| CLIFTON EXPLORATION, INC. | — | 101984 | 1981-06-11 | Dissolved | BUILDING JACKSON |
| CLIFTON FRANKS TRUCKING, INC. | — | 101985 | 1981-10-06 | Dissolved | Mantachie |
| CLINIC SERVICES, INC. | — | 500651 | 1981-12-15 | Dissolved | |
| CLINT FULTON AND SON, INC. | — | 102015 | 1981-09-24 | Dissolved | OCEAN SPRINGS |
| CLINTON CAT FISH HOUSE, INC. | — | 102023 | 1981-06-03 | Dissolved | |
| CLINTON KWIK STOP, INC. | — | 102042 | 1981-07-22 | Dissolved | |
| CLINTON NEWCOMERS CLUB, INC. | — | 102044 | 1981-06-17 | Active | CLINTON |
| CLINTON SWIM AND TENNIS CLUB, INC. | — | 500652 | 1981-11-19 | Dissolved | |
| CLOUD NINE SLUMBER PRODUCTS, INC. | — | 500653 | 1981-11-04 | Dissolved | |
| CLOUD'S APPLIANCE CENTER, INC. | — | 102059 | 1981-08-27 | Dissolved | VICKSBURG |
| CLOWE PARTS & SERVICE, INC. | — | 500655 | 1981-12-31 | Dissolved | |
| CLUB INTERNATIONAL, INCORPORATED | — | 502801 | 1981-10-28 | | |
| CLYDE O. HAGOOD, JR., M.D., P.A. | — | 102089 | 1981-10-01 | Dissolved | |
| COAHOMA COMMUNITY COLLEGE AND AGRICULTURAL HIGH SCHOOL FOUNDATION | — | 727560 | 1981-07-15 | Active | CLARKSDALE |
| COAHOMA JUNIOR COLLEGE AND AGRICULTURAL HIGH SCHOOL FOUNDATION | — | 102126 | 1981-07-15 | | CLARKSDALE |
| COAHOMA JUNIOR COLLEGE AND AGRICULTURAL HIGH SCHOOL NATIONAL ALUMNI ASSOCIATION, INC. | — | 102125 | 1981-07-15 | | CLARKSDALE |
| COALSTREAM PIPELINE COMPANY, INC. | — | 102131 | 1981-05-22 | Revoked | TULSA |
| COALVILLE GROCERY, INC. | — | 102132 | 1981-09-14 | Dissolved | |
| COAST FENCE COMPANY, INC. | — | 102171 | 1981-03-30 | Dissolved | |
| COAST FINANCIAL SERVICES, INC. | — | 102172 | 1981-10-12 | Dissolved | OCEAN SPRINGS |
| COAST INDUSTRIAL CORPORATION | — | 102177 | 1981-01-28 | Merged | |
| COAST ONCOLOGY/HEMATOLOGY, P.A. | — | 617321 | 1981-07-07 | | BILOXI |
| COAST UROLOGICAL ASSOCIATION, P.A. | — | 102201 | 1981-10-01 | Dissolved | GULFPORT |
| COAST WASTEWATER & SEPTIC SYSTEMS, INC. | — | 102203 | 1981-04-06 | Dissolved | SAUCIER |
| COAST WATERWORKS CONSULTANTS, INC. | — | 102205 | 1981-09-24 | Dissolved | |
| COASTAL INDUSTRIES OF MOBILE, INC. | — | 102228 | 1981-05-19 | Revoked | MOBILE |
| COASTAL INTERSTATE ALLIANCE, INC. | — | 500656 | 1981-11-12 | Active | BILOXI |
| COASTAL PAINTING & GENERAL CONTRACTORS, INCORPORATED | Construction | 102241 | 1981-06-26 | Active | GAUTIER |
| COASTAL PLAINS EQUIPMENT OF HAMILTON, MISSISSIPPI, INC. | — | 102244 | 1981-02-12 | Dissolved | |
| COASTAL RESEARCH OF MISSISSIPPI, LTD. | — | 508762 | 1981-01-09 | Active | APALACHICOLA |
| COASTIANS AGAINST NUCLEAR DISPOSAL, INC. | — | 431312 | 1981-04-14 | | BILOXI |
| COASTIANS FOR CLEAN ENERGY, INC. | — | 102261 | 1981-04-03 | Active | BILOXI |
| COASTING, INC. | — | 102262 | 1981-04-17 | Dissolved | GULFPORT |
| COCHRANE ROOFING AND METAL CO., INC. | Construction | 102289 | 1981-07-13 | Revoked | Gulfport |
| COIN-OP ENTERPRISES, INC. | — | 500659 | 1981-12-21 | Revoked | MEMPHIS |
| COLDWELL BANKER COMMERCIAL GROUP, INC. | — | 500661 | 1981-12-16 | | Gulfport |
| COLE & STRICKLAND, D.D.S., P.A. | — | 102337 | 1981-10-01 | Dissolved | |
| COLEMAN & ASSOCIATES, LTD. | — | 102342 | 1981-04-14 | Dissolved | HAZELHURST |
| COLEMAN TELEPHONE SERVICE, INC. | — | 517821 | 1981-04-13 | Dissolved | |
| COLEMAN'S PAINT & HARDWARE CO., INC. | — | 102354 | 1981-07-30 | Dissolved | GULFPORT |
| COLES CREEK HUNTING CLUB, INC. | — | 102358 | 1981-08-31 | Active | NATCHEZ |
| COLLECTABLES, INC. | — | 102372 | 1981-05-26 | Dissolved | |
| COLLECTOR CAR COMPANY, INC. | — | 102374 | 1981-08-20 | Dissolved | JACKSON |
| COLLINS CABLE T.V., INC. | — | 500573 | 1981-12-04 | Dissolved | |
| COLLINS J-MAC'S CO., INC. | — | 102414 | 1981-03-06 | Dissolved | |
| COLLINSVILLE, MS. DRUGS, INC. | Retail trade | 500575 | 1981-10-26 | Active | Meridian |
| COLOM COMMUNICATIONS CORPORATION | — | 102429 | 1981-10-06 | Dissolved | |
| COLOM, MITCHELL & COLOM, P.A. | — | 102430 | 1981-09-21 | | COLUMBUS |
| COLONIAL BUILDING & SUPPLY CO., INC. | — | 102444 | 1981-03-30 | Dissolved | |
| COLONIAL POOL AND SERVICE CO., INC. | — | 102464 | 1981-06-15 | Dissolved | |