What Tallai does

Tallai is a privately held Australian building contractor specialising in civil, water, rail, infrastructure, and resources construction. Founded in 2005 and headquartered in Hornsby, NSW, the company operates from three offices (Hornsby, Nerang/Gold Coast, Townsville) and delivers projects across Queensland, NSW, ACT, and Tasmania. Tallai operates a dual-role model: it serves as a principal contractor to government water utilities, local councils, and infrastructure owners, and as a specialist subcontractor to Tier 1 construction firms (CPB, Downer, John Holland, Abigroup, G&K Civil) on major infrastructure programs. The customer base spans Sydney Water, Hunter Water, Gold Coast Water, TasWater, ICON Water, Canada Bay Council, Whitsunday Regional Council, Gold Coast City Council, and Origin Energy.

Tallai's service portfolio is organised across five sectors — Rail & Infrastructure, Building, Civil, Water & Wastewater, and Resources — supplemented by project services (constructability reviews, risk assessment, procurement, scheduling, estimating, design coordination, program management) and consultancy/advisory support. The company deploys Procore construction management software across all projects for procurement, project management/controls, completion, and handover, with tablet-equipped supervisors for real-time document access. Its Integrated Management System (IMS) is certified to ISO 45001 (Health & Safety), ISO 9001 (Quality), and ISO 14001 (Environmental) standards. Tallai holds NSW Fair Trading and QBCC building contractor licences and HVNL Chain of Responsibility compliance, supporting eligibility for highly regulated utility and rail work.

Revenue is generated through construction contract services (lump sum, construct-only, design and construct, and alliance arrangements) and consultancy/advisory services. Individual project values range from approximately $350K to over $1B at the program level, with Tallai's specialist scope typically representing a smaller fraction of program value. The company is founder/owner-operated with no disclosed external funding rounds or institutional investors. Leadership brings over 100 years of combined experience in water, civil, infrastructure, and rail sectors, with directors actively involved in project delivery.

Name

Tallai

Legal name

Tallai

Website

https://tallai.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

Tallai is an Australian building contractor delivering civil, water, rail, building, and resources construction projects across NSW, Queensland, ACT, and Tasmania, serving government water utilities, local councils, and Tier 1 construction firms as both principal contractor and specialist subcontractor.

Ownership category

akta.pro rank

Product category

Civil and Infrastructure Construction Services

NAICS

Nonresidential Building Construction (2362), Commercial and Institutional Building Construction (236220), Utility System Construction (2371), Heavy and Civil Engineering Construction (237)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industries

Construction Management (Agency/Owner’s Rep) (IMAFAAAC), Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE), Stormwater & Drainage Infrastructure Construction (Sewer, Detention, Outfalls) (IMAFAGAF)

Keywords

• Civil construction services
• Water and wastewater infrastructure
• Rail and transport construction
• Building and refurbishment services
• Construction project management

Headquarters

HQ city

Hornsby

HQ country

Australia

HQ region

Oceania

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Contract Services: Revenue generated through principal contractor roles delivering civil, building, water treatment, and rail infrastructure projects. Also serves as specialist subcontractor to Tier 1 construction companies (CPB, Downer, John Holland, Abigroup) on major infrastructure programs. Contracts include lump sum, construct-only, design and construct, and alliance arrangements.
2. Consultancy and Advisory Services: Provides project management, TOC/PBE management, procurement management, scheduling, design coordination, constructability reviews, risk analysis, and estimating services to strengthen in-house project teams.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Tallai is a licensed Australian building contractor that operates as a principal contractor and specialist subcontractor delivering design and construction services across rail and infrastructure, building, civil, water and wastewater, and resources projects. As principal contractor, Tallai manages every stage from concept to completion; as subcontractor it provides specialist building, civil, and structural works to Tier 1 contractors on major programs. It also supplies consultancy and advisory services including constructability reviews, risk assessment, procurement, scheduling, estimating, and design coordination.

