GDM

Name

GDM

Legal name

GDM Investment Holdings Limited

Website

https://gdmgroup.co.uk

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Building Services Design / MEP Engineering Consulting

NAICS

Other Specialized Design Services (54149)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industry

Residential General Contracting (New Build) (IMAFAAAB)

Keywords

• Building services design
• MEP engineering consulting
• Sustainability consulting
• Energy consulting services
• Facilities management

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. MEP Design Consultancy Services: Professional consultancy services providing mechanical, electrical, and public health engineering design for building projects. Services range from due diligence and conditional reporting to new-build and extensive refurbishment projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

GDM is a multi-disciplined building services design consultancy that delivers Mechanical, Electrical, and Public Health (MEP) engineering design solutions along with Sustainability and Energy consulting for new-build and refurbishment projects. The firm also provides post-completion facilities management support, covering projects from due diligence and acquisition surveys through to ongoing building maintenance. It serves clients across commercial, residential, education, retail, mixed-use, data centre, and hotel/leisure sectors in the UK and overseas.

Product overview

GDM is a multi-disciplined building services design consultancy offering MEP (Mechanical, Electrical, Public Health) engineering design solutions, Sustainability & Energy consulting, and Facilities Management support. The company operates across Commercial, Residential, Education, Retail, and Mixed-Use sectors, providing technical design solutions from initial concept through to post-completion facilities management. Their service portfolio encompasses MEP Services as the core engineering offering, Sustainability & Energy Consulting for environmental performance optimization, and Facilities Management Support for ongoing building maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• MEP Services Mechanical, Electrical, and Public Health engineering design solutions for buildings, providing technical design, systems coordination, and installation oversight for MEP infrastructure across new-build and refurbishment projects.
• Sustainability & Energy Consulting Sustainability and energy consulting services including building modelling, energy simulations, and planning support to enhance environmental performance and help clients achieve certifications such as BREEAM and Wired Score.
• Facilities Management Support Post-completion facilities logistical support and maintenance services to maintain building systems after MEP design and installation, provided to clients on an ongoing basis.

Quantifiable outcome

• 69% reduction in regulated carbon emissions achieved on Anglo American/DeBeers project (based on Part L calculations)
• +2 more outcomes

Named customers8 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• BioLumicminorStrategic or Co-development Partner · 9 December 2025GDM is collaborating with BioLumic for regional testing and validation of their light-activated seed trait platform in South America. The initiative involves evaluations in Chile and Brazil with plans for broader Latin America deployment targeting future crops like soybean and ryegrass. This represents GDM's involvement in agricultural biotechnology sector expansion.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with UK MEP and sustainability services — broader and larger than GDM, but competes for the same enterprise-grade building services commissions in London.
• Arup: Global engineering consultancy with a strong UK MEP and sustainability building design practice; significantly larger and more diversified than GDM, but competes on the same high-end commercial and sustainability-led briefs.
• Sweco: European engineering consultancy with UK presence in building services and sustainable design — competes with GDM on commercial, residential, and mixed-use projects across the UK market.
• WSP: Global engineering professional services firm with substantial UK MEP and building services practice; broader portfolio and geographic reach than GDM but directly competes on commercial and mixed-use design commissions.
• Mott MacDonald: Global engineering, management, and development consultancy with a UK building services design capability — competes with GDM on commercial, education, and infrastructure-adjacent real estate projects.

Direct peers

• Hoare Lea: UK-based MEP engineering design consultancy with deep sustainability expertise, serving commercial, residential, education, and healthcare sectors — a direct competitor to GDM in the same London market and service lines.
• Atelier Ten: Engineering design consultancy specializing in MEP, sustainability, and building physics for high-performance projects — a like-for-like competitor on complex, sustainability-led developments like GDM's BREEAM-Excellent portfolio.
• Cundall: Multi-disciplinary engineering consultancy with strong MEP and sustainability practices across UK, Europe, and Asia-Pacific — overlapping directly with GDM on building services design for commercial and data centre sectors.
• Hilson Moran: London-headquartered MEP and sustainability engineering consultancy serving commercial real estate, education, and mixed-use developments — directly comparable to GDM in scale, scope, and client base.
• BDP (Building Design Partnership): Major UK integrated design practice combining architecture with MEP and sustainability engineering — competes with GDM on large commercial, education, and mixed-use schemes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/wearegdm
• Xx.com/WeareGDM

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries1 record

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 GDM