What QuinnRoss Consultants does

QuinnRoss Consultants is a UK-based building services consultancy founded in 1998 by Derek Quinlan and Jeremy Prosser, delivering mechanical, electrical, and public health (MEP) engineering design alongside environmental/sustainability, vertical transportation, and BIM/digital engineering services. The firm operates from two offices — a Kent headquarters in Bobbing/Sittingbourne and a London office — under two legal entities (QuinnRoss Ltd and QuinnRoss London Ltd), serving enterprise clients across more than 12 sectors including healthcare, education, hospitality, aviation, commercial real estate, residential development, heritage/culture, and retail. The core technology stack centres on industry-standard engineering and BIM tools, specifically IES for dynamic thermal modelling and Revit/AutoCAD/Navisworks for coordinated 3D design delivery, with no disclosed proprietary platform or AI/ML component.

The business model is project-based professional services: QuinnRoss charges design and consultancy fees on a per-engagement basis across RIBA design stages, with no productised, SaaS, or licensing revenue stream disclosed. Enterprise client logos include Accor, CBRE Global Investors, Gatwick Airport, the NHS (under a 2018 Framework agreement), Berkeley Group, Barratt London, Champneys, Novotel, Premier Travel Inn, Rolex, Nobu, Christ's Hospital School, London Luton Airport, Ardmore Group, Purcell Architecture, Midgard, Tikehau, and Best Star Real Estate. In 2021 the firm extended its offering into decarbonisation and low-carbon design through the QuinnRoss Energy sub-brand.

Current leadership comprises Managing Director Sam Quinlan, Technical Director Paul Vine, and Commercial Director Kevin Willoughby (joined 2016), supported by five Operations Directors across mechanical, electrical, environmental, and business disciplines. The firm is actively recruiting BIM/Revit coordinators, graduate engineers, and trainees and is delivering active projects through 2025-2026, including the £110M Sutton Point development, 25 Finsbury Circus, 83 Pall Mall, and London Luton Airport works.

Name

QuinnRoss Consultants

Legal name

QuinnRoss Ltd

Website

https://quinnross.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

UK building services consultancy founded 1998, delivering MEP design, environmental/sustainability, and BIM engineering across 12+ sectors for enterprise clients including Gatwick Airport, NHS, CBRE, Accor, Berkeley Group, and Barratt London, with a QuinnRoss Energy sub-brand for decarbonisation advisory.

Ownership category

akta.pro rank

Product category

Building Services Engineering Consulting

NAICS

Engineering Services (541330), Environmental Consulting Services (54162)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

akta.pro secondary industry

Sustainable/Green Building & LEED Consulting (BPAHAKAG)

Keywords

• Building services consultancy
• MEP design services
• Energy sustainability consulting
• Mechanical electrical design
• Building information modeling

Headquarters

HQ city

Bobbing

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Building Services Consultancy Fees: Professional consultancy fees charged for MEP design, sustainability consulting, and engineering services on construction projects. Revenue is project-based, typically billed on a fixed-fee or percentage-of-construction-value basis for design commissions, with additional fees for site inspections, commissioning management, and expert witness services.
2. Energy and Sustainability Services: Specialist energy consulting services delivered through QuinnRoss Energy subsidiary, including SAP calculations, SBEM assessments, EPC certifications, energy statements, and carbon benchmarking. May include renewable technology design and MEES compliance assessments.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

QuinnRoss Consultants provides professional building services engineering consultancy specialising in Mechanical, Electrical, and Public Health (MEP) design, energy modelling, sustainability assessment, and site inspections for construction projects. The firm delivers end-to-end support from RIBA Stages 4–6 through commissioning, covering mechanical and electrical system design, BREEAM certification, BIM coordination, and commissioning management. A dedicated QuinnRoss Energy division provides SAP/SBEM calculations, EPCs, energy statements, and carbon benchmarking services.

Product overview

QuinnRoss Consultants is a building services and sustainability consulting firm that operates as a single-brand company offering integrated MEP (Mechanical, Electrical, and Public Health) engineering services. The company is organized into eight core service offerings: Site Inspections, Construction Support, Building Accreditation, Project and Data Management, Energy and Sustainability, Mechanical Design, Electrical Design, and Public Health Design. Additionally, the company has a separate subsidiary brand called QuinnRoss Energy that specializes in energy and sustainability solutions. The portfolio is delivered through a unified consultancy approach, with services ranging from building surveys and condition assessments to full MEP design and sustainability certification support.

Differentiator

Problem solved

Functional benefit

Brands

• QuinnRoss Energy: A separate part of the business that focuses on delivering tailored energy and sustainability solutions, helping projects meet environmental goals and regulatory standards.

