Since 1967, Sigma Marketing has been serving the calendar promotion needs of businesses large and small. We specialize in the development, production and administration of comprehensive custom calendar programs. In recent years, Sigma expanded our product line as a distributor for the Advertising Specialty Institute (ASI) to provide additional promotional items to complement calendar programs or provide our clients with additional specialty merchandise. We have created a niche for ourselves, and we are proud of our reputation as a provider of quality products and personalized service.