What Trility does

TRILITY Group Pty Ltd is an Australian-founded, privately held water and environmental services company headquartered in Adelaide, operating across Australia and New Zealand since 1991. The company delivers full-lifecycle water and wastewater services through long-term Operations & Maintenance (O&M), Design-Build-Operate-Maintain (DBOM), and Public-Private Partnership (PPP) contracts with state water utilities, local councils, and government agencies. Its technology stack spans membrane filtration, ultraviolet disinfection, dissolved air flotation, biological nutrient removal, sequencing batch reactor systems, and proprietary SCADA-integrated process control, supported by an in-house RTO-accredited training function (RTO #46056) and a hardware product catalogue (chemical dosing, gas chlorination, electrochlorination, instrumentation) sourced through partnerships with Grundfos, Evoqua/Wallace & Tiernan, Xylem, GF Piping Systems, and others.

TRILITY's revenue model is dominated by multi-decade managed services contracts (10–37 years), exemplified by flagship assets such as the Adelaide Desalination Plant (~$1.83b total project value, JV with SA Water until 2033), the Mundaring Water Treatment Plant (165 ML/d, 37-year PPP via Helena Water consortium), the Yan Yean plant (155 ML/d, 25-year contract with Melbourne Water), and the Wentworth to Broken Hill Pipeline ($467M). A wholly owned subsidiary, TopAq, operates the Eastern Irrigation Scheme delivering Class A recycled water through a 60km pipeline to 80 customers. The company maintains a workforce of 251–500 across regional offices in Australia and New Zealand, with new services offices opened in the Northern Territory in 2024 and a New Zealand expansion via the 2025 Central Otago District Council contract covering 15 treatment plants. In December 2025, TRILITY concluded two long-standing South Australian contracts (Riverland, 26 years; Victor Harbor, 20 years), with operations transferred back to SA Water.

Name

Trility

Legal name

TRILITY Group Pty Ltd

Website

https://trility.com.au

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

251–500 employees

Short description

TRILITY is an Australian and New Zealand water utility services company that designs, builds, operates, and maintains water and wastewater treatment infrastructure for government utilities, councils, and mining clients under long-term DBOM and PPP contracts.

Ownership category

akta.pro rank

Product category

Water and Wastewater Treatment Services

NAICS

Sewage Treatment Facilities (22132), Water Supply and Irrigation Systems (221310)

SIC

Water Supply (4941)

akta.pro primary industry

Rehabilitation & Renewal (CIPP, Lining, Coatings, Structural Repairs) (EUANALAF)

akta.pro secondary industries

Pump & Rotating Equipment Asset Programs (Pumps, Motors, Drives) (EUANALAK), Tailings & Water Management Engineering (TSF Design/Construction, Dams, Water Treatment) (IMAKAOAF)

Keywords

• Water treatment services
• Wastewater treatment operations
• Water recycling solutions
• Design build operate maintain
• Municipal water utility services

Headquarters

HQ city

Adelaide

HQ country

Australia

HQ region

Oceania

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Operations & Maintenance Contracts: Long-term O&M contracts for water and wastewater treatment facilities, providing ongoing revenue through contracted service delivery. Contracts typically span 10-35 years with government utilities and councils.
2. Design, Build, Operate and Maintain (DBOM): Full lifecycle project delivery including design, construction, commissioning, and long-term operation of water treatment infrastructure. Revenue from capital delivery and subsequent operational phases.
3. Public Private Partnership (PPP): TRILITY participates in PPP arrangements for major water infrastructure, financing, designing, constructing, and operating facilities under concession agreements.
4. Water Product Sales: Sales of water treatment products and consumables including chemical dosing equipment, filtration systems, instrumentation, and replacement components through the TRILITY product catalogue.
5. Training Services: Nationally Recognised Training (RTO #46056) delivering Certificate II, III, and IV in Water Industry Operations, plus specialized non-NRT courses for water industry professionals.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

TRILITY is a water and environmental services company that designs, builds, operates and maintains water and wastewater treatment infrastructure under long-term O&M, DBOM and PPP contracts for government utilities and councils across Australia and New Zealand. It complements these managed services with a product catalogue of chemical dosing, chlorination, filtration, instrumentation and UV disinfection equipment, plus RTO-accredited training and water consultancy services. Its wholly owned subsidiary TopAq distributes Class A recycled water through a 60km pipeline to 80 customers.

Product overview

TRILITY is a water and environmental services company offering an extensive range of water treatment products, equipment, and consumables. The product portfolio includes chemical dosing systems (dosing pumps, injection quills, mixers, portable dosing units), gas chlorination equipment (chlorinators, vacuum regulators, injectors, absorption columns, gas leak detectors), electrochlorination systems, filtration products (cartridge filtration, electrodialysis reversal, reverse osmosis), instrumentation (chlorine monitors, pH monitors, turbidity monitors, conductivity meters), and ultraviolet disinfection systems. These products are complemented by components including flow meters, PVC valves, pipe fittings, and calibration cylinders. The company works with brand partners including Grundfos, Evoqua (Wallace and Tiernan), GF Piping Systems, Fischer, ATI, Hydramet, Xylem, Force Flow, and others to deliver water and wastewater treatment solutions.

Differentiator

Problem solved

Functional benefit

Brands

• TopAq: Wholly owned subsidiary of TRILITY Group that owns and operates the Eastern Irrigation Scheme. Delivers Class A recycled water for residential use and food production around Cranbourne, Melbourne.

