Marketing research suppliers can be classified into internal suppliers and external suppliers. An internal supplier is a marketing research department located within the firm where the research staff members are employees of the firm. External suppliers can be further classified into full-service and limited-service suppliers. Full-service suppliers can be classified as syndicated services, standardized services, customized services, and Internet services. Limited-service suppliers can be classified as field services, coding and data entry, data analysis, analytical services, and branded products.