ABout Us

What happens when you start with a different question?

CST began with two engineers from outside the pump industry, looking at a familiar problem from a very different perspective.

Instead of asking how to avoid cavitation, they asked what might happen if you could harness it.

Sixteen years of experimentation and engineering later, that question is patented technology, and a new way to think about how the world pumps, cools and purifies.

Our Story

Two engineers, no blinkers, and a siphon that wouldn't behave.

In 2010 Roy Warner sat in the waiting room of a government office, turning over a problem about a siphon that didn't behave the way conventional thinking said it should.

Instead of ignoring the anomaly, he followed the physics, exploring what water actually does when it changes state.

For the next sixteen years, Roy and Alan built their own tools, tested their own ideas and ventured into operating environments conventional equipment couldn't reach.

Eventually they found what they were looking for: stable ground on the far side of the cavitation barrier, where water changes state in a controlled, repeatable, and useful way.

They called it the Stable Vapour Cavity™. And they patented the technology that makes it possible.

Our mission

To develop fluid technologies that help industrial systems become more reliable, more flexible and more sustainable.

CST is focused on solving practical problems in pumping, cooling and purification by changing the operating limits that conventional systems have been built around for decades.
The next chapter

From invention to commercialisation

Proving the technology was only the beginning. The harder challenge was turning 16 years of invention and engineering into something that could be manufactured, integrated and taken to market.

So CST brought in Martin Riegel to lead that transition – carrying the breakthrough out of the workshop and into commercial application.

Today, CST is commercialising the MPR™ Pump Module through pump OEMs, while continuing to develop the underlying technology behind cooling, heating and purification.
Our Team

Invention, engineering, scale

CST brings together invention, engineering experience and commercialisation expertise.

Martin Riegel

CEO

35 years building and scaling technology businesses, including a decade at Intel. With a BBA from Notre Dame and an MBA from Indiana University. Martin takes our breakthroughs into global industrial markets and builds the commercial business around it.

Roy Warner

CTO & Founder

Roy is the technical mind behind our patented Multiphase Rotor™. He brings 35 years in civil engineering and fluid dynamics and three patents in industrial technology. Roy drives our technical direction and innovation pathway, holding the line on what's real versus what's conventional wisdom.

Alan Buys

Research Director & Founder

The mechanical engineer with 37 years' experience and a background in aviation, which is why he thinks about fluids differently than pump engineers do. Alan works at the intersection of physics, design and what survives in the field, turning our concepts into products.

Our partners

Backed by New Zealand’s innovation ecosystem

We work alongside research and commercialisation partners who strengthen how we develop, test and bring this technology to market – including the University of Canterbury, AUT and Callaghan Innovation.
Work with us

Where do you come in?

We're talking to pump OEMs, water infrastructure end users, investors and technical partners. Whether that's integrating MPR™ into your own products, trialling it in a real-world application, or understanding the platform opportunity behind it, this is the conversation we want to have with you.