He had a gig mowing lawns at 11. By 25, he had turned it into a multimillion-dollar landscaping business.

Cody Kuebler, now 25, began mowing his neighbours' lawns at age 11 for about $25 per job, first with an aging push mower and later with one his father gave him for his birthday. A move at 14 forced him to rebuild his customer base from scratch, and he later hired friends to take on more customers and expanded into snow removal during winter. He eventually earned enough to invest in riding lawn mowers with wagons attached. He now oversees millions of dollars' worth of equipment and works six days a week.

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