International Consortium of Investigative Journalists

The World’s Best Cross-Border Investigative Team

Journalist Profile

Toshihiro Okuyama

Toshihiro Okuyama, Japan, is a reporter for the newspaper Asahi Shimbun.

In more than two decades with the newspaper, Okuyama has written about public prosecutors, the judiciary system, Japan's Ministry of Finance. He has investigated a number of financial scandals and wrote the books "Power of Whistleblowing: What Would Whistleblower Protection Act Protect?" and “Reportage TEPCO: A Month of Nuclear Crisis.” He’s coauthored other books, including "Giso Ukeoi – Disguised Employment Contracts: Workers in the Gap- Widening Society." Okuyama was a Scholar in Residence at the Investigative Reporting Workshop at American University. He also is a part-time lecturer at the Graduate School of Journalism of Waseda University, in Tokyo.

ICIJ Projects

Stay Informed

Subscribe to our email newsletter and be the first to view our ground-breaking investigations and multimedia.

Sign Up


The ICIJ is dedicated to ensuring all reports we publish are accurate. If you believe you have found an inaccuracy let us know.

Support Our Work

Independent, fearless investigative journalism is expensive and ICIJ relies on your support.

Please consider becoming a sponsor.