What Wa Limestone does

WA Limestone is a family-owned Western Australian quarrying and civil contracting group operating for over 50 years since its 1973 founding by Italian immigrants Michael and Renzo Della Bona and Peter Zamboni. The company operates 35 quarries across Western Australia, producing more than 6 million tonnes of material annually across 40-plus product types including crushed limestone, granite aggregates, sand, armour rock, and specialty materials. Operations are delivered through a portfolio of wholly-owned subsidiaries: WA Limestone Quarries (core material supply), WA Premix (five concrete batch plants producing 200,000+ m³/yr), WA Bluemetal (Byford granite quarry, the only major private hard-rock quarry in the Perth metro area), WA Limestone Contracting (marine and civil construction), WA Limestone Heavy Haulage (up to 150-tonne capacity fleet), Limestone Building Blocks (1M+ blocks/yr), and the B&F Consolidated Group joint venture (turnkey mining services).

The company's underlying technology and operations span quarrying, drilling, blasting, crushing, screening, concrete batch production, specialised heavy haulage, and end-to-end marine and civil construction including breakwater and seawall delivery with GPS survey control. The Byford granite quarry has an estimated 100+ year reserve life, and Pilbara operations now comprise five hard-rock quarries. The group is ISO 9001, 14001, and 45001 certified and holds Australian Government Building and Construction WHS Accreditation.

WA Limestone makes money through quote-based, project-by-project sales of materials, concrete, blocks, and contracting services to four primary customer segments: state and local government (Main Roads WA, Department of Defence, City of Joondalup, City of Rockingham, City of Broome), construction contractors, the resources and mining sector (BHP, Chevron, Mineral Resources), and residential/commercial builders plus the general public. Recent major contracts include Ocean Reef Marina ($80M, completed 2023), Tonkin Gap Alliance ($600M project), Bunbury Waterfront ($70M, awarded Nov 2024), and the Onslow Iron Project (largest North-West contract). Pricing is quote-based on a per-tonne, per-cubic-metre, or per-project basis with standard 30-day payment terms. The company is privately held by the founding Della Bona family with no external equity backing, and financial figures are not publicly disclosed.

Name

Wa Limestone

Legal name

P.M.R Quarries Pty Ltd

Website

https://walimestone.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

101–250 employees

Short description

WA Limestone is a family-owned Western Australian quarrying and civil contracting group operating 35 quarries that produce over 6 million tonnes of materials annually, serving state and local government, construction contractors, and the resources sector across Perth and the Pilbara.

Ownership category

akta.pro rank

Product category

Quarrying and Civil Contracting

NAICS

Crushed and Broken Limestone Mining and Quarrying (212312), Crushed and Broken Granite Mining and Quarrying (212313), Construction Sand and Gravel Mining (212321), Stone Mining and Quarrying (21231)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400), Cut Stone & Stone Products (3281), Concrete Products, Except Block & Brick (3272)

akta.pro primary industry

Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC)

akta.pro secondary industries

Crushed Stone Quarrying & Processing (IMAKAHAA), Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI)

Keywords

• Quarry materials supply
• Civil contracting services
• Concrete production
• Marine infrastructure construction
• Heavy haulage transport

Headquarters

HQ city

Perth

HQ country

Australia

HQ region

Oceania

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Material Supply (Quarry Products): Supply of over 40 different types of raw materials including crushed limestone, granite, sand, aggregates, and armour rock to contractors, government, and the public. Materials used in seawalls, roads, bridges, property developments, public spaces, and railways.
2. Concrete Supply (WA Premix): Production and supply of concrete mixes from five strategically located batch plants across Perth, producing more than 200,000 cubic metres of concrete annually. Includes residential, commercial, and industrial concrete applications.
3. Civil Contracting Services: Large-scale civil infrastructure projects including marine construction, seawalls, breakwaters, earthworks, and public infrastructure development delivered through WA Limestone Contracting division.
4. Heavy Haulage Transport: Specialised transport services with a versatile fleet including 150, 100, 85, and 50-tonne floats, flattops and drop-deck trailers, servicing construction, mining, and infrastructure sectors across Western Australia.
5. Limestone Building Blocks: Manufacturing and supply of reconstituted limestone block products, including the Limestone Building Block line, Archistone collection, and Moore River Natural range. Production of more than 1 million blocks per year.
6. Contract Mining and Crushing (B&F Consolidated Group): Turnkey mining project and services including raw material processing, crushing, screening and bulk handling for the resources sector, spanning the entire mine lifecycle from feasibility through production to closure and remediation.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

WA Limestone is a vertically integrated quarrying and civil contracting company operating 35 quarries across Western Australia, producing over 6 million tonnes of crushed limestone, granite, sand, and aggregates annually. The company manufactures concrete through five batch plants, produces limestone building blocks, and delivers large-scale civil contracting, marine construction (breakwaters, seawalls), heavy haulage transport, and contract mining services to government, contractors, and resources clients.

