In an age where technology has made it almost impossible to switch off entirely from the office, we’d all like to achieve a better work-life balance. But it goes without saying that some workplaces facilitate this more than others. You might strike it lucky, and have a boss who practically throws you out the door at 5.30pm. Or you might find yourself stuck in a company that expects its employees to be contactable and ready to work at all hours.

If a good work-life balance is important to you, it’s worth doing your research before accepting a job at a new company. Which is why we’re always intrigued to read the annual report by Glassdoor, an anonymous careers site where employees can leave scathing or glowing reviews of their workplaces.

Using these reviews, Glassdoor has calculated which companies offer the best work-life balance in the UK.

“Companies are realising that you can get more out of your workforce if you create an environment where people feel it is OK to take time out and be flexible with the working week,” David Whitby, UK Country Manager at Glassdoor, tells Business Insider.

These are the 20 best companies for work-life balance in the UK