory compliance.
• Health and Wellbeing Engineering solutions focused on occupant health, comfort and wellbeing including indoor air quality and thermal comfort assessments.

Quantifiable outcome

• Carbon emissions 60% less than typical prestige standard office (News UK HQ)
• +4 more outcomes

Named customers11 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

16 partnerships are on record, tiered minor and core.

• CRASH (Construction Industry Relief and Support for Homelessness)minorStrategic or Co-development Partner · 1 May 2026TB+A became a Corporate Patron of CRASH, a charity uniting businesses across the construction industry to support homelessness charities and hospices through the creation of safe, well-designed environments. Head of IMS + ESG Claire Bower visited Ellenor Hospice to gain first-hand insight into the impact of CRASH projects. TB+A channels technical knowledge and experience into meaningful, lasting impact for people and communities.
• British Council for Offices (BCO) - Gold SponsorcoreGTM or Marketing Partner · 1 January 2026Gold Sponsor of the BCO Annual Conference 2026 in Edinburgh and Glasgow. TB+A leads a featured workshop on UKNZCBS and NABERS with Mark Richardson, Partner, as speaker. TB+A also hosts fringe events including a 5K Run and networking reception at The Huxley.
• Polish Green Building Council (PLGBC)coreStrategic or Co-development Partner · 1 May 2025TB+A's Poland office joined the PLGBC, a leading sustainability network bringing together organisations, experts, and innovators shaping the future of the built environment in Poland. This membership reflects TB+A's commitment to sustainability in both operations and project delivery in Poland.
• UK Green Building Council (Climate Resilience Roadmap)coreStrategic or Co-development Partner · 1 January 2025TB+A contributed to the UKGBC Climate Resilience Roadmap launched during London Climate Action Week 2025. Eliot Powell, Sustainability Consultant, provided insights on climate risks facing buildings and tools to develop resilience.
• UKGBC Solutions & Innovation Advisory PanelcoreStrategic or Co-development Partner · 1 January 2025Eliot Powell, Sustainability Consultant at TB+A, is a member of UKGBC's Solutions & Innovation Advisory panel and contributed to the UKGBC's top 14 trends shaping sustainable solutions in the built environment.
• Supply Chain Sustainability SchoolcoreStrategic or Co-development Partner · 1 January 2025Achieved Gold Membership of the Supply Chain Sustainability School, a free learning platform dedicated to embedding sustainability across the built environment. TB+A completed reassessment of its sustainability approach and shared its own sustainability journey through a case study.
• United Nations Global CompactcoreStrategic or Co-development Partner · 1 June 2024TB+A joined the UN Global Compact initiative, a voluntary leadership platform for responsible business practices. TB+A aligns operations and strategies with ten universally accepted principles in human rights, labour, environment and anti-corruption, and takes action supporting UN Sustainable Development Goals.
• Think & Do CamdenminorStrategic or Co-development Partner · 1 January 2024Think & Do Camden is a community space for climate and social action working to help Camden become a net-zero borough by 2030. TB+A supported their Green Dragons Den event bringing together 12 local primary schools. Riya Majithia from TB+A sat on the judging panel.
• The Crown Estate (UK Net Zero Carbon Buildings Standard Trial)coreStrategic or Co-development Partner · 1 January 2024TB+A partnered with The Crown Estate in the UK Net Zero Carbon Buildings Standard trial involving over 200 buildings across multiple sectors. TB+A participated in the trial from early design through to operation and retrofit, contributing to setting science-based performance metrics.
• CIBSE (Chartered Institution of Building Services Engineers)coreStrategic or Co-development Partner · 1 January 2024TB+A plays an active role in influencing government policy, legislation and industry guidance through corporate and personal professional memberships. David Arnold is a CIBSE Past President; Managing Partner Peter Anderson and Associate Jill Hoggan sit on the Building Safety Working Group; Neil Panton sits on the T&D Panel. TB+A is also a Trailblazer in apprenticeships.
• Climate Impact PartnerscoreStrategic or Co-development Partner · 1 January 2024TB+A achieved CarbonNeutral company certification for 2024-2025 through Climate Impact Partners, who provide the CarbonNeutral protocol and independent assessment. TB+A supports carbon offset projects including Bondhu Chula Stoves (Bangladesh), Ecofiltro (Guatemala), Kulera REDD+ (Malawi), and Community Energy Solutions (India).
• Durrell Wildlife Conservation Trust (Rewild Carbon Programme)coreStrategic or Co-development Partner · 1 January 2021Partnership since 2021 with investment into the Rewild Carbon programme, a nature-based climate solution. TB+A has helped plant and nurture approximately 12,128 native trees contributing to 327,759 trees planted, 200.5 hectares of forest under restoration, and 75,333 tonnes CO2 absorbed. This investment supports TB+A's 2030 net zero goal and is part of its broader ESG commitment.
• World Green Building Council (Net Zero Carbon Buildings Commitment)coreStrategic or Co-development Partner · 1 January 2020Signatory to the World Green Building Council Net Zero Carbon commitment. TB+A is also a member of the UK Green Building Council and co-author of the LETI Climate Emergency Design Guide.
• UK Green Building CouncilcoreStrategic or Co-development Partner · 1 January 2020Member of the UK Green Building Council, contributing to climate resilience roadmap development. TB+A's Eliot Powell is a member of UKGBC's Solutions & Innovation Advisory panel and contributed to the UKGBC Trends Report 2024.
• London Energy Transformation Initiative (LETI)coreStrategic or Co-development Partner · 1 January 2020TB+A is a co-author of the LETI Climate Emergency Design Guide, which sets guidelines for the industry on net zero carbon buildings covering operational energy, embodied carbon, heat, demand response, and data disclosure. LETI is a voluntary network of over 1000 built environment professionals.
• Camden Climate AllianceminorStrategic or Co-development Partner · 1 January 2020Member of the Camden Climate Alliance maintaining 'Team Green' and 'Carbon Champion' Marks of Achievement year on year. TB+A engages with local primary schools through the 'Sustainability Superheroes' initiative.