Product overview

WA Limestone Group is a family-owned Western Australian company operating for over 50 years, offering a diversified portfolio of quarrying and civil contracting products and services. The core offering consists of WA Limestone Quarries (the primary business unit with 35 quarries supplying over 40 types of raw materials and 6 million tonnes annually), complemented by specialized divisions including WA Premix (concrete supply with five batch plants), WA Bluemetal (granite products from Byford quarry), WA Limestone Contracting (civil and marine construction), WA Limestone Heavy Haulage (specialized transport up to 150-tonne capacity), Limestone Building Blocks (reconstituted limestone blocks), and B&F Consolidated Group (contract mining and crushing services). The group serves contractors, state and local government, and the public across road construction, marine infrastructure, mining, and residential/commercial building sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• WA Limestone Quarries Leading supplier of crushed limestone, aggregates, sand, and specialty materials with 35 quarries strategically located across Western Australia, producing more than 6 million tonnes of over 40 different raw material products annually for road construction, concrete production, marine infrastructure, and landscaping applications.
• WA Premix Concrete supply, aggregates, and decorative concrete solutions across the Perth metropolitan area with five strategically located batch plants (Mandurah, Bibra Lake, Neerabup, Bayswater, Cardup) and more than 40 concrete agitator trucks plus mobile batch plants for regional and remote projects, producing more than 200,000 cubic metres of concrete annually for residential, commercial, and industrial customers.
• WA Bluemetal Major supplier of granite products to metropolitan and surrounding country areas of Perth, operating from the Byford granite quarry and producing approximately 1 million tonnes of granite annually for concrete production, aggregate supply, drainage, pipe covering, and breakwater construction.
• WA Limestone Contracting Civil contracting division delivering seawalls, marine infrastructure, breakwaters, earthworks, road construction, and large-scale civil infrastructure projects across Western Australia, with specialised in-house capability including drilling, blasting, rock placement, and GPS survey control for marine construction.
• WA Limestone Heavy Haulage Specialised transport services across Western Australia with a versatile fleet including 150, 100, 85, and 50-tonne floats, flattops and drop-deck trailers, servicing construction, mining, and infrastructure sectors with oversized and heavy load capabilities.
• Limestone Building Blocks Manufacturer of reconstituted limestone block products including the Limestone Building Block line, Archistone collection, and Moore River Natural range, producing more than 1 million blocks per year with manufacturing facilities in Nowergup and GinGin and sales yards at Wangara, Bibra Lake, and Mandurah for DIY enthusiasts through to major construction firms.
• B&F Consolidated Group Turnkey mining project and services provider specialising in operational fleet solutions, material processing, crushing, screening, and bulk handling services for the resources sector, spanning the entire mine lifecycle from feasibility through production to closure and remediation.

