10 CEOs who didn't find success until later in life

Not all CEOs were as young as Mark Zuckerberg when their businesses took off.

Some of the biggest names in business didn't have their million-dollar ideas until their late 30s or past their 40s.

CEOs like Ray Kroc (McDonald's), Sam Walton (Walmart), and Robin Chase (Zipcar) all founded their companies after a series of setbacks in their youths.

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Many business leaders found success early in life, some before turning 30 (think Mark Zuckerberg or Jack Dorsey). Other chief executives, however, didn't get a big break until after 30 or 40.

Many of them worked odd jobs before they found their true calling, or they struggled as entrepreneurs for years before a business idea took off. Despite many setbacks, entrepreneurs like Ray Kroc (McDonald's), Sam Walton (Walmart), and Robin Chase (Zipcar) all made their businesses successful.

Here are 10 CEOs who didn't find success until later in life.