"Japan has 21,066 companies that have been in business for at least 100 years"
Source: Over 20,000 Japan Firms Older Than 100
Tuesday, August 18, 2009
Nikkei
http://www.nni.nikkei.co.jp/e/fr/tnks/Nni20090818D17HH197.htm
Further reading:
Get up to speed with Asia fast
Study Abroad Japan in 2010