Changing State Technologies
Changing State Technologies
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Our Mission

 At Changing State, we are making transformative change by reimagining the physics of fluid dynamics 


Starting with pumps, our innovative solutions cut energy costs, boost reliability, and drive sustainability across industries 

Meet our Leadership

Martin Riegel, CEO

Alan Buys, Research Director & Founder

Roy Warner, CTO & Founder

 Martin is steering Changing State to redefine the pump industry with 35 years of technology leadership, including a decade at Intel. With a BBA from Notre Dame and an MBA from Indiana University, he blends strategic vision with a passion for innovation. Connect with Martin on LinkedIn. 

Roy Warner, CTO & Founder

Alan Buys, Research Director & Founder

Roy Warner, CTO & Founder

 Roy, the technical visionary behind our patented Multiphase RotorTM, brings 25 years of expertise in fluid dynamics and 3 patents in industrial technologies. A Unitec graduate, he’s driving sustainable innovation. Connect with Roy on LinkedIn. 

Alan Buys, Research Director & Founder

Alan Buys, Research Director & Founder

Alan Buys, Research Director & Founder

With 37 years in mechanical engineering, Alan transforms physics-based concepts into reliable solutions. A Diploma in Aeronautical Engineering holder, he’s shaping the future of efficient systems. Connect with Alan on LinkedIn.

Our Journey

Founded in 2009 by Roy Warner, Alan Buys and Neil Spencer, Changing State was born to address decades of stagnation in pump technology. Through rigorous R&D, we developed the patented Multiphase Rotor pump, powered by Stable Vapor Cavity technology. Emerging from stealth in 2025, we’re now in field trials with leading partners in urban infrastructure, manufacturing, and agriculture, delivering smarter, sustainable solutions.

Our Partners

Come visit us in Middle Earth

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