Waternish Engineering
Waternish Engineering is a family and employee-owned Australian design and construction firm specialising exclusively in water and wastewater treatment infrastructure, serving major utilities, regional councils, and resource-sector clients with turnkey design-construct-deliver solutions across South Australia, Victoria, and other states.
- Company typePrivate
- Founded2000
- HeadquartersAdelaide, Australia
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Waternish Engineering does
Waternish Engineering is an Adelaide-headquartered, family and employee-owned design and construction firm specialising exclusively in water and wastewater treatment infrastructure across Australia. The company delivers turnkey solutions covering water and wastewater treatment plants, pump stations, inlet works, clarifier mechanisms, sludge dewatering, and process-mechanical installations, employing in-house engineering, project management, fabrication, construction, and commissioning capabilities supported by a state-of-the-art workshop facility at Lonsdale, South Australia. Notable proprietary technologies include a three-stage odour control system achieving 99.95% H2S removal and membrane de-aeration technology for groundwater reinjection (>98% oxygen removal) that Waternish led developing in Australia for the Santos managed aquifer recharge project. The firm holds ISO 9001, ISO 14001, and ISO 45001 certifications.
Waternish generates revenue through project-based design-construct contracts ranging from AUD $1.4M to AUD $18M per engagement, alongside multi-year framework agreements such as the AUD $10M annual Treatment Plant Improvement Program with Yarra Valley Water (five-year term, extendable to ten) and the AUD $18M Bolivar Priority Works Framework with SA Water. Customers are concentrated in the water-utility segment, including Yarra Valley Water, SA Water, Icon Water, Greater Western Water, and regional councils (Rockhampton, Cassowary Coast), with one oil and gas anchor in Santos. Go-to-market is exclusively direct enterprise sales through competitive tendering and relationship-based business development, with no channel or reseller model employed.
Headcount has grown from two to over 40 employees across two decades under the leadership of Managing Director Simon White, who took over following founder Lynn Fuller's death in 2006. The company has expanded from its South Australian origin into Victoria (permanent base established 2024), Tasmania, ACT, and Queensland. Recent corporate development includes an AUD $10M annual Victorian contract with Yarra Valley Water representing the company's first permanent interstate presence and a material step in its national growth trajectory.
Waternish Engineering firmographics
Firmographics- Name
- Waternish Engineering
- Legal name
- Waternish Constructions Pty Ltd
- Website
- https://waternish.com.au
- Company type
- Private
- Founded year
- 2000
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Waternish Engineering is a family and employee-owned Australian design and construction firm specialising exclusively in water and wastewater treatment infrastructure, serving major utilities, regional councils, and resource-sector clients with turnkey design-construct-deliver solutions across South Australia, Victoria, and other states.
- Ownership category
- akta.pro rank
Waternish Engineering industry classification
Industry- Product category
- Water and Wastewater Treatment Infrastructure Construction
- NAICS
- Water and Sewer Line and Related Structures Construction (237110)
- SIC
- Water, Sewer, Pipeline, Comm & Power Line Construction (1623)
- akta.pro primary industry
- Intake/Outfall & Raw Water Abstraction Works (River/Sea Intakes, Outfalls) (IMAFAGAI)
- akta.pro secondary industries
- Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE), Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)
Keywords
Where Waternish Engineering is headquartered
LocationHeadquarters
- HQ city
- Adelaide
- HQ country
- Australia
- HQ region
- Oceania
Offices2 records
Markets served
Waternish Engineering business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Design and Construction Services: Waternish generates revenue through project-based design and construction contracts for water and wastewater treatment infrastructure. Projects range from small inlet works upgrades to large multi-package frameworks. Revenue is earned on a per-project basis with value typically ranging from $1.4M to $18M per contract. The company has secured a $10M annual contract with Yarra Valley Water.
