Cultural Intelligence Center is an innovative, research-based training and consulting firm from Michigan. They promote an accurate picture of intercultural communication through their brief online and offline courses. I like how they focus on individuals, businesses, and government separately. You can take an assessment to measure your cultural intelligence (CQ) level, choose a convenient course and then get professional credentials.
I personally have never attended their events, but I’ve heard many positive reviews. While I wouldn’t vouch, check it out for yourself.