Must Read

Drones

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Phones

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Wearables

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Photography

#11 Charles Koch – $50.5 B

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Audio

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Gaming

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Video

#20 Ma Huateng – $38.8 B

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Smart Home

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

Computing

#19 Steve Ballmer – $41.2 B

#18 Rob Walton – $44.3 B

#17 Alice Walton – $44.4 B

#16 Jim Walton – $44.6 B

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