- Framework Agreements: Long-term framework agreements with utilities such as SA Water delivering multiple packages of work under single negotiated arrangements, providing recurring revenue visibility over multi-year periods.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based contracts ranging from $1.4M to $18M per engagement |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
Waternish Engineering product offering
Product offeringCore offering
Waternish Engineering is a South Australian construction firm that designs and builds turnkey water and wastewater treatment plant infrastructure for large water utilities, regional councils, and construction businesses. The company delivers end-to-end design, fabrication, construction, and commissioning services across pump stations, inlet works, clarifiers, odour control systems, sludge dewatering, chemical dosing, pipework, and membrane de-aeration facilities, with in-house fabrication and a multi-skilled workforce.
Product overview
Waternish Engineering is a South Australian construction and engineering firm that provides turnkey design and construction solutions exclusively for the water industry. The company operates a multi-product portfolio centred on water and wastewater treatment plant infrastructure, offering integrated capabilities across odour control systems, inlet works and screening, pump stations, membrane de-aeration, clarifier mechanisms, sludge dewatering, chemical dosing, and civil/mechanical/electrical construction services. These products are delivered as standalone project solutions or combined within larger framework contracts, serving municipal utilities, regional councils, and construction businesses across Australia. The company maintains approximately 40 staff and has operated for over 20 years from its Lonsdale, South Australia headquarters.
Differentiator
Problem solved
Functional benefit
Products and services
- Water and Wastewater Treatment Plant Infrastructure
- Odour Control Systems
- Inlet Works and Screening Systems
- Pump Station Design and Construction
- Membrane De-Aeration Systems
- Clarifier Mechanisms and PST Systems
- Sludge Dewatering and Handling
- Chemical Dosing and Disinfection Systems
- Civil, Mechanical and Electrical Works
- Pipework and Pipeline Systems
- Safe Access Solutions
- Recycled Water Systems
- Water and Wastewater Process Improvements and Modifications
Quantifiable outcome
- 99.95% H2S removal at 700ppm and 500,000 ou with 8,000m3/hour capacity for Port Adelaide odour control
- +3 more outcomes
Companies that use Waternish Engineering
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles3 records
Waternish Engineering technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Waternish Engineering partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered flagship, core and minor.
- Yarra Valley WaterflagshipWaternish was awarded a five-year contract (extendable to ten years) with Yarra Valley Water, Melbourne's largest retail water utility, for a $10M annual Treatment Plant Improvement Program to upgrade sewage and recycled water treatment plants. This is Waternish's first permanent presence outside South Australia and forms the cornerstone of Victorian expansion. Waternish established a local base in Victoria and recruited locally. Yarra Valley Water services over 2 million people and 61,000+ businesses across 4,000 kilometres.
- SA WatercoreSA Water selected Waternish as a key supplier under the Bolivar WWTP Priority Works Framework, a series of six packages of work valued at $18M. SA Water emphasises working with suppliers to deliver cost-effective solutions in conjunction with operational teams, consultants, and other contractors. The framework approach enables Waternish to provide overarching structure managing safety, design, stakeholders, and resourcing.
- SantoscoreWaternish was contracted by Santos to design, construct and commission a 12MLD membrane de-aeration facility for managed aquifer recharge as part of the GLNG project, delivering over 98% oxygen removal. Waternish led Australian development of this technology.
- Icon WatercoreWaternish delivered four new solids contact clarifier mechanisms to Icon Water's Googong Water Treatment Plant for $11M, improving water quality and capacity for Canberra and Queanbeyan.
- Greater Western WatercoreGreater Western Water engaged Waternish for multiple projects including $4.4M Primary Sedimentation Tank 3 and $2.3M mechanical sludge dewatering at Melton RWP, demonstrating repeat engagement capability.
- Adelaide FestivalminorWaternish is a Corporate Partner of the Adelaide Festival, the arts and cultural showcase of Adelaide's Mad March season. In 2024, Waternish supports Festival Connect providing funding for transport and accommodation for disadvantaged regional students.
- State Theatre Company South AustraliaminorWaternish is a Corporate Partner and 2024 Presenting Partner of State Theatre Company South Australia, the state's flagship theatre company. Partnership includes supporting productions like The Puzzle by David Williamson.
Scale indicators6 records
Recent moves7 records
Expansion highlights5 records
Waternish Engineering competitors and assessment
Company assessmentBroad incumbents
- Service Stream: ASX-listed Australian infrastructure services company with significant water and utility network exposure (pump stations, pipelines, treatment assets). Larger balance sheet and broader scope, but directly competitive on water utility tenders.
