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But the people who understand the CEO best are the company's employees that work under the person's leadership every day.
So job-hunting site Glassdoor sifted through its massive stores of company reviews to create a list of the Top 50 Best CEOs. All of the CEOs on this list received at least 100 reviews from employees during the past year.
Tech CEOs made up a little under half the list, but they dominated the Top 5, including one surprise CEO you may not know.