Google and microsoft-backed Terradot acquires carbon removal competitor | techcrunch. By Tim De Chant Publication Date: 2026-02-06 20:26:00 Carbon removal startup Terradot is acquiring competitor Eion, the two companies announced today. The sale was driven largely by big investors like sovereign wealth funds, which want to work with companies that can handle large contracts. Eion was simply too small, Eion CEO Anastasia Pavlovic Hans told The Wall Street Journal. Both companies spread pulverized rocks on farm fields to absorb carbon dioxide from the atmosphere. Known as enhanced rock weathering (EWR), it speeds up a natural process and has the potential to be a low-cost way to remove carbon, but it requires large and distributed operations. The spread between what EWR companies would like to charge and what buyers would like to pay remains wide, according to a survey by CDR.fyi. California-based Terradot's operations are centered on Brazil, where the company works with basalt as its mineral of choice, while Eion works in the U.S. and uses olivine. Terradot's investor list includes Gigascale Capital,...

Terradot, a US-based enhanced rock weathering carbon removal company, has acquired fellow startup Eion's assets to create a global ERW platform. The combined entity holds carbon removal contracts totalling over 400,000 tonnes with buyers including Microsoft, Google and Frontier, representing one of the largest contracted ERW portfolios in the market. Terradot is integrating Eion's core team, patent portfolio and measurement, reporting and verification work into its platform. ERW accelerates natural geological reactions by spreading crushed silicate rocks on farmland, which chemically bind atmospheric CO₂ into stable bicarbonates whilst improving soil quality. Founded in 2022, Terradot has raised roughly $62 million. Eion, founded in 2020, has raised about $15 million from backers including AgFunder.