This interactive tool from the Office for National Statistics allows you to see the gender pay gap between the average earnings across a wide range of jobs.  

While the gender pay gap across all sectors and roles is, at 18.1%, the lowest it has ever been, the are large discrepancies in this salary gap across different functions and levels of seniority.  For example in the category of Chief Executives and Senior Officials  women are paid on average 28.7% less than men, and only hold 30% of the positions.  

Search Firms who specialise in filling these highly strategic positions have more power than most to improve these statistics, and I for one am very proud that Invenias' software supports many search teams who are working to tackle the issues of gender equality.