Ossus Biorenewables receives $2.4 million from Nikhil Kamath’s Gruhas and Rainmatter Climate Ossus Biorenewables has raised $2.4 million in funding from Nikhil Kamath’s Gruhas and Rainmatter Climate. The startup will use the funding to deploy its OB HydraCel bioreactor for on-site hydrogen gas generation in other sectors. 0 0 0 Share 0 Tweet 0 Share 0 Via