The 50 best big companies to work for of 2017, according to employees

That's the idea behind job-hunting and employee-review site Comparably. It asks employees detailed questions about their companies: everything from compensation information to queries like "Are your company's meetings effective?" and "Do you have a mentor at work?"

To generate this list of the 50 best large companies to work for in 2017, Comparably analyzed over 3 million employee ratings on 30,000 US companies to come up with an overall satisfaction rank. Comparably defines a "large" company as one with at least 500 employees, and it based its satisfaction rating only on reviews written in 2017.

To make the list, each company needed at least 25 employee reviews. Companies with employees who answered more questions were weighted more heavily than those with staffers that provided fewer answers.

As you might expect, tech companies dominated the list.