O'Sullivan

What O'Sullivan does

O'Sullivan Group, trading also as O'Sullivan Civil Contractors, is an Australian specialist ground engineering subcontractor founded circa 1994 and headquartered in Croydon, New South Wales. The company delivers four integrated service lines — piling (bored piles, CFA piles, soldier piles, micro piling, restricted-access piling), anchoring (ground anchors, strand anchors, soil nails, rock bolts, self-drilling anchors), shotcrete (wet-mix and gunite with plain, float, trowel, and decorative mock-rock finishes), and complex shoring (low headroom, tight access, ground injection, stabilisation). Its competitive position rests on a fleet of specialised equipment sourced from manufacturers such as Casagrande, JunJin, Ripamonti, Sandvik, Hitachi, Soilmec, Tescar, and Tysim — including low-headroom and restricted-access rigs that allow work in basements, tunnels, and beneath existing structures where standard machinery cannot operate — paired with 30+ years of operator expertise and a zero-LTI safety record.

O'Sullivan generates project-based revenue as a subcontractor to tier-one head contractors (Lend Lease, John Holland, Built, CPB Contractors, Seymour Whyte, Hutchinson Builders, Downer, Hickory, Delta Group, Roadtek, Demex) and directly to state and local government agencies (Transport for NSW, NSW Government, QLD Government, Brisbane City Council, SA Government DIT) on infrastructure, transport, residential, marine, education, and heritage projects across NSW, QLD, SA, and VIC. Pricing is quote-based per project with no standard tiers, contracts are multi-year, and the company also derives a secondary equipment-rental stream from its machinery fleet. GTM is enterprise field sales via competitive tender and established relationships, supported by a modest organic social presence on LinkedIn, Instagram, and Facebook.

The firm is privately held with no disclosed institutional investors, no parent company, no M&A activity, no funding rounds, no patents or trademarks, and no published management roster. Operationally it is active, with recent 2024-2025 project deliveries spanning Barossa Park, Casa Tranquila, One Earle Lane, Lewisham Greenway Tunnels, and the Pacific Motorway M1 Palm Beach to Tugun upgrade. No AI/ML, software products, APIs, or digital platforms are evidenced; differentiation is entirely physical-asset and expertise-based.

Name

O'Sullivan

Legal name

O'Sullivan Group

Website

https://osullivangroup.com.au

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

101–250 employees

Short description

O'Sullivan Group is an Australian specialist ground engineering subcontractor delivering piling, anchoring, shotcrete, and complex shoring services to tier-one head contractors and state government clients across NSW, QLD, SA, and VIC.

Ownership category

akta.pro rank

Product category

Ground Engineering and Shoring Services

NAICS

Site Preparation Contractors (23891)

SIC

Construction - Special Trade Contractors (1700), Heavy Construction Other Than Bldg Const - Contractors (1600), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Marine Piling & Deep Foundations (Jetties, Dolphins, Moorings) (IMAFAJAE)

Keywords

• Ground engineering services
• Shoring solutions
• Piling services
• Anchoring systems
• Shotcrete application

Headquarters

HQ city

Croydon

HQ country

Australia

HQ region

Oceania

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales, Others

Revenue model

1. Ground Engineering Services: Project-based professional services revenue from providing shoring, piling, anchoring, and shotcreting services to construction projects. Services are quoted and contracted on a per-project basis with pricing based on scope, complexity, and duration.
2. Equipment Rental & Leasing: O'Sullivan offers clients access to their large fleet of quality machinery for ground engineering applications, providing equipment alongside engineering expertise

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

O'Sullivan Group is an Australian specialist subcontractor providing ground engineering and shoring services for complex construction projects. The company delivers piling, anchoring, shotcreting, and complex shoring solutions to head contractors, infrastructure developers, and government clients across NSW, QLD, SA, and VIC, using a large in-house fleet of advanced drilling and piling rigs.

