South East Water

What South East Water does

South East Water Corporation is a Victorian government-owned water utility established under the Water Act 1989 (Vic), operating as a regulated monopoly within a defined service territory across Melbourne's south-east and parts of regional Victoria. The company provides reticulated potable water, sewerage collection and treatment (including biogas capture and combined heat and power at wastewater facilities), trade waste management, recycled water services, and developer/builder connection services to nearly 2 million residential, commercial and industrial customers. It is governed by an Essential Services Commission-approved pricing framework with annual bill adjustments and reports against multiple ISO standards (9001, 14001, 22000, 55001, 37301) alongside the legally binding Water Sector Emissions Transition Plan toward net-zero by 2035.

The company's core technology stack centres on large-scale water and wastewater treatment infrastructure complemented by Australia's largest smart water meter programme: a 1 million unit rollout of Huizhong SCL61H-100 ultrasonic meters with proprietary vibration sensors, supplied via Avnet, enabling near real-time usage telemetry, network leak detection and abnormal-usage identification. Customer-facing digital infrastructure comprises the mySouthEastWater self-service portal, the PropertyConnect developer portal, the Wastelog trade waste portal, and the SEW Chat AI-powered chatbot that uses enterprise NLP for call summarisation, case classification and routine enquiry handling. Operational investments include the AUD 113.2 million Western Port Recycled Water Scheme (delivering up to 4,000 ML of Class A recycled water annually to Cardinia Shire farmers), mobile chlorine dosing trailers, and direct methane/nitrous oxide emissions monitoring at Mt Martha and Lang Lang plants.

Revenue is generated through five primary streams: usage-based potable water supply charges, fixed and usage-based sewerage services, transaction-fee trade waste charges, developer connection fees, and pass-through Parks Victoria and waterways/drainage charges. Pricing is regulated by the Essential Services Commission with annual adjustments (2026-27 bills rising 7% in Melbourne and 5% regional, with concession discounts of up to AUD 372.10). Customer segmentation is horizontal across residential, business/commercial, and developer/builders, with no private-sector competitors permitted inside the regulated territory. A wholly-owned subsidiary, Iota Services Pty Ltd, supports water-related operations.

Name

South East Water

Legal name

South East Water

Website

https://southeastwater.com.au

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

501–1,000 employees

Short description

South East Water is a Victorian government-owned water utility monopoly providing potable water, sewerage, trade waste, and recycled water services to nearly 2 million residential, commercial, and industrial customers across south-eastern Melbourne and regional Victoria, regulated by the Essential Services Commission.

Ownership category

akta.pro rank

Product category

Water Utility Services

NAICS

Water Supply and Irrigation Systems (22131), Water Supply and Irrigation Systems (221310), Water, Sewage and Other Systems (2213), Sewage Treatment Facilities (221320)

SIC

Water Supply (4941), Sanitary Services (4950), Totalizing Fluid Meters & Counting Devices (3824)

akta.pro primary industry

Water Supply & Wastewater Utilities Administration (BPAIACAG)

akta.pro secondary industry

Recycled Water Customer Programs & Demand Management (Connections, Rate Design, End‑Use Controls) (EUANAGAJ)

Keywords

• Water utility services
• Wastewater management
• Sewerage services
• Smart water metering
• Recycled water supply

Headquarters

HQ city

Heatherton

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Water Supply Services: Revenue from providing potable water supply services to residential, commercial, and industrial customers. Pricing is regulated by the Essential Services Commission with price increases approved annually. In 2026-27, average annual water bills increased by 7% in Melbourne ($73) and 5% in regional areas ($68).
2. Sewerage Services: Wastewater collection and treatment services. Fixed service charges plus usage-based components for commercial and industrial discharges.
3. Trade Waste Management: Charges for transporting, monitoring, treating, and administering liquid waste generated by commercial and industrial businesses. Includes consent processing, inspections, and compliance monitoring fees.
4. Developer Charges: Charges for new water and sewer connections, property development services, and infrastructure augmentation fees for developers and builders.
5. Parks and Drainage Charges: Pass-through charges for Parks Victoria and waterways management, collected on behalf of government bodies.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

South East Water is a Victorian government-owned water corporation that delivers reticulated potable water supply, sewerage (wastewater collection and treatment), trade waste management, and Class A recycled water services to nearly 2 million residential, commercial, and industrial customers across southeastern Victoria. The company operates Australia's largest smart water meter programme (1 million units) and provides digital customer service platforms (mySouthEastWater portal, PropertyConnect, Wastelog, SEW Chat AI chatbot) for account management, billing, trade waste compliance, and developer services.

