Library Systems & Services
Library Systems & Services (LSSI) is a private for-profit company that manages municipal libraries on an outsourced basis. It is the United States fifth-largest library system. LSSI runs 20 library systems in 80 locations. Its headquarters are in Germantown, Maryland.
LSSI got its start in 1982 with the MINI MARC minicomputer cataloging system, and custom software development for libraries and other library support companies. It expanded into running libraries at federal agencies. In 1997 it began operating public libraries after signing a contract with the Riverside County Library System in California. When ranked by number of branches, it places immediately after Los Angeles County, New York City, Chicago and the City of Los Angeles.