About Us
OSOS (Onshore Offshore) Global Services are owned and operated here in Perth, Western Australia, however our business is far from a state company. Our team partner with oil, gas and mining companies all around the world providing specialist services in Shutdowns and Maintenance; Electrical, Instrumentation, and Control Systems; and Operational and Information Technology.
Our Values
We take complete accountability for our performance and work hard to deliver optimal value.
Safety First
Safety always comes first at OSOS – for our people, the environment and for the companies with which we work. We value the health and wellbeing of all our employees and are committed to ensuring the safest possible work environments for our people and the public.
TeamWork
We pride ourselves on building the right teams to tackle any project and that means providing a welcoming and inclusive work environment which makes our employees feel they are an important part of the team. A team built on trust and respect support each other and produce better, safer results for your company and for ours.
Results
Service
Integrity
Our Leadership Team

Trent Colyer
As an electrical contractor and hazardous area specialist, Trent has an enviable reputation in the shutdown and maintenance space. Trent has worked in mining, oil and gas, and industrial sectors for the past 17 years, involved in the planning, design, development, construction and management across a wide variety of works and operations. Trent has developed a unique perspective into the complexities of conducting maintenance and shutdowns safely and cost-effectively. Working with teams in supervisory positions has honed his talents in building happy, motivated teams to increase productivity, job success and above all safety
Having worked with major companies including BHP, Rio Tinto, Woodside, Inpex, and Chevron in onshore and offshore roles, Trent is highly regarded not only for his thorough knowledge of electrical, instrumentation, and control systems but also for his understanding of the scheduling, supervision, logistics, and structured maintenance processes needed keep costs controlled, timelines met, and plants effectively maintained, brought back online, and running efficiently.
Trent has remarkable proficiency in managing teams, overseeing critical projects and shutdowns, and easing the maintenance burden of operations in order to allow clients to focus on production over chasing behind-schedule maintenance and dealing with all-too-common schedule over-runs.