Institutions
- Central Mississippi Correctional Facility
- Delta Correctional Facility
- East Mississippi State Hospital
- East Mississippi Correctional Facility
- Federal Correctional Institution
- Issaquena County Correctional Facility
- Jefferson/Franklin Correctional Facility
- Leake County Correctional Facility
- Marion/Walthall Correctional Facility
- Marshall County Correctional Facility
- Mississippi Department of Corrections
- Mississippi Department of Human Services
- Mississippi School for the Blind
- Mississippi School for the Deaf
- Mississippi State Hospital
- South Mississippi Correctional Institute
- Wilkinson County Correctional Facility
- Winston/Choctaw County Regional
- Youth Challenge Program
Law / Law School Libraries
- Mississippi State Law Library
- Lowndes County Courthouse
- Mississippi College School of Law
- Mississippi Law Enforcement Officer’s Training Academy
- Phelps Dunbar
- University of Mississippi
- Jackson County Public Law Library
Special Libraries
- Baptist Health Systems – Health Services Library
- Beauvior – Jefferson Davis Presidential Library
- Biloxi/Gulfport VA Medical – Information Center
- Catholic Diocese of Jackson – Archives
- Central Mississippi Medical Center – Library
- G.V. (Sonny) Montgomery VA Medical Center- Medical Library
- Gulf Coast Research Laboratory – Gunter Library
- Harrison County Law Library
- Lauren Rogers Museum of Art – Reference Library
- Magnolia Community Service Complex – Consumer Health Library
- Magnolia Regional Health Center – Medical Library
- Memorial Hospital at Gulfport – Education & Research Library
- Memorial Hospital at Gulfport – Robert L. Burman Medical Library
- Merit Health Rankin- Health Library
- Mississippi College – Leland Speed Library – Mississippi College Archives – MS Baptist Historical Commission
- Mississippi Department of Archives & History- Archives and Library Division
- Mississippi Department of Environmental Quality – Water, Geology, Land
- Mississippi Department of Mental Health – Library
- Mississippi Legislature – Mississippi Legislative Reference Bureau
- Mississippi Legislature – PEER Committee Library
- Mississippi Methodist Rehabilitation, Center – Medical Library
- Mississippi Museum of Art – Howorth Library
- Mississippi Museum of Natural Science – Science Library
- Mississippi State University – Architecture Library
- Mississippi State University – College of Veterinary Medicine Branch Li
- Mississippi State University – Delta Research & Extension Center Library
- National Marine Fisheries Service – Mississippi Laboratories Library
- North Mississippi Health Services – Resource Center
- North Mississippi Regional Center – Library
- Parkview Regional Medical Center – Medical Library
- Reformed Theological Seminary – Library
- Rush Foundation Hospital – Rush Medical Library
- Singing River Genealogy-Local History Library
- Singing River Hospital – Medical Library
- South Mississippi Regional Center – Library
- St. Dominic-Jackson Memorial Hospital – Luther Manship Medical Library
- Sun Herald – Sun Herald News Library
- United States Air Force – Columbus Air Force Base Library
- United States Air Force, Keesler Air Force Base – McBride Library
- United States Army , Corp of Engineers – Engineer Research & Development Center
- United States Army , Corp of Engineers – Vicksburg District – Technical Library
- United States Navy – Naval Air Station Library
- United States Navy – Naval Construction Battalion Center
- United States Navy , Navy Oceanographic Office – Matthew Fontaine Maury Oceanographic Lib
- University of Mississippi Medical Center- Rowland Medical Library
- Vicksburg National Military Park – Military Park Library
- Vicksburg-Warren County Historical , Society Museum – McCardle Research Library