What NDY Group does

NDY Group, founded in 1959 in Melbourne by David Norman as Norman Disney & Young, is a multidisciplinary building services engineering consultancy now operating as a wholly-owned subsidiary of Tetra Tech. The firm delivers mechanical, electrical, hydraulic, fire, vertical transportation, ICT, security, acoustics, sustainability and structural engineering services for buildings and public spaces, alongside specialist disciplines such as data centre design, sports venue engineering, lighting design (via sub-brand NDYLIGHT) and independent commissioning management (via sub-brand ECS). NDY employs between 501 and 1,000 staff across offices in seven Australian cities, two New Zealand locations, London, Dublin and Vancouver, with project delivery extending further into Asia and the Middle East.

NDY generates revenue through professional services engagements billed on a project basis to architects, asset owners, contractors, developers and government agencies. Go-to-market is enterprise field sales: pursuits are won through technical credibility, marquee project references (Australian Open, AFL Grand Final, Perth Stadium, Rod Laver Arena, SoFi Stadium, CSL Seqirus Project Banksia), and the firm's depth across more than 35 service lines. The company is positioned at the intersection of sustainability consulting, digital and BIM engineering, and high-performance building design, supported by certifications including WELL Enterprise Provider status, Green Star, NABERS, and Climate Active carbon neutral certification. As a subsidiary within Tetra Tech's High Performance Buildings Group, NDY accesses a global network of 30,000 employees and more than 450 offices.

Name

NDY Group

Legal name

NDY

Website

https://ndy.com

Company type

Private

Founded year

1959

Operating status

Operating

Headcount range

501–1,000 employees

Short description

NDY Group is a Melbourne-headquartered building services engineering consultancy, founded in 1959 and operating as a subsidiary of Tetra Tech. It delivers mechanical, electrical, fire, sustainability and specialist engineering services across Australia, New Zealand, the UK, Ireland and Canada.

Ownership category

akta.pro rank

Headquarters

HQ city

Melbourne

HQ country

Australia

HQ region

Oceania

Offices12 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional consulting services for building services engineering across multiple disciplines including mechanical, electrical, hydraulics, fire, sustainability, and specialist engineering

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

NDY Group is a consulting engineering firm that provides multidisciplinary building services engineering and advisory services for buildings and public spaces. The firm designs the invisible systems that make buildings work — including mechanical, electrical, hydraulic, fire, vertical transportation, ICT, security, and controls — alongside specialist disciplines such as acoustics, audio-visual, lighting, sustainability, and structural engineering. It services operate across the full asset lifecycle from feasibility and design through commissioning, decarbonisation, and asset performance optimisation.

Product overview

NDY Group is an engineering and advisory services firm providing multidisciplinary consulting for buildings and public spaces. The company offers comprehensive building services engineering—the invisible systems that make spaces work—including mechanical, electrical, hydraulic, fire, vertical transportation, ICT, security, and controls disciplines. The service portfolio spans 35+ specialized consulting areas including acoustics, audio-visual, BIM, BMS, decarbonisation, digital engineering, fire engineering, sustainability, and smart building consulting. NDY operates two sub-brands: Engineering Commissioning Services (ECS), an independent commissioning management company, and NDYLIGHT, a specialist lighting and visual services group. The company is part of Tetra Tech and delivers projects across Australia, New Zealand, Europe, and North America.

Differentiator

Problem solved

Functional benefit

Products and services

• Mechanical Engineering Consulting Design of HVAC, smoke control and thermal comfort systems for buildings and infrastructure, serving enterprise and government clients across NDY's sectors.
• Electrical Engineering Consulting Design of power distribution, lighting and backup power systems for buildings, including high-voltage engineering for specialised power infrastructure.
• Hydraulic Engineering Consulting Design of water, waste and gas systems for buildings and sites.
• Fire Engineering Consulting Development of fire safety strategies using performance-based analysis.
• Fire Protection Consulting Design of fire protection systems that deliver fire safety strategies.
• Vertical Transportation Consulting Analyse lift and escalator demand and design movement solutions for buildings.
• Structural Engineering Consulting Develop building structural systems and coordinate with architectural designs.
• Civil Engineering Consulting Provide site infrastructure design including roads, drainage, and utility coordination.
• Acoustic Consulting Acoustic engineering services including sound and vibration management for buildings and infrastructure.
• Audio-Visual Consulting Design AV systems for buildings including AV over IP solutions.
• Lighting Design Consulting Lighting designers create visual environments combining aesthetics with technical performance.
• ICT Consulting Design digital infrastructure including structured cabling, networks, and wi-fi for buildings.
• Security Consulting Plan electronic protection including access control, CCTV, and intrusion detection for buildings.
• Sustainability Consulting Whole-of-life sustainability strategy and data-driven design solutions for building projects.
• Green Star Consulting Consulting supporting achievement of Green Star sustainability ratings from the Green Building Council of Australia.
• NABERS Roadmap NABERS energy rating guidance helping buildings achieve sustainability performance targets.
• WELL Building Standard Consulting WELL certification consulting supporting health and wellbeing building performance standards.
• GRESB Reporting GRESB reporting services supporting real estate sustainability assessments.
• Sustainability Certification Services Certification services supporting buildings in achieving sustainability ratings including Green Star and LEED.
• Decarbonisation Services Decarbonisation consulting helps reduce carbon emissions and support net-zero building objectives.
• Electrification Services Electrification consulting supports transition from fossil fuels to electric systems.
• Battery Energy Storage Systems (BESS) Design and integration of battery energy storage systems for buildings and facilities.
• Data Centre Engineering Specialised high-performance data centre design focused on operational efficiency, NABERS ratings, cooling architecture, electrical distribution, and waste heat recovery for enterprise data centre clients.
• BIM Consulting Building Information Modeling (BIM) consultants provide digital engineering modelling services.
• Digital Services Digital engineering services including BIM coordination, digital twins, and data analytics for building operations.
• Smart Building Consulting Smart building consultants define integration strategies for sensors, data, and automated systems.
• BMS Consulting Building Management System consultants design systems that monitor and control HVAC and other building services.
• Building Controls Consulting Building controls consultants design automation and control systems for building operations.
• Computational Fluid Dynamics CFD analysis services simulate airflow and thermal performance in building designs.
• Parametric Modelling Parametric modeling services use computational design to optimize building performance.
• Asset Performance Asset performance services help optimize building system efficiency and longevity through monitoring and analysis.
• Modular Buildings & Prefabrication Services supporting prefabricated and modular construction approaches.
• Interiors Engineering Design Interiors engineering design services for building fitouts and interior spaces.
• High-Voltage Engineering High-voltage engineering services for buildings requiring specialized power infrastructure.
• Engineering Commissioning Services (ECS) Independent commissioning management company that manages the commissioning process to deliver fully functioning and operational facilities across the built environment, including data centres, stadiums, hospitals, train stations, wind farms and solar parks.
• NDYLIGHT Global specialist group within NDY delivering visually striking, sustainable and bespoke lighting solutions through independent lighting and visual specialists with extensive local and global experience.
• Independent Commissioning Agents Independent commissioning agents verify building systems perform as designed through structured testing.