Products and services

• Water and Wastewater Operations
• Design, Build, Operate and Maintain (DBOM) Project Delivery
• Public-Private Partnership (PPP) Concessions
• TopAq Class A Water Recycling
• Water Industry Training (RTO #46056)
• Water Consultancy Services
• Water Treatment Products Catalogue

Quantifiable outcome

• Maintained 100% compliance with environmental regulations during extreme weather events (Townsville floods, clarifier failures)
• +3 more outcomes

Named customers15 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

Feature4 records

Partnerships

Eight partnerships are on record, tiered core, flagship and minor.

• Central Otago District Council (CODC)coreStrategic or Co-development Partner · 1 July 2025TRILITY was awarded the water services facilities contract with Central Otago District Council covering operations, maintenance and management of 15 water and wastewater treatment plants on the South Island of New Zealand, effective 1 July 2025.
• AdelaideAqua Pty LtdflagshipStrategic or Co-development PartnerTRILITY is a Joint Venture (JV) partner in AdelaideAqua Pty Ltd, the entity with agreement with SA Water to operate and maintain the Adelaide Desalination Plant until 2033. The plant has capacity to deliver up to 300 million litres of water each day.
• Helena Water consortiumcoreStrategic or Co-development PartnerTRILITY, as part of the Helena Water consortium, financed, designed, constructed, commissioned and through a Joint Venture (JV) now operates the Mundaring Water Treatment Plant (165 ML/d) and Mundaring Pump Station C in Western Australia under a 37-year PPP contract.
• John HollandcoreStrategic or Co-development PartnerTRILITY is proud to partner with Sydney Water and John Holland on the Upper South Creek Advanced Water Recycling Centre, one of the most advanced wastewater recycling facilities in the Southern Hemisphere, expected to complete in 2026.
• WaterNSW (W2BH O&M Joint Venture)coreStrategic or Co-development PartnerTRILITY is a Joint Venture (JV) partner in the W2BH O&M which operates and maintains the Wentworth to Broken Hill pipeline - a 250km pipeline, 3 pump stations and bulk water storage delivering 36ML/d.
• Rotorua Lakes Council ConsortiumcoreStrategic or Co-development PartnerTRILITY operates in consortium with Rotorua Lakes Council to deliver wastewater services for the Rotorua district, including operations, maintenance and asset management of wastewater treatment plants, land treatment system, and network maintenance and renewals under a $140M contract over 10 years.
• Kaipara District Council (New Zealand)minorChannel Partner/ Reseller/ DistributorTRILITY operated the Mangawhai Community Wastewater Scheme for Kaipara District Council in New Zealand, providing and maintaining a pristine estuary and marine environment across the coastal community.
• Plenary EnvironmentcoreStrategic or Co-development PartnerTRILITY operates and maintains Australia's largest thermal drying biosolids facility in partnership with Plenary Environment and Barwon Water, servicing the Barwon Water service region with capacity to process 60,000 tonnes of biosolids annually.

Scale indicators12 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Veolia Australia and New Zealand: Veolia's ANZ subsidiary is the dominant global water-and-wastewater services operator in Australia and New Zealand, competing directly with Trility for municipal, industrial, and PPP tenders across the same geography and client base (councils, water utilities, mining customers).
• Jacobs Solutions: Jacobs is a global engineering, operations, and advisory firm with a large water/wastewater practice that delivers O&M, DBOM, and digital-water services to municipal and industrial clients — directly comparable to Trility's full-lifecycle delivery model.
• Stantec: Stantec is a global infrastructure consulting firm with a significant water/wastewater practice delivering planning, design, operations support, and asset management to North American, Australian, and APAC municipal clients — overlapping the consulting/operations half of Trility's service stack.
• Downer Group: Downer is a leading ASX-listed Australian infrastructure services provider with a Utilities business that delivers water and wastewater treatment plant design, build, operate and maintain services — competing with Trility for the same council and utility tenders in Australia and New Zealand.
• GHD Group: GHD is a privately held Australian employee-owned engineering, architecture, and environmental consultancy with one of the largest water practices in ANZ, offering advisory, design, asset management, and operations support — competing with Trility across municipal water and wastewater tenders.
• WSP Global: WSP is a global professional services consultancy with a substantial water/wastewater business in Australia and New Zealand, delivering planning, design, and program management for municipal utilities — comparable to Trility's consultancy and project-delivery offerings.
• Mott MacDonald: Mott MacDonald is a global engineering and development consultancy with deep water/wastewater expertise serving utility and industrial clients worldwide, including Australia and New Zealand — competing in the consultancy and program-management segments that overlap with Trility's water consultancy services.
• Worley Limited: Worley is an ASX-listed Australian engineering services and project delivery company with a water and environment business serving municipal and industrial clients across ANZ — directly comparable to Trility's DBOM and project delivery capabilities.
• Suez Water Technologies & Solutions: Suez operates a global water services business delivering municipal and industrial water/wastewater treatment, recycling, and digital water solutions — competing with Trility in ANZ tenders and serving as a parallel reference set for the DBOM/PPP business model.

Broad incumbents

• Xylem Inc. Xylem is a global water technology leader offering pumps, treatment systems, smart-metering, and services — a broader water-industry incumbent whose products (brands including Evoqua) Trility distributes and whose service business overlaps with Trility's operations and equipment-integration work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/trility-pty-ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Trility