Digital 55 is a custom digital communications and marketing company with innovative cloud solutions providing business tools, intelligence, big data, and soft data solutions. Started in 2004, OnLetterhead was launched as a branded 1:1 email tool for Microsoft outlook. OnLetterhead remains a foundational product, however, now Digital 55 is redesigned and enhanced by new ownership investing into rebuilding the OnMarketplace platform and by connecting new products for small and medium-size businesses. 419-724-0228 ext 202.