Mance Arraj

What Mance Arraj does

Mance Arraj Engineers is a privately held, multidisciplinary engineering consulting firm headquartered in Parramatta, New South Wales, Australia. The firm operates two core service lines: Civil Engineering and Structural Engineering, supported by 18+ Professional Design Specialists. The Civil Engineering division, led by Director Steven Arraj, specializes in stormwater management with over 30 years of industry involvement and holds NSW D&BP Legislation registration for Declared Regulated Design work across Class 2 Civil/Stormwater Engineering projects. Its services include stormwater drainage design, water sensitive urban design (including permeable pavements and rainwater retention systems), on-site stormwater detention (OSD) systems, catchment and floodway analysis, flood impact reports, and civil road designs. The division has received both State and National level design awards for OSD work and consults to the Upper Parramatta River Catchment Trust on stormwater policy and OSD handbook development.

The Structural Engineering division, led by Director Philip Mance, delivers structural design for residential, commercial, and industrial projects including pre-stressed/post-tensioned concrete, reinforced concrete, structural steel, timber, and excavation shoring. The firm is registered under NSW D&BP Legislation for Declared Regulated Design work across Class 2 Structural Engineering projects. Mance Arraj generates revenue through project-based professional service fees billed to property developers, commercial builders, and government authorities across Western Sydney and broader NSW. The go-to-market relies on direct client engagement, a project portfolio, industry awards, and regulatory registrations as primary credibility signals. Marketing is conducted primarily through the company website with no disclosed digital advertising, social media presence, or content marketing program.

Name

Mance Arraj

Legal name

Mance Arraj Engineers

Website

https://maengineers.com.au

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

11–50 employees

Short description

Mance Arraj Engineers is a privately held civil and structural engineering consulting firm in Parramatta, NSW, serving property developers, builders, and government authorities across Western Sydney with award-winning stormwater and structural design services.

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Engineering Services (54133), Engineering Services (541330)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

Keywords

• Civil engineering consulting
• Structural engineering services
• Stormwater drainage design
• Onsite stormwater detention
• Building structure design

Headquarters

HQ city

Parramatta

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional engineering consulting services for Civil Engineering and Structural Engineering projects. Revenue is generated through project-based professional service fees for design work, analysis, and engineering documentation.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Mance Arraj Engineers is a multidisciplinary consulting firm providing Civil Engineering and Structural Engineering design services for residential, commercial, and industrial construction projects. The Civil Engineering division delivers stormwater drainage design, water sensitive urban design, on-site stormwater detention (OSD) systems, and flood studies. The Structural Engineering division provides design for pre-stressed/post-tensioned concrete, reinforced concrete, structural steel, timber structures, and excavation shoring. The firm is registered under NSW D&BP Legislation to undertake Declared Regulated Design work for Class 2 Civil/Stormwater and Structural Engineering projects.

Product overview

Mance Arraj Engineers is a multidisciplinary consulting firm offering two primary service lines: Structural Engineering and Civil Engineering. The Structural Engineering division handles residential, commercial, and industrial projects, providing design for concrete, steel, and timber structures. The Civil Engineering division is award-winning with 30+ years in stormwater management, specializing in on-site stormwater detention (OSD) systems, water sensitive urban design, and flood studies. Both divisions are registered under NSW D&BP Legislation for Declared Regulated Design work. The company employs 18 Professional Design Specialists and is led by directors Philip Mance (Structural) and Steven Arraj (Civil).

