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pHathom Technologies develops a process to remove atmospheric carbon dioxide and store it in seawater.
pHathom Technologies captures atmospheric CO2, dissolves it in seawater and neutralizes it with limestone for ocean storage as calcium bicarbonate. The company was founded in 2024 by CEO Kimberly Gilbert and co-founder Andrew Ray and is based in Halifax, Canada. It raised CAD 4.00 mn in Seed funding on February 5, 2026, led by Propeller, with Invest Nova Scotia, New Brunswick Innovation Foundation and Carmeuse Ventures.
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