CQS is one of the leading companies in the field of Customer Relationship Management services, providing customer service, customer retention and new customer acquisition services, while developing and supporting sales techniques in a variety of channels and approaches. It cooperates with the largest companies and organizations operating in Greece, with emphasis on the telecommunications, gambling, IT, energy, retail, as well as banking and insurance sectors. It employs more than 1150 employees throughout Greece and is one of the "Leading Employers in Greece", among the 500 companies with the highest number of employees, while it is among the 100 companies with the highest staff growth.