Products and services

• Site Inspections Building inspection services including acquisition surveys, condition reports, dilapidations schedules, asset surveys, due diligence, thermographic surveys, and measured surveys, delivered to property owners, investors, and developers.
• Construction Support Pre-commissioning inspections, commissioning management, witnessing, expert witness, progress reporting, snagging inspections, BREEAM audit compliance/support, contractor support, and operation and maintenance manuals for construction projects.
• Building Accreditation Building certification services including BREEAM, ESOS, LEED, Code for Sustainable Homes, and Minimum Energy Efficiency Standard (MEES) compliance support for property developers and owners.
• Project and Data Management Project management for building services-led projects, data collection and monitoring, data management and distribution, online services and portals, and client or residential liaison.
• Energy and Sustainability Energy statements, SAPs, SBEMs and EPCs, energy compliance, renewable technology, summertime overheating assessments, daylight analysis, dynamic thermal modelling, building physics, and energy and carbon benchmarking and auditing for new-build and refurbishment projects.
• Mechanical Design Design services for air conditioning, mechanical ventilation, mixed-mode and natural ventilation, comfort cooling, refrigeration, automatic controls and building management systems, gas services, compressed air, laboratory services, utilities, district heating, space heating, domestic hot and cold water services, fire protection, and passive design measures.
• Electrical Design Design services for high and low voltage power infrastructure, mains distribution, standby generation, power supplies, IT and fibre voice data infrastructure, alarm systems, access control, security systems, audio visual, earthing systems, lighting and emergency lighting, building automation, smart building, and metering.
• Public Health Design Design services for external foul and surface water drainage systems, internal sanitary and waste plumbing systems, below ground drainage, and SUDS (Sustainable Urban Drainage Systems).
• QuinnRoss Energy A separate division of QuinnRoss delivering tailored energy and sustainability solutions, including SAP calculations, SBEM assessments, EPC certifications, energy statements, carbon benchmarking, renewable technology design, and MEES compliance assessments.

Quantifiable outcome

• 70% of 25 Finsbury Circus building pre-let at completion
• +1 more outcomes

Named customers16 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core.

• QuinnRoss EnergycoreStrategic or Co-development PartnerSubsidiary company created to focus specifically on energy and sustainability services. Operates as a separate business unit under the QuinnRoss brand, delivering tailored energy statements, SAP/SBEM calculations, EPCs, renewable technology design, and sustainability solutions. Allows the parent company to specialise in core MEP consultancy while providing dedicated energy expertise.
• MidgardcoreStrategic or Co-development PartnerProperty developer client for the 25 Finsbury Circus heritage office project. QuinnRoss providing full MEP design and coordination from RIBA Stages 4-6 on this complex listed building development.
• TikehaucoreStrategic or Co-development PartnerInvestment firm and project partner for The Metcalf, 83 Pall Mall office refurbishment. QuinnRoss worked as part of the client team from project inception providing strategic guidance and delivery excellence.
• Best Star Real EstatecoreStrategic or Co-development PartnerProject partner and investor for The Metcalf, 83 Pall Mall office refurbishment in St James's, London.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Sweco UK: European engineering consultancy with significant UK building services and sustainability operations. Comparable MEP and energy modelling capabilities for commercial, residential, and public-sector building projects, though part of a much larger pan-European platform.
• Buro Happold: International engineering consultancy with deep UK presence in building services, structural, and sustainability engineering. Overlaps with QuinnRoss on MEP and sustainability commissions for major commercial, heritage, and healthcare developments but operates at significantly larger scale with broader disciplines.
• Mott MacDonald: Global engineering, management, and development consultancy with UK buildings practice covering MEP, sustainability, and energy services. Overlaps on large-scale healthcare, commercial, and aviation developments but serves a broader portfolio of sectors and geographies.
• WSP UK: Global professional services firm with a large UK buildings practice delivering MEP, sustainability, and energy consulting. Competes with QuinnRoss on major commercial and infrastructure-linked building commissions but at substantially greater scale and breadth.
• Arup: Global engineering consultancy with deep UK buildings and sustainability practices, regularly engaged on landmark commercial, healthcare, and heritage projects alongside architects and developers. Comparable MEP/sustainability service offering, but at multinational scale and with far broader sector reach.

Direct peers

• Cundall: Multidisciplinary engineering consultancy with strong UK MEP, structural, and sustainability practices across buildings, mission-critical, and infrastructure. Comparable service offering (MEP + sustainability/BREEAM) and direct overlap on developer and contractor-led building projects in the UK.
• Pick Everard: UK building services and multidisciplinary consultancy providing MEP design, sustainability, and project management across public and private sector construction. Comparable in serving developers, contractors, and public-sector clients on building projects of similar mid-scale complexity.
• Hoare Lea: One of the UK's largest independent building services (MEP) engineering consultancies, delivering mechanical, electrical, public health, sustainability, and energy design across commercial, healthcare, education, and heritage sectors. Direct peer given identical MEP + sustainability service mix and UK-focused building services delivery model.
• BDP (Building Design Partnership): Major UK-headquartered multidisciplinary design practice with full MEP, sustainability, and energy services alongside architecture. Comparable in delivering integrated building services design to commercial, healthcare, education, and residential developers across the UK and internationally.
• Hilson Moran: UK-based building services and sustainability engineering consultancy offering MEP design, BIM coordination, energy modelling, and BREEAM/LEED support. Closely comparable in scope (MEP + sustainability), client base (developers, architects, contractors), and project profile (commercial offices, mixed-use, heritage).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/QuinnRoss
• Facebookfacebook.com/quinnrossconsultants
• LinkedInlinkedin.com/company/quinnross-consultants-ltd
• Instagraminstagram.com/quinnross_consultants

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 QuinnRoss Consultants