Nishiyama Onsen Keiunkan

705 CE

Oldest operating company, a Japanese inn

Estimated Oldest companies · Verified 2026-10-31 · WWV-MB-001

The hot spring inn Nishiyama Onsen Keiunkan in Yamanashi, Japan, was founded in 705 CE and is still run by the same family line. It is listed by Guinness as the oldest hotel.

Claims of the oldest company depend on the definition used.

Sources

Wikipedia: Nishiyama Onsen Keiunkan
Wikipedia: List of oldest companies