What McCosker does

McCosker Contracting Pty. Ltd. is an Australian privately held civil construction firm founded in 1995 and headquartered at 19 Morgan Street, Gladstone, Queensland, with regional offices in Brisbane and Mackay. The company delivers bulk earthworks, structural and civil concrete works, HDPE pipeline installation, mining and industrial infrastructure, and specialised residue management services to enterprise clients across the mining (coal, gold, bauxite), alumina refining, LNG/energy, and water utility sectors throughout Queensland and the Northern Territory. Its documented track record includes more than 2,700 completed projects and A$1.3 billion in cumulative contractual revenue to FY ending 30 June 2023, with workforce scaling between 550+ ongoing and a peak of 750+ personnel.

McCosker's most differentiated capability is its in-house designed and manufactured Amphibious Scroller — a screw-propelled amphibious vehicle used for tailings dam mud farming and dewatering — alongside a fleet of more than 550 plant units supported by an 1,800 sq metre purpose-built workshop in Gladstone. The company holds ISO 9001, ISO 14001 and ISO 45001 certifications and Queensland Department of Transport and Main Roads prequalification (TMR Q21141). Notable enterprise projects include the APLNG civil site works JV with Fulton Hogan (226 of 400 site personnel, 3.5M+ cubic metres of earthworks), the Rookwood Weir for Sunwater (2.19 million LTI-free man-hours), and multi-year residue management contracts with Queensland Alumina Limited and Rio Tinto Aluminium Yarwun.

Revenue is generated through project-based contracts awarded via competitive tender and direct negotiation with enterprise and government clients, with services priced per project. The go-to-motion is enterprise field sales pursued through a dedicated estimating function, supported by a workforce development pipeline (apprenticeships, traineeships and graduate programmes) and an in-house plant maintenance capability. The company remains wholly owned and led by founder and Managing Director Bob McCosker OAM, with no external institutional ownership identified in the source material.

Name

McCosker

Legal name

McCosker Contracting Pty. Ltd.

Website

https://mccoskers.com.au

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

101–250 employees

Short description

McCosker Contracting is an Australian private civil construction firm delivering bulk earthworks, structural concrete, HDPE pipelines, mining infrastructure, and proprietary Amphibious Scroller tailings dam services to enterprise mining, energy, alumina, and water utility clients across Queensland and the Northern Territory.

Ownership category

akta.pro rank

Product category

Civil Construction Services

NAICS

Heavy and Civil Engineering Construction (237), Utility System Construction (2371)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Industrial/Process Plant General Contracting (IMAFAAAH)

akta.pro secondary industries

Mine Operations Contracting (Open-Pit & Underground Development, Production, Load/Haul) (IMAKAKAD), Public Works General Contracting (IMAFAAAG)

Keywords

• Civil construction services
• Bulk earthworks contracting
• Tailings dam management
• Mining infrastructure construction
• HDPE pipeline installation

Headquarters

HQ city

Gladstone

HQ country

Australia

HQ region

Oceania

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Civil Construction Services: Project-based contracts for civil construction including bulk earthworks, concrete works, HDPE pipelines, mining infrastructure, and industrial services. Revenue is generated through direct client engagements via competitive tendering and negotiated contracts with major mining, energy, and industrial companies.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

McCosker Contracting delivers large-scale civil construction services for the mining, energy, water infrastructure, and industrial sectors across Queensland and the Northern Territory. Core offerings include bulk and detailed earthworks, specialist civil concrete placement, HDPE pipeline installation, mining and industrial infrastructure, residue management using its proprietary Amphibious Scroller fleet, and broad industrial services. Projects are executed with a vertically integrated plant fleet of 550+ units and a workforce that has scaled to 750+ personnel.

