Club Demonstration Services (CDS) is a marketing company that provides in-store product demonstrations and sampling services to Costco customers. CDS is a subsidiary of Acosta, a sales and marketing agency that provides services to consumer packaged goods companies and retailers. CDS operates in the United States, Canada, and Mexico, and employs over 30,000 people. The company was founded in 1988 and is headquartered in Hillsboro, Oregon.