- Fulton Hogan Australia: Trans-Tasman infrastructure contractor with significant Australian water/wastewater treatment and pipeline delivery capability. Larger incumbent competing for the same utility framework work as Waternish.
- Downer Group: Large ASX-listed Australian infrastructure services group with a dedicated Water Services business covering treatment plants, pump stations and networks. Competes with Waternish on the same utility tenders but at far greater scale and balance-sheet strength.
- Ventia Utility Services: Large Australian infrastructure services provider with water and wastewater operations and maintenance scope plus capital delivery. Competes for utility water contracts with greater scale and an integrated O&M/capex model.
- John Holland (CPB Contractors): Major Australian infrastructure EPC contractor (CIMIC group) with extensive water and wastewater treatment plant delivery capability. Competes for the same large-scale utility projects but at materially greater scale and capacity than Waternish.
Direct peers
- Interflow: Australian specialist pipeline rehabilitation and water infrastructure contractor, including trenchless technology and water/sewer network works. Comparable scope and customer base (utilities and councils) at similar mid-sized scale to Waternish.
- Suez Advanced Solutions Australia: Global water services group operating in Australia with water and wastewater treatment engineering, construction and operations offerings to municipal utilities. Direct competitor on technical water-treatment bids with broader geographic footprint.
- Abergeldie Water Infrastructure: Australian specialist water and wastewater infrastructure contractor delivering design-construct solutions for utilities and councils. Closest direct peer to Waternish given similar scope (treatment plants, pump stations, pipelines), customer segment (utilities/councils), and mid-sized Australian footprint.
- Diona (Downer Group): Australian specialist water, sewer and gas infrastructure contractor (now part of Downer Group). Direct comparable on scope (water/sewer networks, pump stations, treatment upgrades) and customer base (utilities and councils).
- Pensar Infrastructure: Australian specialist infrastructure contractor delivering water, electrical and structural projects for utilities and councils. Similar mid-sized delivery model, scope (water/wastewater treatment and pump stations) and customer segment to Waternish.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Waternish Engineering social profiles
Digital presenceWaternish Engineering compliance and trust
Trust signalCompliance3 records
Waternish Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
Waternish Engineering leadership team
Management profileNumber of profiles
Profiles8 records
Waternish Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Waternish Engineering M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Waternish Engineering
What does Waternish Engineering do?
Waternish Engineering is a South Australian construction firm that designs and builds turnkey water and wastewater treatment plant infrastructure for large water utilities, regional councils, and construction businesses. The company delivers end-to-end design, fabrication, construction, and commissioning services across pump stations, inlet works, clarifiers, odour control systems, sludge dewatering, chemical dosing, pipework, and membrane de-aeration facilities, with in-house fabrication and a multi-skilled workforce.
Is Waternish Engineering a public or private company?
Waternish Engineering is a private company. It is classified as family owned and is currently operating.
When was Waternish Engineering founded?
Waternish Engineering was founded in 2000. It employs 11 to 50 people.
Where is Waternish Engineering based?
Waternish Engineering is headquartered in Adelaide, Australia, in the Oceania region.
How does Waternish Engineering make money?
Two revenue lines are on record. Design and Construction Services are the primary driver. The others are framework Agreements.
Who are Waternish Engineering's main competitors?
Broad incumbents on record are Service Stream, Fulton Hogan Australia, Downer Group, Ventia Utility Services and John Holland (CPB Contractors). Direct peers are Interflow, Suez Advanced Solutions Australia, Abergeldie Water Infrastructure, Diona (Downer Group) and Pensar Infrastructure.
Does Waternish Engineering have an API?
No public API is recorded for Waternish Engineering.
What industry is Waternish Engineering in?
Waternish Engineering's product category is Water and Wastewater Treatment Infrastructure Construction. Its primary akta.pro industry code is IMAFAGAI, Intake/Outfall & Raw Water Abstraction Works (River/Sea Intakes, Outfalls), with a secondary code of IMAFAGAE, Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels). Its NAICS code is 237110 and its SIC code is 1623.