Product overview

Tallai is a licensed building contractor offering a unified portfolio of construction services across five core sectors: Rail & Infrastructure, Building, Civil, Water & Wastewater, and Resources. The company operates as a principal contractor managing design and construction from concept to completion, supplemented by project services (estimating, scheduling, procurement, design coordination) and consultancy/advisory support. All services are delivered through an integrated approach combining in-house teams with trusted subcontractors, with technology adoption (Procore) supporting project management and delivery across the service lines.

Differentiator

Problem solved

Functional benefit

Products and services

• Rail & Infrastructure Services Principal contractor and specialist subcontractor delivery for rail and transport infrastructure projects, including station upgrades, platform and canopy construction, structural steel and precast concrete works, heritage remediation, and shutdown/possession planning for works on live rail assets.
• Building Services Commercial and industrial building construction, refurbishment, and fit-out services covering structural works, electrical, mechanical, plumbing, and architectural finishes for asset owners and Tier 1 contractors.
• Civil Services Civil construction works for infrastructure projects including earthworks, drainage, stormwater installation, pavement construction, road furniture, and concrete retaining walls.
• Water & Wastewater Services Construction and refurbishment of water and wastewater treatment assets, pump stations, pipelines, and dam infrastructure, delivered directly for water utilities and as part of multi-party water alliances.
• Project Services End-to-end construction project management services including constructability reviews, risk assessment, procurement, scheduling, estimating, and design coordination, supplied to clients either as part of a Tallai principal contract or as a stand-alone capability.
• Consultancy and Advisory Support Advisory services strengthening client in-house project teams with planning, delivery, and asset maintenance support for infrastructure and construction projects.

Named customers7 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

14 partnerships are on record, tiered core.

