Bill and Melinda Gates filed for divorce after 27 years of marriage. They will, however, continue with their philanthropic work together. Couple’s The Bill & Melinda Gates Foundation, one of the powerful and influential NGOs in global public health, spent over $50 bn in the last 20 years in the fight against poverty and disease. Bill (65) and Melinda 56) met after she joined Microsoft as a product manager. The couple married in Jan 1994 in Hawaii, after dating a few years.