Product overview

McCosker Contracting offers a unified suite of civil construction services organized around six core offerings: Earthworks (bulk and detailed), Civil Concrete (specialist structures), Piping (HDPE pipelines and water infrastructure), Infrastructure (mining, construction, building and industrial), Residue Management (tailings dam operations with proprietary Amphibious Scrollers), and Industrial Services. The services are delivered through a scalable workforce and specialized fleet of over 550 plant units, with the proprietary Amphibious Scrollers representing a unique in-house manufactured product for tailings management. The company operates as a single integrated civil construction firm rather than a modular software platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Earthworks Bulk and detailed earthworks services including excavation, grading, and site preparation for mining, energy, and infrastructure projects throughout Queensland.
• Civil Concrete Specialist concrete structures and high-volume, large-scale concrete placement services for mining, energy, industrial, and commercial sectors.
• Piping HDPE pipeline installation and water infrastructure services including procurement, installation, and dewatering for mining and industrial applications.
• Infrastructure Mining, construction, building and industrial infrastructure including underground utilities (storm water, sewer, electrical, communications), civil pavements, roads and carparks.
• Residue Management Tailings dam infrastructure and mud farming services including supply of in-house designed Amphibious Scrollers and modified LGP Bulldozers for tailings dewatering and consolidation operations.
• Industrial Services Wide range of high-performance industrial infrastructure services delivered to industrial, construction, manufacturing and mining sectors including facility and infrastructure management.
• Amphibious Scrollers In-house designed and built amphibious screw-propelled vehicles used for tailings dam mud farming, dewatering, and consolidation operations in all dam conditions. Operated as a McCosker-built proprietary product; fleet grew to 7 units by 2015 with an 8th unit under construction in current operations.

Quantifiable outcome

• $1.3 billion in contractual revenue
• +3 more outcomes

Named customers14 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• Fulton HogancoreStrategic or Co-development PartnerFully integrated joint venture (FHMJV) formed between McCosker Contracting and Fulton Hogan to perform civil site works (bulk earthworks) on the Australia Pacific LNG (APLNG) development project with Bechtel. McCosker supplied 226 of the 400 personnel on site, completing over 3.5 million cubic meters of earthworks over 18 months.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Sedgman (CIMIC): CIMIC-owned specialist mineral processing and tailings-focused contractor. Comparable in tailings management scope to McCosker's Scroller-led residue management offering, though operates as part of a much larger portfolio.
• Downer EDI: ASX-listed integrated infrastructure and mining services group covering roads, rail, utilities and mining services. Overlaps with McCosker's pipelines, civil infrastructure and resource-sector services at much larger scale and broader portfolio.
• CPB Contractors: CIMIC Group subsidiary and one of Australia's largest Tier-1 civil contractors working across transport, utilities and resources. Substantially larger and more diversified than McCosker but overlaps directly on heavy civil scopes for mining and energy clients in QLD.
• John Holland: CIMIC Group subsidiary delivering major civil, building and infrastructure projects across Australia. Direct overlap on civil infrastructure for resource-sector and water projects, particularly across QLD and northern Australia.

Direct peers

• Macmahon Holdings: ASX-listed mining services and civil construction contractor with deep presence across Australian coal, gold and metals projects. Closely comparable on mining-related civil construction, bulk earthworks and tailings-adjacent work, serving many of the same Tier-1 miners.
• Decmil Group: ASX-listed Australian contractor delivering civil, building and remote accommodation projects across resources, energy and infrastructure. Comparable in scale, Australian footprint and resource-sector client mix, particularly in QLD and remote-area delivery.
• BMD Group: Privately held Australian civil contractor focused on urban development, transport infrastructure and resource-sector projects. Comparable in size, private ownership profile and core civil contracting capabilities to McCosker.
• Fulton Hogan: Australia/NZ-headquartered heavy civil contractor covering roads, infrastructure, and resources-sector earthworks. Direct competitor on earthworks scopes and McCosker's JV partner on the APLNG FHMJV, making it the most directly comparable peer in capability and geography.
• NRW Holdings: ASX-listed civil contracting and mining services group with significant exposure to Australian bulk earthworks, mine infrastructure and tailings work. Overlaps with McCosker on mining infrastructure delivery and resource-sector client base.

Regional players

• BGC Contracting: Australian civil and mining contractor delivering bulk earthworks, civil infrastructure and concrete works to mining and resource clients. Closely comparable in scope and client segment, with sister-company overlap in WA-focused resources projects complementing McCosker's QLD/NT base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/mccoskercontracting
• LinkedInlinkedin.com/company/mccosker-contracting-pty-ltd

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 McCosker