The Association of Canadian Advertisers (ACA) is a national organization established in 1914, dedicated to representing the interests of Canadian marketers. Its membership is exclusive to marketers, allowing the ACA to advocate effectively without conflicts from agencies or media suppliers. The organization focuses on maximizing return on investment (ROI) and promoting positive social change within the marketing industry.

The ACA offers a range of services to enhance marketing effectiveness for its members. This includes conducting foundational studies to provide insights into marketing trends, helping marketers stay updated with evolving best practices, and offering consultation support for navigating complex challenges. The ACA also recognizes excellence in advertising through awards and likely hosts industry events to facilitate networking and knowledge sharing among its members.