Product overview

South East Water operates as a Victorian water corporation delivering an integrated suite of water, sewerage, and recycled water services. Its core product portfolio centres on reticulated potable water supply, sewerage (wastewater collection and treatment including biogas and biosolids), and recycled water services. The company runs several digital customer-facing platforms: the mySouthEastWater self-service portal for account and billing management, PropertyConnect for property and development service requests, and Wastelog for trade waste transporter records. Its flagship technology initiative is the 1 million unit Digital Water Meter rollout using Huizhong SCL61H-100 smart ultrasonic meters with proprietary vibration sensors for network leak detection — Australia's largest smart water meter programme. The SEW Chat AI chatbot provides automated customer service using enterprise NLP tools. Recent new products include mobile Chlorine Dosing Trailers for rapid water safety response and the AUD 113.2 million Western Port Recycled Water Scheme under construction in Cardinia Shire.

Differentiator

Problem solved

Functional benefit

Products and services

• Potable Water Supply Services Reticulated potable (drinking) water delivery to residential, commercial, and industrial customers across southeastern Victoria, including water treatment, network management, and emergency response. Regulated by the Essential Services Commission with usage-based quarterly billing.
• Sewerage Services

Quantifiable outcome

• Customer savings of AU$2.9 million and 823Ml of water through smart meter leak detection during 2023-2024
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• Beca Fulton Hogan Interflow Joint VenturecoreStrategic or Co-development Partner · 12 June 2026Delivery partner for the AUD 113.2 million Western Port Recycled Water Scheme. The joint venture brings together Beca (engineering consultancy), Fulton Hogan (construction), and Interflow (pipeline infrastructure specialist) to construct the recycled water infrastructure delivering up to 4,000 million litres of Class A recycled water annually to Cardinia Shire farmers.
• AvnetcoreTechnology or IntegrationAvnet has been awarded the contract to supply Huizhong's SCL61H-100 smart ultrasonic water meters for South East Water's 1 million unit digital meter rollout - Australia's largest smart water meter programme. Avnet established a dedicated water meter test lab at its Bayswater facility in Melbourne to support deployment verification testing. The programme focuses on leak detection and non-revenue water reduction.
• HuizhongcoreTechnology or IntegrationManufacturer of the SCL61H-100 smart ultrasonic water meters being deployed in South East Water's 1 million unit smart meter programme. The meters feature proprietary vibration sensors for accurate network leak detection.
• Zero Emissions Water (ZEW)coreStrategic or Co-development PartnerSector-wide renewable energy purchasing programme through which Victorian water organisations combine demand to access large renewable projects including the Kiamal Solar Farm and Cherry Tree Wind Farm. South East Water procures renewable electricity through this programme as part of its net-zero emissions commitment.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Yarra Valley Water: Victoria's largest metropolitan water utility serving Melbourne's northern and eastern suburbs. Closely comparable to South East Water in customer scale, regulated monopoly status under the Water Act 1989, mixed residential/business customer base, and participation in the same Water Sector Emissions Transition Plan.
• Greater Western Water: Metropolitan Melbourne water utility formed from the merger of City West Water and Western Water, serving Melbourne's western growth corridors. Comparable to South East Water as a regulated Victorian monopoly water and sewerage corporation with similar residential/business mix and developer services.
• Melbourne Water: Victorian bulk water supplier and manager of Melbourne's waterway and drainage catchments. Closely related to South East Water through shared service territory, drinking water wholesaling relationship, and co-participation in the Water Sector Emissions Transition Plan and recycled water initiatives.

Regional players

• Coliban Water: Regional Victorian water corporation serving communities north of Melbourne. Comparable as a Water Act 1989 corporation providing water and sewerage services with similar regulatory oversight and net-zero commitments, though operating in a regional rather than metropolitan service area.
• North East Water: Regional Victorian water corporation serving Victoria's north-east. Comparable to South East Water in regulatory structure, customer mix, and emissions framework participation, though operating across a geographically dispersed rural service area.

Broad incumbents

• Sydney Water: NSW's largest state-owned water utility serving greater Sydney. Comparable in monopoly water/sewerage provision, regulatory oversight, smart metering and recycled water programmes, but operates at materially larger scale in a different jurisdiction.
• SA Water: South Australian government-owned water utility providing potable water, recycled water and wastewater services statewide. Comparable in regulated monopoly model, government ownership, and emissions reduction initiatives, but operating in a different state and across metropolitan and regional customers.
• Water Corporation (Western Australia): Western Australia's principal water utility supplying integrated water, wastewater and drainage services. Comparable to South East Water as a large government-owned water and sewerage provider with integrated recycled water and sustainability programmes, but at much larger geographic and customer scale.
• Hunter Water: NSW state-owned water utility serving the Hunter, Central Coast and Greater Sydney regions. Comparable to South East Water in regulated monopoly structure, integrated water and wastewater services, and ongoing investment in recycled water and emissions reduction.
• TasWater: Tasmania's government-owned water and sewerage utility. Comparable to South East Water in integrated water/wastewater monopoly model, government ownership, and regulatory cost-pass-through framework, but serving a smaller, regional customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/southeastwater
• Facebookfacebook.com/sewmelbourne
• LinkedInlinkedin.com/company/south-east-water

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 South East Water