Who We Are
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect.
Sectors
Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Solutions
Prepare for escalating environmental risks with expert solutions designed to perform under pressure.
Our Thinking
Explore briefs, perspectives and articles that turn insight into action. Discover thought leadership that informs decisions and drives impact. See the ideas shaping environmental solutions and guiding your next move.
Cuture & Careers
Where brilliant people come together to turn environmental science into real-world progress for communities, industry and the planet.

Darrin Stoker

Senior Business Development Manager - Water Assessment and Treatment - Australia
Darrin-Stoker

Darrin Stoker is Senior Business Development Manager for Water Testing and Treatment at Onterris in Australia, bringing more than 30 years of experience across the water and wastewater sector.

Darrin has held senior business development, project management and general management roles supporting the design, delivery and operation of advanced water treatment solutions, including membrane bioreactor–based recycled water plants. He brings deep experience in complex treatment processes, commercial contract negotiation and project delivery, working closely with clients and partners to deliver practical, commercially sound outcomes.

Known for his collaborative approach, Darrin builds strong, long‑term relationships to support successful project delivery across the water and wastewater industry. He is also a member of the Australian Water Association.