Private company
Ishiyama Gateway Holdings
Ishiyama Gateway Holdings is a Japanese company based in Tokyo, founded in 1982.1
石山Gateway Holdings株式会社（Ishiyama Gateway Holdings Inc.）は、かつて存在した日本の持株会社。2 From the Japanese Wikipedia, CC BY-SA 4.0
Last updated Oct 21, 2026.
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2