The Paris-based agency won a pitch against Mother, DDB London,This is a Thing (Red Cell Italy), Publicis and KesselsKramer. Its first task is to create a press campaign to launch Diesel's autumn/winter collection.
Diesel, known for its iconoclastic ads, appointed Kessels-Kramer in 2001.
Its work has included the "for successful living" campaign, which featured daydreaming models.
In 2001, Paradiset DDB Stockholm won the Cannes Grand Prix with an African-themed Diesel campaign featuring black models.
Before that, a controversial campaign by Lowe Howard-Spink included images of the Virgin Mary wearing jeans and an overweight, naked woman having liposuction.
Frederic Temin, the president of ER27, said: "Being chosen by Diesel is a very good sign for the French creative value."