NJM Design
NJM Design is an Australian multi-disciplinary building services engineering consultancy founded in 2004, providing mechanical, electrical, fire safety, hydraulics, sustainability, vertical transportation, and structural/civil design services to architects, developers, and property owners across Victoria and Queensland.
- Company typePrivate
- Founded2004
- HeadquartersMelbourne, Australia
- Headcount11–50
- GTM typeB2B
- OfferingServices
What NJM Design does
NJM Design is an Australian multi-disciplinary building services engineering consultancy headquartered in Melbourne, founded in 2004 by John Maroulis. The firm delivers design, documentation, and project management across eight in-house engineering disciplines: mechanical, electrical, hydraulics, fire protection, fire safety engineering, environmental sustainable design (ESD)/sustainability, vertical transportation, and — as of March 2026 — structural and civil engineering. It serves architects, property developers, construction firms, and asset owners across commercial, residential, education, healthcare, industrial, retail, community, and energy-sector building projects, with named engagements spanning Ivanhoe Grammar School, Hickory, Empire Properties, Villawood Properties, Porsche Brighton, and Barwon Health.
The firm's technical differentiators sit in advanced fire safety engineering and sustainability modelling. Proprietary capabilities include Computational Fluid Dynamics (CFD) fire modelling for smoke flow and heat-transfer analysis, smoke control system design, energy and daylight modelling using IES for Section J and JV3 compliance, Green Star and NatHERS-accredited sustainability assessment, and specialized fire safety studies for Battery Energy Storage Systems up to 1,600 MWh. DHHS Fire Team accreditation enables healthcare-sector fire safety audits, and ISO 9001 (Quality Management) and ISO 45001 (Occupational Health & Safety) certifications, obtained in 2025, formalize the operational platform. The firm has been recognized through industry awards including a 2025 Australian Good Design Award, Asia Pacific Property Awards (2021, 2023), and a 2022 UDIA Great Place Award.
NJM Design generates revenue through professional-services fee proposals billed on a project basis, with monthly progressive invoicing for engagements exceeding 30 days and 14-day payment terms. The go-to-market is sales-led B2B, with directors personally involved across all project stages. The firm completes over 500 projects annually ranging from small fitouts to engagements exceeding A$50M, and has delivered 8,000+ projects to 1,250+ clients over its history. Operations now span four offices: Melbourne (headquarters), Traralgon (opened March 2024), Geelong (February 2025), and Brisbane (February 2026), reflecting an explicit multi-year geographic expansion into regional Victoria and Queensland under a five-year strategic growth plan. The firm remains founder-owned with no disclosed external investment.
NJM Design firmographics
Firmographics- Name
- NJM Design
- Legal name
- NJM Design Pty Ltd
- Website
- https://njmdesign.com.au
- Company type
- Private
- Founded year
- 2004
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- NJM Design is an Australian multi-disciplinary building services engineering consultancy founded in 2004, providing mechanical, electrical, fire safety, hydraulics, sustainability, vertical transportation, and structural/civil design services to architects, developers, and property owners across Victoria and Queensland.
- Ownership category
- akta.pro rank
NJM Design industry classification
Industry- Product category
- Building Services Engineering Consulting
- NAICS
- Architectural Services (54131), Architectural, Engineering, and Related Services (5413)
- akta.pro primary industry
- Architectural Design Services (BPAHAKAA)
- akta.pro secondary industry
- Building Information Modeling (BIM) & Digital Design Services (BPAHAKAK)
Keywords
Where NJM Design is headquartered
LocationHeadquarters
- HQ city
- Melbourne
- HQ country
- Australia
- HQ region
- Oceania
Offices4 records
Markets served
NJM Design business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Engineering Design Services: Core revenue from providing multi-disciplinary building services engineering design, documentation, and project management. Services include mechanical, electrical, hydraulics, fire protection, fire safety, ESD/sustainability, and vertical transportation engineering.
- Consulting Services: Consulting engineering services billed on a fee proposal basis. Works are invoiced when completed or progressively on a monthly basis for projects extending beyond 30 days. Payment terms are 14 days from invoice.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Project-based fee proposals |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
NJM Design product offering
Product offeringCore offering
NJM Design is a multi-disciplinary building services engineering consultancy that designs, documents, and project-manages engineering systems for buildings. The firm delivers integrated solutions across electrical, mechanical, hydraulics, fire protection, fire safety, ESD/sustainability, vertical transportation, and structural & civil engineering for clients across commercial, residential, education, healthcare, retail, industrial, community, and energy sectors in Australia.
Product overview
NJM Design is a multi-disciplinary building services engineering consultancy offering a unified suite of engineering services. The company provides eight core service offerings: Electrical, ESD (Sustainability), Fire Protection, Fire Safety Engineering, Hydraulics, Mechanical, Structural & Civil, and Vertical Transportation services. These services are offered as an integrated package where the company provides total engineering solutions, combining all building engineering services in-house. The core business focuses on the design, documentation, and project management of multi-disciplined engineering services across commercial, residential, industrial, education, healthcare, and other building sectors.
Differentiator
Problem solved
Functional benefit
Products and services
- Electrical Services Electrical engineering design services for buildings including power distribution, lighting systems, and electrical infrastructure design for commercial, residential, education, healthcare, and industrial projects.
- ESD (Sustainability) Services Environmental Sustainable Design services including energy modelling, Green Star certifications, Section J compliance, BESS assessments, and sustainability reporting for buildings.
- Fire Protection Services Fire protection engineering design including sprinkler systems, hydrant systems, fire pump sets, fire detection systems, and fire hose reels for buildings across all sectors.
- Fire Safety Engineering Services Fire safety engineering including CFD fire modelling, smoke flow analysis, evacuation assessments, fire safety audits, and risk assessments for buildings, including DHHS-accredited healthcare buildings and BESS facilities up to 1,600 MWh.