Differentiator

Problem solved

Functional benefit

Products and services

• Structural Engineering Services Comprehensive structural engineering design for residential, commercial, and industrial projects, including pre-stressed/post-tensioned concrete, reinforced concrete, structural steel, and timber structures. Delivered to developers and builders in Western Sydney and broader NSW.
• Civil Engineering Services Award-winning civil engineering consulting with over 30 years of involvement in the stormwater industry. Provides stormwater drainage design, water sensitive urban design, on-site stormwater detention (OSD) systems, and flood impact analysis for developers, builders, and government authorities.
• Stormwater Drainage Design Professional stormwater drainage design services for Class 2 Civil/Stormwater Engineering projects, delivered under the firm's NSW D&BP Legislation registration to undertake Declared Regulated Design work.
• Water Sensitive Urban Design Urban design services incorporating water sustainability principles, including permeable pavements, rainwater retention systems, and stormwater treatment devices for property development projects.
• On-site Stormwater Detention (OSD) Systems Design Design and engineering of On-site Stormwater Detention (OSD) systems with award-winning expertise at State and National levels. Includes consulting to the Upper Parramatta River Catchment Trust for OSD Design Handbook development.
• Flood Studies and Flood Impact Reports Comprehensive flood studies and flood impact analysis, including catchment and floodway analysis, prepared by expert civil engineers for development projects.
• Civil Road Designs Engineering design of civil road infrastructure and traffic devices, delivered as consulting services to State and Local Government Authorities.
• Residential Structural Design Structural design services for residential projects ranging from single occupancy dwellings, to three storey developments, and multi-unit high-rise residential projects.
• Commercial and Industrial Structural Design Structural documentation for commercial office buildings, retail buildings, portal frame structures, and concrete tilt-up industrial buildings.
• Excavation Shoring Design Below-ground carpark shoring design for multi-storey residential and commercial buildings, including coordination with other design disciplines to minimize costly changes during construction.

Quantifiable outcome

• State and National level design awards for On-site Stormwater Detention (OSD) Designs

Segments2 records

Ideal customer profiles2 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.

• Upper Parramatta River Catchment Trust (UPRCT)coreStrategic or Co-development Partner · 1 January 2005Steven Arraj served as Consultant to the Upper Parramatta River Catchment Trust for developing the Fourth Edition of their OSD Design Handbook, released January 1, 2005. Mance Arraj Engineers also consults to the Trust on ongoing stormwater management policy development.

Scale indicators3 records

Expansion highlights4 records

Broad incumbents

• Aurecon: Aurecon is a large Australian-headquartered engineering consultancy providing civil, structural, and infrastructure design across transport, water, and property — competing with Mance Arraj on larger Western Sydney infrastructure and masterplan work.
• GHD: GHD is a major Australian employee-owned engineering consultancy delivering civil, structural, water, and environmental design services across property and infrastructure, including stormwater work overlapping with Mance Arraj's portfolio.
• WSP Australia: WSP is a global engineering consultancy with substantial Australian operations delivering civil, structural, water, and property design services, competing with Mance Arraj on mid-to-large NSW infrastructure and developer-led projects.
• Arup: Arup is a global engineering consultancy with major Australian offices delivering structural, civil, and infrastructure design across building and transport sectors, competing for high-profile Western Sydney and Sydney CBD projects.
• SMEC: SMEC is a large Australian infrastructure engineering consultancy active across water, transport, and urban development, providing broader-scope civil and structural capability against which Mance Arraj competes on Western Sydney projects.

Direct peers

• BG&E Consulting Engineers: BG&E is an Australian mid-sized engineering consultancy delivering structural, civil, and building services across residential and commercial developments, mirroring Mance Arraj's integrated civil/structural model and NSW/Western Sydney focus.
• Northrop Consulting Engineers: Northrop is an Australian employee-owned consultancy with strong NSW presence delivering structural and civil engineering for property and infrastructure projects of comparable scope and client type to Mance Arraj.
• Taylor Thomson Whitting (TTW): TTW is an Australian structural and civil engineering consultancy focused on building structures, with similar registered design practitioner credentials and developer/builder client base overlapping with Mance Arraj.
• STP Consultants: STP Consultants is an NSW structural and civil engineering practice focused on building structures for residential and commercial developments, closely comparable in services and project types to Mance Arraj.
• Calibre Consulting Engineers: Calibre is an Australian mid-sized engineering consultancy providing structural and civil design for property and infrastructure, with comparable NSW presence and multi-discipline team size to Mance Arraj.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mance-arraj-engineering-pty-ltd

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Mance Arraj