Water Treatment Australia

What Water Treatment Australia does

Water Treatment Australia Pty Ltd is a privately held Australian engineering firm that designs and constructs water, wastewater, and sewage treatment plants. Established in 1956 and headquartered in Brunswick, Victoria, the company has delivered more than 500 plants across Australia, New Zealand, Papua New Guinea, Fiji, Sri Lanka, and China, serving government water utilities, municipal councils, and select industrial clients. Its customer base includes state utilities such as Hunter Water, Seqwater, Icon Water, Barwon Water, and Goulburn Valley Water, alongside councils and industrial counterparties including Veolia, John Holland, and Dalian Petrochemical. Contracts are typically valued between $1 million and $15 million, with projects delivered on a design-and-construct basis secured through competitive public tendering.

The firm's technology stack spans the conventional water treatment process train — coagulation and flocculation, clarification (including proprietary Reactivator stainless-steel clarifiers), Dissolved Air Flotation (DAF and DAFF integrated within filter cells), dual-media and GAC/BAC filtration, ultrafiltration and submerged membrane systems, UV disinfection, ozonation, chemical dosing, and sludge thickening and dewatering. A distinguishing asset is an in-house archive of over 500 plant designs dating to 1956, which functions as a reusable engineering knowledge base. WTA holds AS/NZS ISO 9001 (Quality), ISO 14001 (Environmental), ISO 45001 (Health & Safety), OHS 18001, and Australian Government Building and Construction WHS Accreditation, qualifying it to bid on federally funded and environmentally regulated infrastructure.

Commercially, WTA operates as a project-based design-build contractor. Revenue is generated from one-off design-and-construct engagements priced per tender, with no public pricing and no recurring software, SaaS, or long-tail service annuity disclosed. The firm maintains three offices (Artarmon in Sydney, plus Notting Hill and Brunswick in Melbourne) to support regional tender response, and runs an enterprise field-sales motion targeting government water authorities and water utilities through competitive tender processes. Headcount sits in the 11-50 range, consistent with a specialist mid-sized engineering firm rather than a scaled platform business.

Name

Water Treatment Australia

Legal name

Water Treatment Australia Pty Ltd

Website

https://wta.net.au

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

11–50 employees

Short description

Water Treatment Australia Pty Ltd is a privately held Australian engineering firm founded in 1956 that designs and constructs water, wastewater, and sewage treatment plants for government water utilities, municipal councils, and industrial clients across Australia and five other countries.

Ownership category

akta.pro rank

Product category

Water and Wastewater Treatment Engineering Services

NAICS

Water, Sewage and Other Systems (2213)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Water Reuse & Reclamation Infrastructure Construction (Recycled Water Systems) (IMAFAGAH)

akta.pro secondary industries

Industrial Wastewater Reuse (Cooling/Process/Boiler Feed) (EUANADAM), Water Reclamation & Reuse Production (Tertiary/Advanced Treatment) (EUANADAD), Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

Keywords

• Water treatment engineering
• Wastewater treatment design
• Sewage treatment plants
• Water infrastructure construction
• Municipal water systems

Headquarters

HQ city

Brunswick

HQ country

Australia

HQ region

Oceania

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Technology or R&D

Revenue model

1. Design and Construction Services: Full project lifecycle from design through construction, installation, and commissioning of water and wastewater treatment plants. Revenue is project-based, typically secured through competitive tendering with government and municipal clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Water Treatment Australia Pty Ltd is a design-build engineering firm that designs and constructs water, wastewater, and sewage treatment plants for government water utilities, municipal councils, and industrial clients. Services span process design, equipment specification and supply, civil and mechanical construction, installation, and commissioning of complete treatment plants, with more than 500 plants delivered since 1956.

