| WILLIAM M. ROSS, M.D.P.A. | — | 573449 | 1981-04-20 | Dissolved | CORINTH |
| WILLIAM MORRIS & ASSOCIATES, P.A. | — | 406738 | 1981-07-30 | | JACKSON |
| WILLIAM MORRIS FINANCIAL SERVICES, P.A. | — | 661278 | 1981-07-30 | | JACKSON |
| WILLIAM O. BARNETT, M.D., P.A. | — | 406740 | 1981-05-05 | Dissolved | |
| WILLIAM P. WARFIELD, M.D., P.A. | — | 406743 | 1981-07-29 | Dissolved | |
| WILLIAM PIERCE & SON, INC. | — | 406744 | 1981-06-30 | Dissolved | WALNUT GROVE |
| WILLIAMS 1980 EXPLORATION, LTD. | — | 406797 | 1981-03-30 | Active | Gulfport |
| WILLIAMS LAND AND CATTLE COMPANY, INC. | — | 406785 | 1981-10-14 | Dissolved | |
| WILLIAMS LAUNDRY, INC. | — | 507817 | 1981-12-03 | Dissolved | MOSS POINT |
| WILLIAMS MERCHANDISE, INC. | — | 406793 | 1981-09-09 | Dissolved | |
| WILLIAMS PAVING COMPANY, INC. | — | 406798 | 1981-09-18 | Dissolved | |
| WILLIAMS TELECOMMUNICATIONS SYSTEMS, INC. | Wholesale trade | 615428 | 1981-12-29 | Revoked | Gulfport |
| WILLIAMS TEMPLE HOLINESS CHURCH, INC. | — | 406804 | 1981-02-18 | Active | MOSCOW TN |
| WILLIAMS-MCWILLIAMS CO., INC. | Professional services | 406791 | 1981-08-17 | Canceled | Gulfport |
| WILLIAMS-PICKETT-BROWN GENERAL CONTRACTORS, INC. | — | 406799 | 1981-08-24 | Revoked | VIDALIA |
| WILLIE'S AUTO RECON CENTER, INC. | — | 406823 | 1981-05-29 | Dissolved | |
| WILLMAN OFFICE SUPPLY, INC. | — | 229334 | 1981-06-05 | | |
| WILLMAN'S OFFICE SUPPLY, INC. | — | 406835 | 1981-06-05 | Dissolved | CARRIERE |
| WILLOW BEND, INC. | Agriculture and forestry | 406840 | 1981-01-07 | Active | CLEVELAND |
| WILSON AND GROSS ENTERPRISES, INC. | — | 229378 | 1981-04-20 | Revoked | Gulfport |
| WILSON BUILDERS OF VICKSBURG, INC. | — | 406860 | 1981-10-05 | Dissolved | Vicksburg |
| WILSON FOODS CORPORATION | — | 406872 | 1981-07-13 | Canceled | Gulfport |
| WILSON ICE & EQUIPMENT COMPANY | — | 406878 | 1981-10-06 | Dissolved | |
| WILSON TRANE SERVICE AGENCY, INC. | — | 502652 | 1981-11-30 | Canceled | MEMPHIS |
| WILSONIA AGRICULTURAL AND INDUSTRIAL DEVELOPMENT CORPORATION | — | 229411 | 1981-03-27 | | |
| WILTEL COMMUNICATIONS SYSTEMS, INC. | Wholesale trade | 580271 | 1981-12-29 | | Gulfport |
| WIN-LOTT OIL, GAS AND MINERAL LEASES, INC. | — | 406899 | 1981-06-15 | Dissolved | |
| WIN-LOTT, INC. | — | 504095 | 1981-06-15 | Dissolved | |
| WINDSURFING TOURS INTERNATIONAL, INC. | — | 229436 | 1981-02-04 | Dissolved | |
| WINDY HILL RENTAL PROPERTIES, INC. | — | 406925 | 1981-09-02 | Dissolved | MADISON |
| WINGS OF THE MORNING MISSIONS, INC. | — | 406940 | 1981-01-29 | Active | SUMRALL |
| WINSTEAD PERPETUAL CEMETARIES, INC. | — | 406974 | 1981-05-05 | Dissolved | |
| WINSTON APARTMENT LAUNDRIES, INC. | — | 406977 | 1981-06-25 | Dissolved | |
| WINSTONVILLE ASSOCIATES, LTD. | Real estate and leasing | 406993 | 1981-08-25 | Active | Jackson |
| WISE CARTER CHILD & CARAWAY, A PROFESSIONAL ASSOCIATION | Professional services | 407011 | 1981-02-27 | Active | Jackson |
| WISSNER INFORMATION SYSTEMS, INC. | — | 502578 | 1981-11-04 | Dissolved | |
| WITT'S TRUCKING CORPORATION | — | 407025 | 1981-05-18 | Dissolved | |
| WM. ROBERTS WILSON, JR. & ASSOCIATES, P.A. | — | 406750 | 1981-03-06 | | Pascagoula |
| WM. ROBERTS WILSON, JR., P.A. | — | 557517 | 1981-03-06 | Merged | Flowood |
| WOMETCO MOBILE COCA-COLA BOTTLING COMPANY, INC. | — | 502579 | 1981-11-24 | Merged | Madison |
| WOMETCO PLASTICS, INC. | — | 407066 | 1981-10-05 | | Gulfport |
| WONG'S, INC. | — | 407074 | 1981-07-28 | Dissolved | |
| WOODBRIDGE, INC. | — | 407096 | 1981-08-03 | Dissolved | Pearl |
| WOODCHUCKERS, INC. | — | 407097 | 1981-08-06 | Dissolved | |
| WOODS & WATER OF COLUMBUS, INC. | — | 407151 | 1981-09-09 | Dissolved | |
| WOODWARD SECURITY SERVICE, INC. | — | 407168 | 1981-05-08 | Dissolved | PETAL |
| WOODWIN EXPLORATION CO., INC. | — | 407171 | 1981-01-26 | Dissolved | |
| WOODY'S, INC. | — | 407174 | 1981-08-17 | Dissolved | MCCOMB |
| WOOL-CON, INC. | — | 407175 | 1981-10-14 | Dissolved | |
| WOOTEN'S MOBILE HOME REPAIRS, INC. | — | 407185 | 1981-02-16 | Dissolved | MORTON |