From 1997 to 1999, he developed the popular reality television series Big Brother with his production company, John de Mol Produkties.

In 1994, his company merged with Joop van den Ende TV-Producties into Endemol, but it still functioned on its own.

[1] In January 2014, Endemol launched a new reality TV program called Utopia, featuring 15 people given the aim of building up a new community living on a rural property.

[citation needed] The station scored bad ratings, despite scooping the rights of the Eredivisie football league.

In 2007 De Mol decided to close down Tien and sold the channel to RTL Nederland, retaining a share in that company.

The Voice (of America) launched on NBC on 27 April 2011 with De Mol and Mark Burnett as executive producers.