Quantifiable outcome

• Over 50 years of successful operation as one of Western Australia's largest privately-owned quarry and contracting companies
• +4 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Jurali (WA) Pty LtdcoreStrategic or Co-development Partner · 1 January 2016Joint venture partnership formed in 2016 with Jurali (WA) Pty Ltd to engage the Pilbara Indigenous community. Jurali enables three Language Groups to pool resources and work collaboratively to procure significant contracting opportunities on their land. WA Limestone takes on technical, commercial and financial risk while Jurali carries out operational requirements.
• Italia Stone GroupcoreStrategic or Co-development Partner · 1 January 1978Long-standing strategic partnership with Italia Stone Group for marine construction projects. First major joint venture was Fremantle Sailing Club Marina in 1978. Most recently collaborating on Bunbury Waterfront Redevelopment ($70M contract, November 2024) and Hillary's Boat Harbour (2km seawall, 800,000 tonnes of limestone core and armour).
• Southern Gateway Alliance (Leighton Contractors, GHD)coreStrategic or Co-development PartnerAlliance partnership for Perth to Bunbury Highway project (2006-2009, $705M). WA Limestone responsible for excavation, haulage and placement of almost 15 million tonnes of raw materials. Project completed 4 months ahead of schedule with Australia's largest highway trucking fleet.
• MRIA Alliance (Main Roads, CPB Contractors, Georgiou Group, GHD, AECOM, BG&E)coreStrategic or Co-development PartnerPartnership for Armadale Road upgrading (2016-2018, $100M). WA Limestone managed pavement supply, installation, and drainage construction. Project completed mid-2020.
• Tonkin Gap Alliance (Georgiou Group, BMD, BG&E, GHD)coreStrategic or Co-development PartnerPartnership for Tonkin Gap Project (2020-2023, $600M). WA Limestone supplied crushed-rock road base, crushed limestone sub-base, concrete and limestone blocks for Guildford Road intersection, Swan River crossing, and Morley-Ellenbrook rail enabling works. Won 2024 CCF WA Earth Award >$150M category.
• Newest Alliance (CPB/Downer JV)minorStrategic or Co-development PartnerPartnership for WA State Government infrastructure project (2022-2023). WA Limestone supplied 100,000 tonnes of 75mm crushed limestone and 50,000 cubic metres of concrete.
• BoskalisminorChannel Partner/ Reseller/ DistributorSupplier of granite core and armour rock to Boskalis for Chevron's Barrow Island Project (2008-2009). Supplied 300,000 tonnes of granite for marine infrastructure including port facilities and breakwaters.
• Thiess ContractorsminorChannel Partner/ Reseller/ DistributorSupplier of 120,000 tonnes of granite armour rock to Thiess Contractors for the Northern Territory Government (Darwin East Arm Port, 2000-2001).
• Mineral ResourcescoreChannel Partner/ Reseller/ DistributorOnslow Iron Project - construction of 150 kilometre private haulage road plus supply of 400,000 tonnes of filter rock and 1.2 million tonnes of crushed road base. Largest contract for WA Limestone's North-West division.

Scale indicators16 records

Recent moves10 records

Expansion highlights5 records

Regional players

• Georgiou Group: Large family-owned civil contractor operating in Western Australia across roads, bridges, and marine infrastructure. Direct bidding competitor on WA Government projects (e.g., Tonkin Gap Alliance alongside WA Limestone).
• GBC Group: Western Australian civil contractor and quarry operator. Comparable regional focus on WA infrastructure and materials supply, overlapping with WA Limestone on smaller-scale projects.

Direct peers

• Boral Limited: Australia's largest integrated construction materials and building products company, producing aggregates, concrete, cement, and asphalt. Directly comparable in product mix (quarry products, premix concrete, civil contracting) but operates nationally and at much larger scale.
• Hanson Construction Materials: Heidelberg Materials subsidiary producing concrete, aggregates, and cement across Australia. Direct competitor in bulk quarry materials and premix concrete supply for infrastructure and commercial projects.
• Adbri Limited: Australian producer of cement, concrete, aggregates, and lime with vertically integrated operations. Closely comparable business model across quarrying, concrete, and construction materials sectors.
• Holcim Australia: Major global aggregates, concrete, and cement producer with significant Australian operations across quarrying and ready-mix concrete. Direct competitor in aggregates supply and concrete production for infrastructure projects.
• Barro Group: Privately held Australian concrete, quarry products, and premix supplier, primarily Victoria-based. Highly comparable as a privately owned, vertically integrated quarry-concrete operator focused on a single regional market.

Broad incumbents

• Downer EDI: ASX-listed infrastructure services group with road construction, asphalt, and quarrying operations across Australia. Comparable in asphalt/aggregate production and large-scale public infrastructure delivery.
• Cement Australia: Joint-venture cement and lime producer (Heidelberg/Conch). Adjacent upstream supplier to WA Limestone's concrete operations and competes indirectly via fly ash and cement supply into the WA construction market.
• CPB Contractors: Major Australian tier-one civil contractor (CIMIC Group) with significant WA infrastructure presence. Competes on large alliance projects and primes tenders where WA Limestone acts as materials supplier.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/walimestone
• LinkedInlinkedin.com/company/wa-limestone

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries7 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 Wa Limestone