Sacred Heart League
- Roman Catholic organization serving the nine northern counties of Mississippi in parish, education, housing and social ministries.
- http://www.shl.org/

Mid-Mississippi Development District
- Providing information on available buildings and sites for industrial expansion and relocation.
- http://mmdd.org/

Sunshine Shelter Abused Children Shelter
- An emergency shelter for abused and neglected children in MS Department of Human Services Region V, covering 13 counties.
- http://www.sunshineshelter.org

North Mississippi Industrial Development Association
- Organization of electrical power distributors serving most of northern and northeastern Mississippi, organized to generate business and industry prospects. Information about the region, community resources, and available sites and incentives.
- http://www.nmida.com/

Region 8 Mental Health Services
- Provider of services for people with developmental disabilities and treatment and prevention for mental and emotional problems in Rankin, Madison, Simpson, and Copiah Counties.
- http://www.region8mhs.org/

Northeast Mississippi Planning and Development District
- Serves county and municipal governments in Alcorn, Benton, Marshall, Prentiss, Tippah, and Tishomingo counties by providing technical assistance and information.
- http://www.nempdd.com/

Golden Triangle Planning and Development District
- Regional agency serving local governments in Choctaw, Clay, Lowndes, Noxubee, Oktibbeha, Webster, and Winston counties with economic development, E-911, childcare, senior services, and related functions.
- http://www.gtpdd.com/

Southern Mississippi Planning and Development District
- Regional planning entity assisting 15 county and 37 municipal governments in Covington, Forrest, George, Greene, Hancock, Harrison, Jackson, Jefferson Davis, Jones, Lamar, Marion, Pearl River, Perry, Stone and Wayne Counties.
- http://www.smpdd.org/

Central Mississippi Planning and Development District
- Regional planning organization serving the governments of Copiah, Hinds, Madison, Rankin, Simpson, Warren and Yazoo counties. Information about planning, economic development, workforce training, agency on aging, and other programs.
- http://www.cmpdd.org/

Three Rivers Planning and Development District
- Non-profit regional intergovernmental organization that serves Calhoun, Chickasaw, Itawamba, Lafayette, Lee, Monroe, Pontotoc, and Union counties in economic development, solid waste management, health and aging, and related services.
- http://www.trpdd.com/