Sign in

Private company

KOIS

KOIS is a South Korean advertising and software company based in Seoul, founded in 1999.1

Last updated Oct 21, 2026.

Overview

Apr 13, 1999Founded1

See how the biggest companies compare on our leaderboards

Timeline

  1. Apr 13, 1999Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1