Quantifiable outcome

• First existing building in Australia to achieve WELL Certification at Platinum level - 500 Collins Street Melbourne
• +1 more outcomes

Named customers14 records

Segments22 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered flagship and core.

• Tetra TechflagshipStrategic or Co-development PartnerNDY is part of Tetra Tech, a global leader in water, environment, and sustainable infrastructure providing 30,000 employees and 450+ offices worldwide. Tetra Tech provides integrated services and access to global specialists including engineers, commissioning agents, architects, and energy analysts.
• Engineering Commissioning Services (ECS)coreStrategic or Co-development PartnerECS is an independent commissioning management company and part of both NDY and Tetra Tech. Acts as client advocate managing commissioning process to deliver fully functioning facilities across data centres, stadiums, hospitals, and other built environment assets.
• NDYLIGHTcoreStrategic or Co-development PartnerNDYLIGHT is a global specialist group within NDY bringing together independent lighting and visual specialists with extensive local and global experience. Delivers visually striking, sustainable and bespoke lighting solutions.
• Robert Bird GroupcoreStrategic or Co-development PartnerJoint capability statement partnership for Brisbane 2032 Olympic venue delivery. Robert Bird Group provides structural engineering expertise complementing NDY's building services.
• GlumaccoreStrategic or Co-development PartnerTetra Tech colleague company contributing to global project delivery including US$2.6B SoFi Stadium project. Glumac brings additional engineering expertise to landmark projects.
• Tetra Tech High Performance Buildings GroupcoreStrategic or Co-development PartnerPortfolio of completed projects including SoFi Stadium (home to LA Rams and Chargers). Partnership allows access to best global expertise for landmark projects.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Hoare Lea: UK-headquartered building services engineering consultancy. Hoare Lea is explicitly named as part of Tetra Tech's High Performance Buildings Group alongside NDY, with directly comparable mechanical, electrical, sustainability and acoustics disciplines and similar high-profile venue/cultural project portfolios.
• Aurecon: Australia/ANZ-headquartered engineering and infrastructure advisory firm with comparable building services, sustainability, and major venue capabilities. Aurecon directly competes with NDY across Australian commercial, sports, healthcare and government projects and shares the ANZ-centric geographic footprint.
• Cundall: Global multi-disciplinary engineering consultancy focused on building services, sustainability and structural engineering. Cundall directly competes with NDY in building services MEP design, sustainability consulting (Green Star/LEED/WELL), and data centre engineering across UK, Australia and Asia.
• Glumac: US-based MEP and sustainability engineering consultancy, part of Tetra Tech's High Performance Buildings Group alongside NDY. Glumac contributed to the US$2.6B SoFi Stadium project and shares NDY's building services and sustainability consulting model, though focused on the US market.

Broad incumbents

• WSP: Global professional services firm with a major buildings practice including MEP, structural, sustainability and vertical transportation. WSP competes with NDY across most commercial, healthcare and government engagements, though as part of a much larger portfolio spanning transport, environment and property.
• AECOM: Global infrastructure consulting firm with significant building engineering capability. AECOM competes with NDY on stadiums, transport hubs and large institutional buildings in Australia and globally, operating as part of a much broader design and program management portfolio.
• Arup: Global engineering and design firm with deep building services, structural, sustainability and acoustics practices. Arup is a recognised peer in stadium and Olympic-class venue engineering (e.g., Sydney 2000 venues) and competes with NDY across major ANZ projects.
• Arcadis: Global design and consultancy firm with buildings, sustainability and advisory practices. Arcadis competes with NDY on Australian commercial real estate, healthcare and government projects as part of a broader portfolio that includes water, environment and mobility.
• Jacobs: Global professional services firm with critical facilities, buildings and advisory capabilities. Jacobs competes with NDY in mission critical facilities (data centres, healthcare) and major government infrastructure across ANZ and globally.
• Mott MacDonald: Global engineering, management and development consultancy with significant buildings and advisory practices. Mott MacDonald competes with NDY across commercial, healthcare, education and stadium projects in ANZ and globally as part of its broader infrastructure portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/ndygroup
• Facebookfacebook.com/ndygroup

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about NDY Group