Amelie Voigt Trejes

The youngest billionaire in the world, Amelie Voigt Trejes, 20, is a Brazil national with a net worth of $1.1 billion, according to Forbes.

Her wealth is sourced from her 2% stake in WEG, the largest manufacturer of electrical motors in Latin America, a company cofounded by her late grandfather.

WEG, a publicly traded multinational with manufacturing facilities in more than ten countries, generates roughly US$7 billion in annual revenue.

Amelie does not hold a board seat or any executive role at the company, though her siblings are also significant shareholders.

Johannes von Baumbach

Johannes von Baumbach, 20, with net worth of $6.6 billion, is the world’s second youngest billionaire. He is an heir to the Boehringer Ingelheim fortune, tied to the company widely known as the world’s largest privately held pharmaceutical firm.

Boehringer Ingelheim was founded in 1885, initially supplying ingredients to pharmacies, textile merchants and the food industry.

Today, the company employs about 53,000 people and operates in 130 markets. Its best-known medicines are used to treat chronic obstructive pulmonary disease, support anti-coagulation and manage type 2 diabetes.

Livia Voigt de Assis

Lívia Voigt de Assis, 21, is among the largest individual shareholders of WEG.

She owns a 3.1% stake in the company, giving her a net worth of $1.4 billion.

Clemente Del Vecchio

Clemente Del Vecchio, 21, is one of six children of Leonardo Del Vecchio, the late chairman of France and Italy-based EssilorLuxottica, the world’s largest eyeglasses company.

The young Italian’s wealth is at $6.8 billion this year, highest since he was recognized as a billionaire in 2023 when he had $3.5 billion in wealth.

Following his father’s death in 2022, he inherited a 12.5% stake in Delfin, the Luxembourg-based holding company, alongside his stepmother and six siblings.

In addition to its controlling stake in EssilorLuxottica, Delfin holds shares in insurer Generali, banks Monte dei Paschi di Siena and UniCredit, and real estate developer Covivio.

Kim Jung-youn

Kim Jung-youn, 22, is the younger daughter of Kim Jung-ju, the late founder of South Korean–Japanese gaming company Nexon.

Her net worth is $1.7 billion, coming from her 9% stake in the firm, which offers gamers over 80 live games including hits like MapleStory, KartRider and Dungeon & Fighter.

Neither Jung-youn nor her older sister Jung-min has been involved in Nexon’s operation.