[GotAnyMegadeth]

I felt quite sad to read the fate of the top of that list

> Kongō Gumi Co., Ltd. (株式会社金剛組 Kabushiki Gaisha Kongō Gumi) is a Japanese construction company which was the world's oldest continuously ongoing independent company, operating for over 1,400 years until it was absorbed as a subsidiary of Takamatsu in 2006.

[billmalarky]

The future of Hoshi Inn (#4 on list) is uncertain as well, see my other comment for details https://news.ycombinator.com/item?id=16187837

[TomMarius]

It wasn't absorbed just because, the company has collapsed.