Stacey Agnew Pty Ltd

What Stacey Agnew Pty Ltd does

Stacey Agnew Pty Ltd is an independent mechanical and fire engineering consultancy founded in 2009 and headquartered in Darra, Queensland, Australia. The firm specialises in applied fluid mechanics for tunnel ventilation, fire engineering, and computational fluid dynamics (CFD), serving major underground infrastructure projects across road, rail, busway, cable and wastewater tunnels, as well as adjacent industrial and agricultural ventilation challenges. Core offerings are organised around four pillars — Tunnel Ventilation Services, Fire Engineering, Computational Fluid Dynamics, and Mechanical Engineering — supplemented by specialised services including on-site smoke testing, industrial ventilation, dust and fume control, livestock heat stress management, stack plume modelling, system dynamics and controls, and expert witness work.

The firm's technical stack centres on physics-based CFD backed by 500+ in-house CPU cores, use of EQUA Simulation AB's IDA Tunnel software for thermo-physical airflow simulation in underground networks, and proprietary smoke testing equipment including the SAM (Smoke Aggregate Machine) for vehicle fire simulation with heat release up to 2.5 MW. The directors have authored proprietary research including the Beyer Stacey Brenn (2024) critical velocity equations, which have been adopted into Annex D of the 2026 edition of NFPA 502. A 177 m² in-house eVENT Space facility supports industry seminars and hybrid demonstrations. The firm generates revenue through project-based professional consulting engagements billed to infrastructure owners, contractors (e.g., CPB Contractors, J.F. White, Ghella Abergeldie JV, Salini Impregilo-NRW JV, McConnell Dowell), and government transport authorities, with active delivery in Australia, New Zealand and the United States via direct engagement and sub-consulting to Delve Underground.

Name

Stacey Agnew Pty Ltd

Legal name

Stacey Agnew Pty Ltd

Website

https://staceyagnew.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

Stacey Agnew Pty Ltd is an independent Australian mechanical and fire engineering consultancy, founded in 2009, specialising in tunnel ventilation, fire safety, and computational fluid dynamics for transport, industrial, and agricultural clients across Australia, New Zealand, and the United States.

Ownership category

akta.pro rank

Product category

Engineering Consultancy Services

NAICS

Architectural, Engineering, and Related Services (5413), Testing Laboratories and Services (541380), Environmental Consulting Services (541620)

SIC

Services-Testing Laboratories (8734), Oil & Gas Field Services, Nec (1389)

akta.pro industry

PRIMARYIMAHANAG

Pump & Compressor Packages (Skids, Booster Sets)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Pumps & Compressors (Fluid & Gas Handling)

Keywords

• Tunnel ventilation engineering
• Fire safety engineering
• Computational fluid dynamics
• Smoke testing services
• Mechanical engineering consultancy

Headquarters

HQ city

Darra

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional consulting services for mechanical engineering, tunnel ventilation, fire engineering, and applied fluid mechanics. Revenue generated through project-based consulting engagements for infrastructure owners, contractors, and government agencies.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Stacey Agnew Pty Ltd is an independent mechanical and applied fluid mechanics engineering consultancy providing specialist design, analysis, testing, and advisory services for tunnel ventilation, fire safety, and industrial ventilation projects. Core offerings include tunnel ventilation design, fire engineering, computational fluid dynamics (CFD), and smoke testing, delivered primarily to transport infrastructure owners, contractors, and government agencies across Australia, New Zealand, and the United States.

