About us


Established in 2007, Assess Orr is a family owned and operated business specialising in construction, commissioning and maintenance services within the oil and gas, power generation, water and mining sectors. We are NATA accredited to carry out hydrostatic/ pneumatic testing. Add in our ability to carry out torque verification, flange management, and vessel inspections, we are a one-stop shop that provides peace of mind to our clients throughout the entire construction and commissioning processes, with effortless transitioning into the maintenance phase.

Directed by Mark Orr, Assess Orr started as a scaffolding/ rigging/ heavy lift business and over the years, through dedication and hard work, we have expanded our services backed with ISO and NATA accreditation, to be able to meet clients changing needs. All of Assess Orr's personnel work to the highest standards, and in accordance with industry codes and safety regulations so you can be sure we will complete any job with the necessary skills and resources at maximum proficiency.

With clients that include Shell, QGC, OK Tedi Mining Limited, Origin Energy, BHP BIO, Chevron, Downer, CPB Contractors, Thiess and SNC Lavalin, we have safely delivered on some of the largest and most technically challenging projects within Australia.