• BMD and CNF & AssociatescoreStrategic or Co-development Partner · 1 January 2023Tallai partnering with BMD and CNF & Associates to deliver Design & Construct Sewer Pump Station Package across Richmond and North Richmond as part of Sydney Water's Network and Treatment Plant Upgrade.
• Downer EDI WorkscoreStrategic or Co-development Partner · 1 January 2021Downer engaged Tallai to construct a Services Building at Hurlstone Park, refurbish 3 stations concourse and platform buildings, and construct new platform buildings and canopy structures at Wiley Park Station as part of Sydney Metro Southwest Metro Stations Upgrade. Project value $11M.
• AbigroupcoreStrategic or Co-development Partner · 1 January 2021Abigroup engaged Tallai to manage building works for Whitsunday Regional Council water treatment plants at Proserpine and Bowen. Total project value $50M, building works value $4.1M. Scope included Control and Admin Building, Main Switch room Building, and Chemical Dosing Building.
• John HollandcoreStrategic or Co-development Partner · 1 January 2021John Holland engaged Tallai for Oxley Odour Control works and Building and Wynnum MFRO Building as part of Brisbane Water Enviro Alliance (BWEA). Program value $210M, Tallai scope $3.4M.
• Abigroup/Lend LeasecoreStrategic or Co-development Partner · 1 January 2021Gold Coast City Council, Abigroup, KBR and Worley Parsons partnered to deliver the Coombabah and Stapylton Program Alliance ($77M). Tallai provided governance, design coordination, construction management and commissioning.
• AbigroupcoreStrategic or Co-development Partner · 1 January 2021Hunter Water, Abigroup and CH2MHill partnered to deliver the Hunter Treatment Alliance ($240M). Tallai provided program management, TOC management, estimating and design coordination across nine projects.
• AbigroupcoreStrategic or Co-development Partner · 1 January 2021ActewAGL, Abigroup, John Holland and GHD partnered to deliver the Bulk Water Alliance ($750M). Tallai provided project management, TOC management and estimating of Murrumbidgee to Googong Pipeline (M2G) project, completing stalled TOC in under 6 months.
• AbigroupcoreStrategic or Co-development Partner · 1 January 2021Sydney Water, Abigroup and CH2MHill partnered to deliver the Sydney Water Odour Management Program Alliance ($150M). Tallai established Alliance bid team and provided program management post award.
• Downer UtilitiescoreStrategic or Co-development Partner · 1 January 2021ICON Water and Downer Utilities partnered to deliver the ICON Water Alliance ($150M). Tallai provided TOC Management, Design Coordination, TOC Estimating, Procurement Management, Constructability Reviews and Risk Analysis for Lower Molonglo Water Quality Control Centre upgrades.
• UGLcoreStrategic or Co-development Partner · 1 January 2021TasWater, UGL, CPB and WSP partnered to deliver the TasWater CDO Alliance ($1.2B over four years). Tallai provided TOC/PBE management, procurement management and scheduling.
• John HollandcoreStrategic or Co-development Partner · 1 January 2021Pine Rivers, John Holland and MWH partnered to deliver the Water Ways for Life Alliance ($250M). Tallai was construction/engineering management for Murrumba Downs WWTP upgrade and new Advanced Water Treatment Plant, producing innovative solution to deliver ahead of schedule.
• CPB Downer JVcoreStrategic or Co-development Partner · 1 January 2021CPB and Downer Joint Venture engaged Tallai to construct driver facilities and amenities at multiple locations on the Parramatta Light Rail. Project value $1.5M.
• CPB Dragados Samsung JVcoreStrategic or Co-development Partner · 1 January 2021Tallai with G&K Civil undertook above ground civils package for New M5 (Westconnex) under lump sum contract as 6 separable portions. Project value $2.5M.
• ProcorecoreTechnology or Integration · 1 January 2021Tallai invested in Procore, the construction industry's most widely used construction management software, rolled out across all projects from procurement, project management/controls to completion and handover. Supervisors equipped with tablets for real-time access to project drawings and documents.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Interflow: Australian specialist contractor focused on water, wastewater and pipeline infrastructure, including rehabilitation and new build for utilities — directly comparable to Tallai's water and wastewater service line and similar mid-sized specialist model.
• Abergeldie Complex Infrastructure: Mid-sized Australian civil and water infrastructure contractor that operates as both principal and specialist subcontractor to Tier 1 firms — closely comparable to Tallai's positioning, geographic footprint and alliance delivery model.
• Diona: Australian specialist contractor in water, sewer, stormwater and civil infrastructure, frequently engaged as a subcontractor to Tier 1 contractors on utility programs — directly comparable on service mix and client base to Tallai.
• Rob Carr: Australian specialist contractor in trenchless water and wastewater infrastructure, including microtunnelling and pipeline construction — closely aligned with Tallai's water/wastewater and microtunnelling scope (e.g., Richmond/North Richmond pump station).
• BMD Group: Privately held Australian civil infrastructure contractor delivering water, sewer, roads and urban development projects, often partnering with water utilities — Tallai has an active mutual partnership with BMD, indicating directly comparable scope and customer overlap.
• Decmil Group: ASX-listed Australian contractor delivering civil, building and infrastructure projects for government and resources clients — comparable to Tallai's multi-sector infrastructure delivery model and alliance-style engagements.
• Roberts Pumphouse: Smaller Australian specialist contractor in water and civil infrastructure including pump stations and treatment plant works — closely comparable in niche, scope size and customer type to Tallai's water service line.

Broad incumbents

• Service Stream: Large ASX-listed Australian infrastructure services provider across water, gas, electricity and rail — broader incumbent operating across many of the same end-markets as Tallai but at materially larger scale.
• Downer EDI: Tier 1 ASX-listed Australian contractor and a documented Tallai client — operates broadly across rail, water, road and utilities with much larger scale, providing useful comparison on the client side of Tallai's subcontracting model.
• SRG Global: ASX-listed specialist infrastructure services and engineering contractor with exposure to mining, civil and utilities — broader incumbent with adjacent capability profile to Tallai's civil and resources work.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tallai
• Xx.com/TallaiProjGrp
• Facebookfacebook.com/tallaiprojectgroup

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Tallai