| Company | Category | Area | Address | Web | E-mail | Contact person |
| HARRISON COUNTY COURT DEPT | Court | Mississippi | PO BOX 235, BILOXI, Harrison, Mississippi, 39533-0235, USA |
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Gayle Parker |
| HARRISON COUNTY COURT JUDGES | County Government-Courts | Mississippi | 730 WASHINGTON LOOP, BILOXI, Harrison, Mississippi, 39530-3854, USA |
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Gayle Parker |
| HARRISON COUNTY CWC | Correctional Institution | Mississippi | 3820 8TH AVE, GULFPORT, Harrison, Mississippi, 39501-7130, USA |
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Nickie Simmons |
| HARRISON COUNTY DATA PROC | Government Offices-County | Mississippi | 1801 23RD AVE, GULFPORT, Harrison, Mississippi, 39501-2964, USA |
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Sue Shipman |
| HARRISON COUNTY DEPT HUMN SVCS | Administrative Social/manpower | Mississippi | PO BOX 453, BILOXI, Harrison, Mississippi, 39533-0453, USA |
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Rhonda White |
| HARRISON COUNTY DEV COMMISSION | Government Offices-County | Mississippi | 2510 14TH ST, GULFPORT, Harrison, Mississippi, 39501-1947, USA |
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| HARRISON COUNTY DIST ATTORNEY | County Government-Legal Counse | Mississippi | 730 DR MARTIN LTHR KNG JR BLVD, BILOXI, Harrison, Mississippi, 39530-3854, USA |
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Mark Ward |
| HARRISON COUNTY DISTRICT ATTY | County Government-Legal Counse | Mississippi | 1801 23RD AVE, GULFPORT, Harrison, Mississippi, 39501-2964, USA |
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Cono Caranna |
| HARRISON COUNTY ELECTION COMM | Government Offices-County | Mississippi | 2600 24TH AVE, GULFPORT, Harrison, Mississippi, 39501-4938, USA |
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Toni Jo Diaz |
| HARRISON COUNTY EMERGENCY COMM | Government Offices-County | Mississippi | 15309 COMMUNITY RD # B, GULFPORT, Harrison, Mississippi, 39503-3510, USA |
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