Bertoncelj is active as an advisor, moderator and mentor at CorpoHub group (previously 30Lean), a leading Slovenian company in the field of promoting and accelerating corporate innovation, as well as in the field of cooperation and integration of corporations with startups at home and in the region. Before that he worked as an internal innovator, developer, salesperson and marketer of both products and services in domestic and foreign markets, at companies such as Merkur, Mladinska knjiga, KD Group, Iskra and others.