Grenovi Mobility Sp. z o.o. serves as the exclusive and authorized agent of Hobby-Wohnwagenwerk Ing. Harald Striewski GmbH, headquartered in Fockbek, in selected Central and Eastern European and Baltic countries. This enterprise is dedicated to supporting, coordinating, and developing the Hobby brand's caravanning business in Poland, as well as in the Czech Republic, Slovakia, Hungary, Romania, Bulgaria, Croatia, Slovenia, Lithuania, and Latvia.

Grenovi Mobility actively promotes Hobby products, organizes various promotional activities such as participation in the Caravans Salon Poznań fair, and maintains a positive brand image. The offer includes caravans, motorhomes, and camper vans for the 2025 season.

Hobby is recognized as the most popular and frequently purchased caravan brand in Europe, owing to its high-class standard equipment, spacious interiors, quality craftsmanship, and functionality of the vehicles offered.