At Guidera O’Connor, we deliver more than infrastructure. We create the essential systems that enable communities and industries to access safe water, protect the environment, and build resilience for the future. For more than two decades, we have partnered with customers across Australia to solve complex water and wastewater challenges through innovative thinking, specialist expertise, and collaborative project delivery. Our exclusive focus on the water sector means we understand the unique operational, regulatory, and sustainability challenges our customers face. By combining engineering excellence, practical construction experience, and a commitment to long-term partnerships, we deliver solutions that maximise value, reduce risk, and leave a positive legacy for the communities we serve.
| Website | http://www.goc.net.au |
| Revenue | $21.1 million |
| Employees | 147 (115 on RocketReach) |
| Founded | 2001 |
| Address | 31 Holland Street, Thebarton, South Australia 5031, AU |
| Phone | +61 8 8238 9999 |
| Technologies | |
| Industry | Utilities, Commercial & Residential Construction, Construction |
| Keywords | Water Treatment, Wastewater Treatment, Water Projects, Infrastructure Projects, Civil Engineering, Project Delivery, Water Management, Fluid Mechanics, Environmental Engineering, Process Engineering, Pumps, Valves, Filtration Systems, Water Supply, Sewerage, Hydraulic Systems, Municipal Water, Construction |
| Competitors | Lexon Insurance Pte Ltd, Aon Australia, Lawcover, Allianz Australia, The Law Society of NSW, Cohen Legal, DWF, Maddocks, Norton Rose Fulbright, HFW +20 more (view full list) |
| SIC | SIC Code 16 Companies, SIC Code 162 Companies |
| NAICS | NAICS Code 23799 Companies, NAICS Code 237990 Companies, NAICS Code 23 Companies, NAICS Code 237 Companies, NAICS Code 2379 Companies |
Looking for a particular Guidera O'Connor employee's phone or email?
The Guidera O'Connor annual revenue was $21.1 million in 2026.
Richard Trapp is the Chief Executive of Guidera O'Connor.
115 people are employed at Guidera O'Connor.
Guidera O'Connor is based in Thebarton, South Australia.
The NAICS codes for Guidera O'Connor are [23799, 237990, 23, 237, 2379].
The SIC codes for Guidera O'Connor are [16, 162].