- Hydraulics Services Hydraulic engineering design including water supply, drainage, and plumbing systems for buildings across commercial, residential, education, healthcare, and industrial projects.
- Mechanical Services Mechanical engineering design including HVAC systems, ventilation, air conditioning, and building climate control systems for buildings across all sectors.
- Structural & Civil Engineering Services Structural and civil engineering design services newly introduced to provide integrated building design solutions alongside the firm's existing building services disciplines.
- Vertical Transportation Services Vertical transportation design including lift and elevator system specification and design services for buildings.
Quantifiable outcome
- Completed over 500 projects annually
- +2 more outcomes
Companies that use NJM Design
Customer profileNamed customers7 records
Segments8 records
Ideal customer profiles3 records
NJM Design technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
NJM Design partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered minor.
- Beyond BlueminorMental health support partnership where NJM Design raises funds through hosting events and initiatives, while promoting Beyond Blue's services within the workplace to support employee mental wellbeing.
- Property Council of AustraliaminorNJM Design's Mechanical Team Leader Raghad Maroulis selected for the Property Council of Australia's 500 Women in Property program, which supports female talent across the property industry.
- PEGS Soccer ClubminorSponsorship partnership for 2025 season directly funding the club's Women's Program, allowing female players to participate for free. Supports grassroots sports and community inclusion.
- Footscray Rangers Football ClubminorSponsorship partnership supporting the inclusive football club's programs including All Abilities program. Aligns with NJM's values of inclusivity, passion, and teamwork.
- Fire Protection Association AustraliaminorCharity partnership participating in FPA Australia's Virtual Golf Charity Competition supporting the Fiona Wood Foundation.
Scale indicators7 records
Recent moves10 records
Expansion highlights5 records
NJM Design competitors and assessment
Company assessmentDirect peers
- Meinhardt Group: International engineering consultancy with strong Australian presence providing building services, ESD, fire engineering, and structural/civil design. Comparable multi-disciplinary offering with broader geographic reach and larger scale.
- Cundall: Global multi-disciplinary engineering consultancy with Australian operations offering mechanical, electrical, fire safety, ESD, and structural engineering. Direct competitor in sustainable building services with strong comparable sustainability credentials.
- ADP Consulting: Australian multi-disciplinary building services engineering consultancy offering mechanical, electrical, hydraulics, fire protection, ESD, and vertical transportation. Direct mid-sized competitor with comparable service breadth and target markets in commercial, residential, healthcare, and education sectors.
- Warren Smith Consulting Engineers: Australian building services engineering firm offering mechanical, electrical, hydraulics, fire protection, ESD, and vertical transportation. Comparable multi-disciplinary service model targeting similar property and construction clients.
- JHA Consulting Engineers: Melbourne-based building services engineering consultancy providing mechanical, electrical, hydraulics, fire protection, and ESD services. Direct head-to-head competitor in the Victorian building services market with similar mid-tier positioning.
- BG&E Engineering: Australia-based engineering consultancy providing building services, structural, civil, and ESD engineering across property and infrastructure. Comparable multi-disciplinary scope and Australian footprint serving similar developer and architect clients.
Broad incumbents
- WSP Australia: Global engineering professional services firm with significant Australian building services and ESD capability. Much larger competitor operating across all sectors including the same property, healthcare, and energy segments.
- Aurecon: Large Australian-headquartered engineering and infrastructure advisory with building services offerings among broader portfolio. Larger, well-capitalised incumbent that competes in the same property and infrastructure projects but at greater scale.
- Arup Australia: Global engineering consultancy with strong Australian building services, fire safety engineering, and sustainability practice. Larger, well-established competitor with overlapping CFD fire modelling and ESD expertise.
Regional players
- Murchison Consulting Engineers: Australian multi-disciplinary building services consultancy with offices in NSW and ACT. Comparable service offering and project types, but geographically concentrated in NSW/ACT rather than Victoria/Queensland.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
NJM Design social profiles
Digital presenceNJM Design compliance and trust
Trust signalCompliance2 records
NJM Design financial estimates
Financial estimateRevenue estimate
Valuation estimate
NJM Design leadership team
Management profileNumber of profiles
Profiles16 records
NJM Design funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
NJM Design M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about NJM Design
What does NJM Design do?
NJM Design is a multi-disciplinary building services engineering consultancy that designs, documents, and project-manages engineering systems for buildings. The firm delivers integrated solutions across electrical, mechanical, hydraulics, fire protection, fire safety, ESD/sustainability, vertical transportation, and structural & civil engineering for clients across commercial, residential, education, healthcare, retail, industrial, community, and energy sectors in Australia.
Is NJM Design a public or private company?
NJM Design is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was NJM Design founded?
NJM Design was founded in 2004. It employs 11 to 50 people.
Where is NJM Design based?
NJM Design is headquartered in Melbourne, Australia, in the Oceania region.
How does NJM Design make money?
Two revenue lines are on record. Engineering Design Services are the primary driver. The others are consulting Services.
Who are NJM Design's main competitors?
Direct peers on record are Meinhardt Group, Cundall, ADP Consulting, Warren Smith Consulting Engineers, JHA Consulting Engineers and BG&E Engineering. Broad incumbents are WSP Australia, Aurecon and Arup Australia. Murchison Consulting Engineers is listed as a regional player.
Does NJM Design have an API?
No public API is recorded for NJM Design.
What industry is NJM Design in?
NJM Design's product category is Building Services Engineering Consulting. Its primary akta.pro industry code is BPAHAKAA, Architectural Design Services, with a secondary code of BPAHAKAK, Building Information Modeling (BIM) & Digital Design Services. Its NAICS code is 54131.