water-technology
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Ryan Vogel Is Teaching Water Filters to Shake Off the Gunk
The Pure Blue Tech founder has spent more than a decade pursuing a stubborn idea: a membrane should defend itself. Now his ultrasonic reverse-osmosis technology is headed into the XPRIZE Water Scarcity semifinals.
Eric Adler Put a Speedometer on the Water Meter
A drought, three engineering students and one stubborn household mystery became Flume. Eric Adler's decade-long bet is that water changes when people can finally see it.
Alex Rappaport Bet on the Water Nobody Wanted
He started as a river guide, found a neglected piece of university science, and built ZwitterCo around an unglamorous industrial problem: filters that foul. The useful lesson is less about having an idea than learning how to carry one into the world.
David Rubinstein
David Rubinstein is the CEO of OptiRTC (Opti), a Boston-area company that builds cloud software to monitor and adaptively control stormwater infrastructure in real time. A technology operator with roughly four decades of experience scaling high-tech startups, he joined Opti as President and COO in 2018 and became CEO in 2019, steering the company from an engineering-services consultancy into a digital water product business. His background spans SaaS and data companies including DataXu, Resolve Technology, Invoke Solutions, and Convergent Group, which he helped take public before its sale to Schlumberger.