Invado International is a direct marketing company headquartered in Chagrin Falls, Ohio, that offers consumers the ability to save on products and services they use and purchase every day. Invado markets the online group buying site Referdia, an energy op... moreInvado International is a direct marketing company headquartered in Chagrin Falls, Ohio, that offers consumers the ability to save on products and services they use and purchase every day. Invado markets the online group buying site Referdia, an energy option in deregulated markets with Invado Energy, and travel discounts with Invado Travel Club.