- CEO
- Kenji Kamiya
- Full Time Employees
- 1,523
- Sector
- Communication Services
- Industry
- Internet Content & Information
- Address
- 1-23-14 Proto Aoi Building Nagoya Japan 460-0006
- IPO Date
- May 1, 2013
- Business
- Proto Corporation (PTOVF), founded in 1977 and headquartered in Nagoya, Japan, provides automobile-related information services focused on new and used cars, parts, and supplies through digital platforms, magazines, and newspapers; its core offerings include the Goo-net portal, Japan's largest used car information site with extensive dealer listings and AI-enhanced features such as chatbots, valuation tools, and inventory optimization services; lifestyle-related information via media and apps; and integrated support for maintenance shops, sheet metal operations, and used car dealerships including Goo KANTEI third-party appraisals and Goo Inspection structural checks covering 344 points. The company operates primarily in Japan, serving consumers, dealers nationwide including expansions into Niigata, Shikoku, and Okinawa, and international markets through subsidiaries like Goonet Exchange for used car exports; it employs around 1,523 people and was a subsidiary of Mugen Co., Ltd. prior to recent changes. In 2025, Proto underwent a major takeover by Foresight Co. Ltd., which completed a tender offer acquiring 68.97% ownership by April, leading to delisting from the Tokyo Stock Exchange Prime Market and Nagoya Stock Exchange Premier Market effective June 16 amid a reverse stock split and share consolidation process that faced legal challenges including a shareholder appeal granted to the Supreme Court; additional developments included a new image character for Goo-net, app enhancements like the My Car Page feature, and partnerships such as with Aichi Mihama Town for tourism initiatives.