Product overview

O'Sullivan Group is a civil construction company providing ground engineering services rather than a software product company. The company offers four integrated service offerings: Piling Services (bored piles, CFA piles, micro piling, restricted access piling), Anchoring Services (ground anchors, soil nails, rock bolts, self-drilling anchors), Shotcrete Services (wet-mix shotcrete application with various finishes), and Complex Shoring Services (low headroom, tight access, ground injection, stabilization). These services work together to provide comprehensive ground engineering solutions for complex construction projects, with the company leveraging specialized equipment from manufacturers like Casagrande, JunJin, Ripamonti, Sandvik, and Hitachi.

Differentiator

Problem solved

Functional benefit

Products and services

• Piling Services Comprehensive piling services including bored piles, soldier piles, Continuous Flight Auger (CFA) piles, micro piling, and restricted access piling for foundation support and soil stabilisation on construction sites.
• Anchoring Services Anchoring solutions including ground anchors, temporary and permanent strand anchors, soil nails, rock bolts, and self-drilling anchors for structural stability in shoring and retention applications.
• Shotcrete Services Wet-mix shotcrete and gunite application services with finish options including plain, float, trowel, and decorative mock rock finishes for retaining walls, tunnels, and slope stabilisation.
• Complex Shoring Services Specialised shoring solutions for challenging sites including low headroom, tight access, stabilisation, and ground injection services delivered in complex urban, basement, and confined construction environments.

Quantifiable outcome

• Zero-harm safety record maintained across all projects
• +1 more outcomes

Named customers16 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

21 partnerships are on record, tiered core, moderate, flagship and minor.

