11. One Japanese company existed for 14 centuries.
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According to 2009 data, there are more than 21,000 companies older than 200 years old. The oldest company in the world, more than 14 centuries old, is Kongo Gumi. This construction company was established in 578 and specialized in constructing Buddhist temples. It built a lot of well-known buildings including Osaka castle.
The company survived several wars and hard periods but continued its work. During World War II, it shifted to constructing coffins. After the war, it came back to its main service and started using earthquake-resistant concrete constructions instead of wooden ones.
Only in 2006, due to bankruptcy, the company was bought by another firm.