Product overview

Water Treatment Australia is an engineering firm specializing in the design and construction of water and wastewater treatment plants. They offer a comprehensive suite of services including plant design, construction, installation, and commissioning. Their core offerings encompass various treatment technologies including DAF/DAFF systems, membrane filtration (UF), media filtration, coagulation/flocculation, clarification, chemical dosing, sludge handling, UV disinfection, ozonation, pump stations, and specialized leachate treatment. The company operates a portfolio of treatment plant projects across Australia and internationally, with technologies applied to both municipal and industrial water treatment applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Municipal Water Treatment Plant Design and Construction Turnkey design-build engineering, procurement, construction, and commissioning of municipal water treatment plants for councils and water authorities, covering intake treatment, clarification, filtration, and disinfection.
• Wastewater and Sewage Treatment Plant Design and Construction Turnkey design-build of wastewater and sewage treatment plants, including biological, DAF/DAFF, membrane filtration, UV, and ozonation process trains, delivered to government utilities and industrial clients.
• Landfill Leachate Treatment Plant Design and Construction Design and construction of dedicated landfill leachate treatment plants incorporating membrane filtration, biological treatment, and reverse osmosis to meet regulatory discharge and reuse standards.
• Remote-Site Industrial Water and Sewage Treatment Plant Design and Construction Design and construction of packaged water and sewage treatment plants for remote industrial sites, mining camps, and similar facilities outside municipal coverage.

Named customers17 records

Segments1 record

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

Four partnerships are on record, tiered core and minor.

• John HollandcoreImplementation/ SI/ Consulting PartnerJohn Holland is a major Australian engineering and infrastructure company. WTA partners with John Holland on the Farley Sewage Treatment Plant Upgrade project for Hunter Water, combining WTA's water treatment expertise with John Holland's construction capabilities.
• WherlecoreStrategic or Co-development PartnerWTA partnered with Wherle to design and construct the Woodlawn Leachate Treatment Plant for Veolia, combining engineering expertise for bioreactor landfill leachate treatment solutions.
• Suncoast AllianceminorStrategic or Co-development PartnerPartnership on the Caddadup, Halls Head, Gordon Rd & Kwinana Waste Water Treatment Plant project in Western Australia.
• OutakumpuminorStrategic or Co-development PartnerPartnership on the Ampara/Sri Lanka Water Treatment Plant project involving alum sludge dewatering.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Jacobs: Global engineering services major with a sizable water practice providing design, program management, and construction oversight for treatment infrastructure. Bids against WTA on Australian municipal water programs.
• AECOM: Global infrastructure consulting firm with a major water practice offering planning, design, and construction services for water and wastewater treatment. Bids against WTA on Australian municipal tenders, particularly for larger programs.
• Black & Veatch: Global EPC firm specializing in water and wastewater treatment plant design and construction. Competes for large Australian municipal and industrial water tenders with deeper engineering bench and international delivery experience.
• Veolia Water Technologies: Global water and wastewater treatment design-build major with significant Australian operations. Both a WTA customer (Woodlawn Leachate Plant) and a competitor, offering far broader geographic reach and capital resources across municipal and industrial water markets.
• Suez Water Technologies & Solutions: Global water infrastructure major with strong presence in Australian municipal tenders. Competes with WTA on wastewater and reuse plant design-build, with materially larger R&D and balance-sheet capacity.
• Stantec: Global engineering consultancy with a strong water practice spanning treatment plant design, program management, and environmental services. Competes with WTA on Australian and New Zealand municipal water infrastructure.

Direct peers

• Downer Group (Utilities): ASX-listed Australian infrastructure services group with a significant utilities and water infrastructure capability. Competes with WTA on regional water and wastewater design-build tenders across Australia and New Zealand.
• Trility (Beca Group): Australian-headquartered water and wastewater infrastructure design-build specialist, now part of Beca Group. Competes directly with WTA for municipal and industrial water treatment plant tenders across Australia and New Zealand with comparable scale and capabilities.
• Interflow: Australian-headquartered specialist in water and wastewater infrastructure, including pipeline rehabilitation, pump stations, and treatment plant work. Comparable in scale and customer base to WTA, competing for similar municipal tenders.
• John Holland: Major Australian tier-1 infrastructure contractor with a significant water treatment plant delivery capability. Has partnered with WTA on the Farley STP Upgrade for Hunter Water, but also competes independently for the same municipal water tenders.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/water-treatment-australia-pty-ltd

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

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 Water Treatment Australia