• Lend LeasecoreStrategic or Co-development PartnerMajor Australian construction and investment management group. O'Sullivan collaborates with Lend Lease on various construction projects, providing specialist ground engineering services including shoring, piling, anchoring, and shotcreting solutions.
• DownercoreStrategic or Co-development PartnerLeading Australian engineering and infrastructure company. O'Sullivan works with Downer on civil construction projects requiring specialised ground engineering expertise.
• HickorymoderateStrategic or Co-development PartnerAustralian building and construction company specialising in commercial and residential projects. O'Sullivan provides ground engineering services for Hickory's construction projects.
• BuiltcoreStrategic or Co-development PartnerAustralian construction company. O'Sullivan has completed multiple projects with Built including Queens Park Retaining Wall, providing anchors, steelfixing and shotcrete services.
• John HollandcoreStrategic or Co-development PartnerLeading Australian engineering and construction company. O'Sullivan collaborates on major infrastructure projects requiring specialist ground engineering solutions.
• Sydney MetroflagshipStrategic or Co-development PartnerNSW Government's metro rail authority delivering Sydney Metro projects. O'Sullivan has made significant contributions to Sydney Metro tunnelling projects with advanced shoring and ground engineering solutions.
• Seymour WhytecoreStrategic or Co-development PartnerAustralian civil engineering company. O'Sullivan engaged by Seymour Whyte for Pacific Motorway M1 Palm Beach to Tugun project providing rock bolts, soil nails, shotcrete and steel fixing.
• EarthworxmoderateStrategic or Co-development PartnerAustralian earthmoving and civil construction company. O'Sullivan works with Earthworx on civil construction projects.
• NSW GovernmentflagshipStrategic or Co-development PartnerNSW Government as infrastructure developer. O'Sullivan provides specialist ground engineering services for various NSW Government infrastructure projects.
• Transport for NSWflagshipStrategic or Co-development PartnerNSW Government transport authority. O'Sullivan completed Lewisham Greenway Tunnels project using hollow bar anchors, a first for TfNSW rail projects.
• WardmoderateStrategic or Co-development PartnerAustralian construction company. O'Sullivan collaborates with Ward on various construction projects requiring ground engineering expertise.
• Delta GroupcoreStrategic or Co-development PartnerAustralian civil and mining contractor. O'Sullivan leverages civil and rail expertise to support Delta Group's projects.
• Brisbane City CouncilcoreStrategic or Co-development PartnerLocal government authority for Brisbane. O'Sullivan provides ground engineering services for Brisbane City Council transport and infrastructure projects.
• CPB ContractorscoreStrategic or Co-development PartnerAustralian construction company and part of CIMIC Group. O'Sullivan provides specialist ground engineering services for CPB projects.
• GeorgioumoderateStrategic or Co-development PartnerAustralian construction company. O'Sullivan collaborates with Georgiou on civil construction projects.
• RoadtekcoreStrategic or Co-development PartnerQueensland Department of Transport and Main Roads commercial arm. O'Sullivan completed Little Purga Creek project for Roadtek including steel fixing, shotcrete and soil nails.
• Hutchinson BuilderscoreStrategic or Co-development PartnerAustralian construction company. O'Sullivan awarded design and construct package for stabilisation works at Satellite Hospitals Program for Hutchison Builders.
• SA Government DITcoreStrategic or Co-development PartnerSouth Australian Government Department for Infrastructure and Transport. O'Sullivan provides ground engineering services for SA Government infrastructure projects.
• Buttrose EarthmoversmoderateStrategic or Co-development PartnerAustralian earthmoving company. O'Sullivan collaborates with Buttrose Earthmovers on civil construction projects.
• Master Builders QLDminorStrategic or Co-development PartnerIndustry association for building and construction in Queensland. O'Sullivan maintains membership and industry presence through this relationship.
• QLD GovernmentflagshipStrategic or Co-development PartnerQueensland Government. O'Sullivan provides ground engineering services for various QLD Government infrastructure projects including the Satellite Hospitals Program.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Wagstaff Piling Services: Australian specialist piling and ground engineering contractor offering bored piles, CFA piles, anchors and shoring across NSW, QLD and VIC. Direct head-to-head competitor on most infrastructure piling tenders O'Sullivan bids.
• Mainmark: Asia-Pacific ground engineering and asset preservation specialist with overlapping service lines including ground improvement, anchoring and underpinning. Comparable mid-sized specialist competing on complex ground engineering scopes.
• JLE Group: Australian industrial, marine and civil contractor with overlapping piling, shoring and ground stabilisation capability. Direct peer on complex-shoring and marine piling tenders across the eastern seaboard.
• Foundation Specialists Group: Australian foundation engineering contractor delivering piling, underpinning and ground stabilisation for commercial, residential and infrastructure projects. Closely comparable specialist competing on similar tenders.
• Australian Geotechnical Engineering (AGE): Specialist Australian geotechnical contractor offering piling, anchors, shotcrete and ground improvement. Competes with O'Sullivan on infrastructure, mining and marine projects, with a comparable fleet-led operating model.
• Vibro-Pile: Australian piling and foundation contractor focused on driven and bored piles for commercial, residential and infrastructure projects. Closely comparable mid-sized specialist competitor in the same geographic markets.

Broad incumbents

• Frankipile Australia (Keller Group): Frankipile was a major Australian piling specialist now part of global geotechnical group Keller. Overlaps with O'Sullivan across piling, anchoring and ground engineering services, but with a broader international footprint and deeper balance sheet.
• Menard Oceania (Soletanche Bachy): Subsidiary of global geotechnical major Soletanche Bachy, offering ground improvement, piling and anchoring across Australia. Competes on large infrastructure tenders while leveraging a global parent for technical depth and capital.

Regional players

• Piletech: Trans-Tasman piling and foundations specialist operating across New Zealand and into Australia. Comparable services (bored piles, CFA, anchors) with similar fleet-based operating model, though primarily focused on the NZ market.

Others

• Geofabrics Australasia: Supplier of geosynthetics, rockfall protection and ground stabilisation materials used in shotcrete, anchoring and slope stabilisation projects. Adjacent ecosystem participant and potential partner rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/OSullivanCivilContractors
• LinkedInlinkedin.com/company/o-sullivan-civil-contractors
• Instagraminstagram.com/osullivancivil

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 O'Sullivan