Scale indicators11 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• WSP: One of the world's largest engineering professional services firms with a substantial building services design and sustainability practice across the UK, providing MEP engineering, decarbonisation advisory and whole-life asset management — broadly overlapping with TB+A across most of TB+A's core services, but operating at vastly greater scale.
• Arup: Global engineering and design consultancy with leading UK building services design, Passivhaus and net zero building expertise — closely comparable service mix and sector exposure to TB+A, but with materially greater scale and international footprint.
• Mott MacDonald: Major UK-headquartered engineering consultancy with significant building services and healthcare estates practice — directly comparable in NHS framework positioning and whole-life engineering delivery, though with broader infrastructure and water exposure.
• Ramboll: Global engineering, design and sustainability consultancy with substantial UK building services practice — overlapping with TB+A in net zero and BREEAM advisory, though much larger and broader in sector coverage.

Direct peers

• Buro Happold: UK-headquartered building services and sustainability engineering consultancy of broadly similar size and service mix to TB+A — among the closest direct competitors, with strong credentials in Passivhaus, BIM, BREEAM and net zero advisory across commercial, healthcare and education sectors.
• Hoare Lea: UK-based building services engineering consultancy providing MEP design, sustainability and asset management — TB+A's most direct UK peer in terms of service portfolio, sector mix and consultancy culture, although typically larger in headcount.
• Cundall: UK and Australia-headquartered building services engineering consultancy with MEP, sustainability and intelligent buildings expertise — closely comparable to TB+A in service offering and Whole Life Carbon leadership position.
• Atelier Ten: Environmental engineering consultancy specialising in building performance, Passivhaus and net zero design — a niche peer that competes directly with TB+A on sustainability-led, high-performance UK building projects.
• Pick Everard: UK building services and structural engineering consultancy delivering MEP design, sustainability, asset management and BIM services across the public and private sectors — comparable mid-sized peer with similar whole-life positioning.
• Hilson Moran: UK-based building services engineering consultancy providing MEP design, sustainability and intelligent buildings services — closely comparable mid-sized peer competing directly with TB+A in commercial fit-out, higher education and heritage sectors.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCHhrnpgTMPZ1Lu9j5QcPcSw/featured
• Facebookfacebook.com/troupbywaters
• LinkedInlinkedin.com/company/troup-bywaters-and-anders
• Xx.com/troupbywaters

Compliance20 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Troup Bywaters + Anders