After graduating from college, Osumi joined Recruit (currently Recruit Holdings Co. Ltd.), leading the sales force for over 17 years. In 2006, she joined Lawson, Inc. In 2009, she became the Director of the Franchise Owner Development Department, Development Management Headquarters. In 2012, she was promoted to Deputy Director Vice President. She was in charge of diversity promotion in the Human Resources Office, encouraging women’s success in the workplace. She then became the Senior Executive Manager of the Health Food Business Department, Research and Development Headquarters, Nagatanien Co. Ltd.
In the same year, she joined ChangeWAVE, Inc. and became an advisor.
・Lawson was selected as an enterprise which is exceptional in encouraging women’s success in the workplace, and was awarded the designation “Nadeshiko Brand”
・Lawson won a 2014 Diversity Management Selection 100 award, Ministry of Economy, Trade, and Industry
・Member of the Fuji Conference, Japan IBM Council of Experts
・Alumna of the Institute for Strategic Leadership
・She has given numerous lectures on the topic of diversity