Deep Tide TechFlow News, on July 18, according to TechinAsia, Substack recently completed a $100 million funding round led by BOND and The Chernin Group, with participation from Andreessen Horowitz, Klutch Sports Group's Rich Paul, and Skims Body Inc co-founder Jens Grede. After this funding round, Substack's valuation reached $1.1 billion.