A number of billionaire families around the world have spread out their wealth among various industries, from tech to retail.

Here are the top 25 richest families, according to data compiled by Bloomberg based on their estimated net worth as of June 2018.

The Top 25 Wealthiest Families in the World

1. Walton Family

The Walton family is worth $151.5 billion. Their wealth came from the founding of Walmart (WMT) - Get Report , the retail stores, in 1962 by Sam and Bud Walton.

2. Koch Family 

The Koch family is worth $98.7 billion and their empire's wealth is derived from Koch Industries, a conglomerate that started out with an oil refinery.

3. Mars Family 

The Mars family is worth $89.7 billion and earned their riches from their stakes in the candy bar maker Mars Inc.

4. Van Damme, de Spoelberch, and de Mevius families

The Van Damme, de Spoelberch and de Mevius families are worth $54.5 billion and derived their wealth from beer conglomerate Anheuser-Busch InBev (BUD) - Get Report .

5. Dumas Family 

The Dumas family is worth $49.2 billion and derives its wealth from the Hermès (HESAY) company, a luxury goods company.

6. Wertheimer Family 

The Wertheimer family is worth $45.6 billion and generates its wealth from Chanel, the fashion company founded by Coco Chanel.

7. Ambani Family

The Ambani family is worth $43.3 billion and its wealth comes from Reliance Industries, a conglomerate in India.

8. Quandt Family

The Quandt family is worth $42.7 billion and its fortune comes from its nearly 50% stake in BMW, the car manufacturer, and stakes in Gemalto, a security software company, as well as Logwin, a German logistics company.

9. Cargill-Macmillan Family

The Cargill-Macmillan family is worth $42.3 billion and their wealth is inherited from William W. Cargill, who founded Cargill, an agribusiness behemoth.

10. Boehringer and von Baumbach Family

The Boehringer and von Baumbach family is worth $42.2 billion and their money comes from operating Boehringer Ingelheim, a German pharmaceutical company.

11. Albrecht Family

The Albrecht family is worth $38.8 billion and owns Aldi, a German grocery company and a stake in U.S. grocer Trader Joe's.

12. Mulliez Family

The Mulliez family is worth $37.5 billion and owns Auchan, a massive European supermarket chain. The family also has controlling stakes in Leroy Merlin, a home improvement chain, and Decathlon, a sports equipment retailer.

13. Kwok Family

The Kwok family is worth $34 billion and runs the Hong Kong property developer, Sun Hung Kai Properties.

14. Cox Family

The Cox family is worth $33.6 billion and operates Cox Enterprises, which includes newspapers, radio stations, cable, broadband and automotive.

15. Pritzker Family

The Pritzker family is worth $33.5 billion and owns Hyatt (H) - Get Report hotels.

16. Lee Family

The Lee family is worth $30.9 billion and operates Samsung  (SSNLF) , the electronics giant.

17. Rausing Family

The Rausing family is worth $30.9 billion and its wealth is derived from running Tetra Laval, a packaging conglomerate.

18. Thomson Family

The Thomson family is worth $30.9 billion and its wealth comes from its 64% stake in Thomson Reuters (TRI) - Get Report , a financial data and services provider, and stakes in the Globe and Mail newspaper in Toronto and telecommunications company Bell Canada.

19. Johnson Family of SC Johnson

The Johnson family is worth $28.2 billion and owns SC Johnson, which makes household products such as Windex, Pledge and Glade.

20. Dassault Family

The Dassault family is worth $27.8 billion and and their riches come from Dassault Group (AM) - Get Report , a behemoth that owns newspapers, real estate, military aircraft and software businesses.

21. Duncan Family

The Duncan family is worth $26 billion and their wealth comes from Enterprise Products Partners (EPD) - Get Report , an oil and gas company.

22. Hoffman-Oeri Family

The Hoffman-Oeri family is worth $25.1 billion and family members still have a 9% stake in Roche Holding (RHHBY) , the pharmaceutical giant.

23. Hearst Family

The Hearst family is worth $24.5 billion and the descendants' wealth comes from the foundation that runs Hearst, which owns TV and radio stations, newspapers, magazines, plus stakes in cable channels.

24. Lauder Family

The Lauder family is worth $24.3 billion and derived its wealth from the Estée Lauder (EL) - Get Report company that owns 30 brands of cosmetics and perfumes.

25. Ferrero Family

The Ferrero family is worth $22.9 billion and receives its wealth from Ferrero Group, which manufactures Nutella and also owns Nestle's (NSRGY) candy business in the U.S.

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