On April 6, a new law came into play that will force UK companies with more than 250 employees to publish data about their gender pay gap. The legislation will affect around 9,000 companies. In fact, data from recruitment company Hired's recent Equal Pay Day report found that women are paid 9 percent less than their male colleagues in the tech industry. And in two of every three instances where a man and woman are offered the same role at the same company, the woman is offered less. But the gender pay gap does not only stem from women being paid less than men for the same work. Many are not being given the opportunity to do that work in the first place. Women returning from maternity leave earn a third less than men, according to a recent report by the Institute for Fiscal Studies, and many are pressured into leaving high-paid jobs.