The Chicago operator behind BetRivers turned a casino-floor pedigree into a $1.1 billion online betting business - and it did it while most of its rivals were still burning cash to buy customers.

Audiomob is a London-founded adtech company that pioneered non-intrusive audio advertising inside mobile games. Its SDK lets game developers earn revenue by playing short audio ads without interrupting gameplay, while advertisers reach a large, hard-to-access mobile gaming audience. Founded in 2020 by ex-Google and ex-Facebook engineers Christian Facey and Wilfrid Obeng, the company reaches hundreds of millions of monthly players across 160 countries and has raised roughly $16 million, including a $14 million Series A at a $110 million valuation.