Junior William Joyant

Nice-based entrepreneur, founder of Oneera and Teufy

Junior William Joyant is a 22-year-old entrepreneur from Nice. He founded Teufy, a going-out app listing parties, festivals and deals on the French Riviera, then Oneera, a company that builds real-time maps of festivals, clubs and other venues open to the public.

Before starting his companies, he worked for Taxi Nice Riviera and Riva Boat Services in Saint-Tropez, then ran VIP operations, backstage and guest services at major Cannes nightlife venues.

He holds a master's degree in cybersecurity and is studying for a master's in event management. He has also invested in two agencies, one building apps and software, the other organising private events from Monaco. His stakes are valued at between €2.5 million and €4 million.