The gap between what women and men are paid widened in favour of men at over 170 organisations in Scotland last year, including prominent companies such as Ineos, Babcock, Farmfoods and Brewdog.
34 Scottish firms have reported gender pay gaps larger that the Scottish national average.
Ferret Fact Service takes a look at the pay gap as new rules come into force requiring big companies to disclose their gender inequality figures.
Nicola Sturgeon pledged to deliver gender balanced boards on all Scotland's public bodies in 2015. Since then 80 women have joined the board room, but many public bodies still typically pay women far less than men.