membrane-technology
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Brendan Smith
Brendan Smith is the co-founder and CEO of SiTration, an MIT spinout commercializing a tunable silicon membrane that recovers critical metals like copper, cobalt, nickel and lithium from mining waste and spent batteries without the mountains of chemicals the old way demands. A materials scientist who came to MIT from Canada in 2013, he turned a desalination-lab discovery into a venture-backed company that has raised roughly $14.4 million and partnered with mining giant Rio Tinto. He runs the company from a 11,000-square-foot pilot facility in Watertown, Massachusetts.
Murari Ramkumar
Murari Ramkumar is the founder and CEO of Vimano, a deeptech materials startup building PFAS-free, ion-conductive membranes for flow batteries, green-hydrogen electrolyzers and fuel cells. A materials scientist trained at NITK Surathkal and the University of Pennsylvania, he co-founded the company in 2019 with Dr. Nagesh Kini and is chasing an audacious goal: to put a Vimano membrane inside one of every two large-scale energy storage devices, electrolyzers and fuel cells on the planet. In 2025 Vimano raised roughly $2.9 million in seed funding led by Ankur Capital.
Olgica Bakajin
Olgica Bakajin is the CEO and Founder of Porifera Inc., a San Leandro, California-based company pioneering forward osmosis membrane technology for the food, beverage, and industrial water sectors. A physicist by training - B.A. from the University of Chicago and Ph.D. from Princeton - she spent nearly a decade at Lawrence Livermore National Laboratory developing carbon nanotube membranes that move water 1,000x faster than conventional materials. Her 2006 Science paper on carbon nanotube desalination became the most-cited chemistry article in the journal. In 2009 she spun Porifera out of LLNL, and the company now serves 100+ customers across 20+ countries, helping breweries, coffee roasters, and winemakers concentrate their products without heat, preserving flavor, aroma, and nutrients while slashing energy use by up to 80%.