Entrepreneurship was once considered a man’s domain, but the tide has shifted: More than 9 million U.S. firms are now owned by women, employing nearly 8 million people and generating $1.5 trillion in sales, according to 2015 data from the National Association of Women Business Owners. Although more women are embracing entrepreneurship, they often face challenges not typically shared by their male counterparts. To shed light on some of these disparities, female CEOs spoke with Business News Daily about the key challenges women entrepreneurs face and how to overcome them.