Legal and General has been challenging employers to do more about mental health in the workplace following a visit from Labour party leader Ed Miliband.
Miliband visited the provider this morning ahead of his speech today on mental health.
According to reports, the Labour leader will criticise Jeremy Clarkson and Janet Street-Porter today for demeaning people with mental health problems.
Nigel Wilson, chief executive of L&G, said: "People shouldn't suffer in silence about mental health, whether at work or at home.
"We've been working to improve support for mental health in the workplace for over ten years. We work with a number of specialist companies to deliver good quality support for our staff and to help other employers get the right support for their staff."
L&G launched a campaign called Stress in the City in September to highlight awareness of mental health in the work place.
It aims to encourage employers and employees, particularly in financial services, to talk about mental health in the workplace.
Wilson added: ""We look after almost 200,000 employees in all sorts of different sectors, and know that if we intervene early, we can get 74% of people back to work in a year. Specialist treatment like Cognitive Behavioural Therapy can help people not just to come back to work but to stay at work in the first place."
The Health & Safety Executive's Labour Force Survey estimates that 10.8m working days were lost in 2010/2011 to mental health issues such as stress, depression and anxiety.