Yoshiko Shinohara

is a Japanese businesswoman and philanthropist. Shinohara founded Persol Holdings (formerly Tempstaff) in 1973, leading the company until she retired while taking on the role of chairman emeritus in 2016. In 2017, she became the first woman in Japan to become a self-made billionaire.

Early life and education Shinohara was born in 1934, to a school headmaster and a midwife. She had a tough upbringing growing up during World War II and her father died when she was only 8. She attended public schools, eventually graduating from Yokohama Eiri Girls High School . She got married shortly after finishing high school when she was 20 but left her husband shortly thereafter realizing "she would rather not be married."

Career In 1973, Shinohara founded Tempstaff from a one-bedroom apartment after returning to Japan after living abroad in Europe and Australia where she saw women working as temps. She was 38 and had recently divorced her husband. At the time, it was unusual for Japanese women to do paid work let alone start a company and, initially, her company was in violation of the law which did not allow for temporary employment. The company was initially staffed entirely by women but began hiring men in 1988. , she had an 11% stake in Persol Holdings. , she became Japan's first self-made woman billionaire as shares in her company boomed. Forbes estimated her net worth at $965 million in 2023. She is Japan's only self-made billionaire.

Philanthropy and advocacy In 2016, she donated $140 million of stock to endow the Yoshiko Shinohara Memorial Foundation which would fund scholarships for students studying to become nurses, social worker or day-care staff.

She is an advocate for government policies that encourage more women to enter the workforce.