Charlie Castell is the CEO and co-founder of PubRev+, a one of a kind games studio, CTV film supplier and social causes advertiser.

PubRev+ has a portfolio of 20+ mobile games. The company's first app, Rebuild Ukraine, built in Cherkasy, Ukraine, raises money for World Kitchen and Save the Children, by gamifying charitable giving.

PubRev+ has direct connections to worldwide brand advertisers and uses its unique ad serving capabilities and sales team to bring demand that no one else can reach.

PubRev+ represents multiple film studios, serving over 6BN CTV requests per day in the US. 

In 2019 Castell co-founded Face The Music to bring people into activism through music, and in 2020 he started Optimize The World, with his wife, to use the power of digital advertising and content to shape culture, for which they won a Webby. in 2024 his album, Beautiful Apocalypse, was widely praised in the music press.

He has consulted for the Adam Schiff campaign, been shortlisted for a student academy award, and previously led the ads business at Warner Bros TV, Scopely and TextNow.

He is co-lead of the Publisher Coalition, to create better standards and improve the in-app industry for everyone.