This research was conducted in Mex Barlian Dirgantara Pekanbaru, located on Meranti Street, Labuh Baru Timur Village, Payung Sekaki District. The purpose of this study was to determine the effect of relationship marketing and service quality on customer loyalty in the use of goods delivery services at PT. Mex Barlian Dirgantara Pekanbaru. Relationship marketing and service quality (X1-X2) …