Product overview

Stacey Agnew Pty Ltd is an independent mechanical and fire engineering consultancy founded in 2009, offering specialist engineering services centred on applied fluid mechanics. The core service portfolio comprises Tunnel Ventilation Services, Fire Engineering, Computational Fluid Dynamics (CFD), and Mechanical Engineering, supported by specialised offerings including Smoke Testing Services, Industrial Ventilation, Dust and Fume Control, Livestock Heat Stress management, Stack Plume Modelling and Dispersion, System Dynamics and Controls, and Expert Witness Services. The company also operates eVENT Space, a 177 m2 multi-purpose event and seminar facility at its Brisbane office. Services are delivered to transport and industrial sectors, primarily in Australia and internationally, with a focus on tunnel ventilation and fire safety for underground infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Tunnel Ventilation Services Design, planning, measurement, and testing services for underground infrastructure including road, rail, cable tunnels, and underground rail and bus stations. Covers aerodynamic and thermodynamic assessments, dynamic simulation of airflow and pollution, smart control system design, and emergency ventilation design.
• Fire Engineering Applying scientific knowledge, mathematics, and engineering to comprehend fire life safety issues and develop solutions including egress assessment, smoke modelling, fire hazard assessment, quantitative and qualitative risk assessment, and independent peer review.
• Computational Fluid Dynamics (CFD) Advanced engineering analysis using CFD to understand and quantify three-dimensional behaviour of gases and liquids in specified environments. Applications include smoke movement in tunnels and stations, pollution dispersion, hazardous gas dispersion, wind studies, and plume dispersion.
• Mechanical Engineering Sound mechanical engineering with a wide range of experience in infrastructure, mining, processing, and petrochemical industries, covering plant and equipment design, materials handling, process plant, and product development.
• Smoke Testing Services On-site smoke testing service generating cold and hot smoke (up to 2.5 MW heat) to visualise flow and demonstrate smoke control capability. Includes bench scale and large scale non-toxic smoke testing, equipment development and instrumentation, and facilities for hot smoke testing in accordance with Australian Standard AS4391.
• Industrial Ventilation Applied fluid mechanics and engineering services for industrial ventilation requiring back-to-fundamentals approaches. Covers occupational air quality, diesel emissions control, hazardous area management, process ventilation, human heat stress, equipment heat management, and mine ventilation.
• Dust and Fume Control Dust and fume control services including mechanical ventilation, dust collection, scrubbing, and fume extraction, with testing of local exhaust ventilation (LEV) systems including airflow measurements and physical capture volume evaluations through bench scale smoke testing.
• Livestock Heat Stress Expertise in livestock heat stress and management including weather statistics, heat tolerance assessment, ventilation, psychrometrics, and modelling of animal susceptibility for live export and agricultural applications.
• Stack Plume Modelling and Dispersion Prediction of stack plume behaviour and the distribution of temperatures, velocities, gases, or particulates using computational fluid dynamics (CFD) analyses for road tunnel ventilation stacks, tunnel portals, power station stacks, and rail tunnel/station vent outlets.
• System Dynamics and Controls Management of system dynamics and control from field measurements and calibration to complex mathematical models, addressing both stochastic and deterministic systems. Applied to road tunnel ventilation control, fan control strategies during fire emergencies, and ventilation of underground spaces.
• Expert Witness Services Mechanical and fire engineering expert witness services supporting legal cases, arbitration, and dispute resolution with impartial factual advice backed by robust engineering experience. Covers mechanical failure analysis, fire cause and spread investigations, ventilation system evaluation, forensic engineering, and animal heat stress.
• eVENT Space A 177 m2 event space for hosting technical discussions, seminars, and demonstrations. Accommodates up to 100 participants with 3.8 m screen, 75 inch 4K interactive flat panel, 12 foot high ceiling, professional audio/visual system, 16-channel mixer, 1200 W speakers, 4-channel HDMI switcher with all-channel recording, and kitchen facilities. Available for hybrid webinars, product demonstrations, and company/project meetings.

Quantifiable outcome

• Critical velocity equations adopted into NFPA 502 (2026) Annex D standard
• +1 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core and minor.

• EQUA Simulation AB (Sweden)coreTechnology or IntegrationStacey Agnew is an industry partner of EQUA Simulation AB of Sweden, using their specialist tunnel ventilation software IDA Tunnel for consulting work. They provide practitioner level support to other IDA Tunnel users. IDA Tunnel simulates thermo-physics of incompressible airflows within underground road or rail tunnel networks including vehicle piston effects, heat loads, smoke movement, and ventilation system controls.
• Delve Underground (USA)minorStrategic or Co-development PartnerPreviously operated Delve Stacey Agnew LLC joint venture (2019-2024) with Delve Underground for US market. Joint venture has been wound up, and Stacey Agnew now operates as sub-consultant to Delve Underground while maintaining independent presence in US market.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Arup: Global multi-disciplinary engineering firm with a recognized fire engineering and tunnel ventilation practice. Competes on larger tunnel programmes where Stacey Agnew operates, often as a JV partner or sub-consultant.
• Stantec: International engineering, architecture, and environmental services firm with tunnel and infrastructure practices. Overlaps with Stacey Agnew on transport infrastructure design and advisory engagements.
• Arcadis: Global design and engineering consultancy with mobility and tunnel infrastructure offerings. Comparable as a broader incumbent that competes for tunnel ventilation and fire engineering scopes on large projects.
• WSP: Global engineering professional services firm with tunnel, transit, and fire engineering capabilities. Competes for ventilation and fire life safety work on major underground infrastructure projects.
• Mott MacDonald: International engineering consultancy with a significant tunnel and underground infrastructure group, including ventilation and fire safety design. Overlaps with Stacey Agnew on rail and road tunnel projects in Australasia and globally.
• AECOM: Large global engineering firm with tunnel, transportation, and fire engineering practices. Provides comparable consulting services on underground infrastructure where Stacey Agnew operates.

Direct peers

• Jensen Hughes: Global fire engineering and code-consulting firm with deep expertise in tunnel, transit, and infrastructure fire/life safety. Closest analogue as a specialist fire engineering consultancy with adjacent tunnel and CFD practices.
• Delve Underground: US-based tunnel engineering consultancy and Stacey Agnew's former JV partner in Delve Stacey Agnew LLC (2019-2024). Currently the firm's US sub-consulting channel, with directly comparable tunnel ventilation and fire engineering expertise.

Regional players

• BG Consulting Engineers: European tunnel and underground infrastructure engineering consultancy with a strong ventilation and fire safety profile. Comparable specialist practice, primarily serving European rather than Australasian projects.

Emerging players

• Exponent: Engineering and scientific consulting firm with fire engineering, thermal/fluid analysis and failure investigation practices. Overlaps with Stacey Agnew on forensic, expert witness, and CFD-driven fire/ventilation analysis.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/stacey-agnew-pty-ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Stacey Agnew Pty Ltd