Operating originally out of Kwatinetz' Malibu apartment, the company was described by the Los Angeles Times as "racing through the music industry with the velocity of a bullet train" and by 2000, represented a stable of actors and musicians that had generated more than $1.5 billion in gross revenue.

[4][5][6] During its first incarnation, the company represented Leonardo DiCaprio, Cameron Diaz, Robert De Niro, Kelly Clarkson, Korn, Ice Cube, Snoop Dogg, Dixie Chicks, Linkin Park, Backstreet Boys, Jennifer Lopez, Britney Spears, Limp Bizkit, and DC Pierson, among others.

In addition to the individual successes of their clients, the company was noted for its prescience in melding celebrities with consumer brands and for its role as an architect of the $2.6 billion acquisition of Warner Music by a private equity consortium.

[2][7][9] Financed through Kwatinetz' personal assets, Prospect Park focused on TV and film development and production and included an artist management division and a record company.

As of 2015, the company had projects in development for broadcast, cable and digital platforms which included Black Heart for ABC, Talent for NBC,Tough Love for Amazon, Hard Foul for Showtime, A Midsummer’s Nightmare (Lifetime), Relics (Sony International Networks).