| ROBERT BAIRD-SARAH ALICE NELSON FAMILY ORGANIZATION, IN | — | 696994-0140 | 1978-05-05 | Inactive | Provo |
| ROBERT D. PITTS ASSOCIATES, INC. | — | 699465-0142 | 1978-06-15 | Inactive | Salt Lake City |
| ROBERT D. ROSE FAMILY ORGANIZATION | — | 692693-0140 | 1978-02-24 | Inactive | SLC |
| ROBERT E BAYLEY CONSTRUCTION, INC. | — | 702005-0143 | 1978-07-28 | Expired | Salt Lake City |
| ROBERT J LANGSTON, LTD. | Finance and insurance | 2104151-0180 | 1978-12-29 | Inactive | |
| ROBERT KEITH SHAW FAMILY ORGANIZATION | — | 697937-0140 | 1978-05-19 | Inactive | Logan |
| ROBERT L. CUMMINGS, M.D. MEDICAL CORPORATION | Health care and social assistance | 703915-0144 | 1978-09-06 | Inactive | SLC |
| ROBERT L. FULLER, D.D.S., P.C. | Health care and social assistance | 699885-0144 | 1978-06-22 | Inactive | Sandy |
| ROBERT L. JENSEN FAMILY PARTNERSHIP | Finance and insurance | 2100949-0180 | 1978-11-29 | Inactive | Logan |
| ROBERT L. MOESINGER, M.D. A PROFESSIONAL CORPORATION | Health care and social assistance | 698243-0144 | 1978-05-26 | Active | OGDEN |
| ROBERT P. PAUL & ASSOCIATES | Real estate and leasing | 2108600-0180 | 1978-12-29 | Inactive | Salt Lake City |
| ROBERT SHAW CONSTRUCTION, CO. | — | 700032-0142 | 1978-06-26 | Inactive | Salt Lake City |
| ROBERT WILLIAM ATKINSON FAMILY ORGANIZATION | Other services | 693015-0140 | 1978-03-01 | Inactive | Sandy |
| ROBERT'S MOBILE DIESEL SERVICE, INC. | — | 708152-0142 | 1978-11-20 | Inactive | Murray |
| ROBERT-SHIPP AND ASSOCIATES, INC. | Transportation and warehousing | 691726-0142 | 1978-02-02 | Inactive | SLC |
| ROBERTS & SORENSEN GARAGE DOOR, INC. | — | 698911-0142 | 1978-06-07 | Inactive | Salt Lake City |
| ROBERTS CONSTRUCTION COMPANY | — | 697597-0142 | 1978-05-15 | Inactive | GOSHEN UTAH |
| ROBERTS PRODUCTS, INC. | — | 700924-0142 | 1978-07-10 | Inactive | Sandy |
| ROBERTS-WASATCH ASSOCIATES | Manufacturing | 2108361-0180 | 1978-02-24 | Inactive | SLC |
| ROBINSON BROTHERS, INC. | — | 698707-0142 | 1978-06-02 | Inactive | RICHFIELD |
| ROCKPORT RANCHES PROPERTY OWNERS ASSOCIATION, INC. | Real estate and leasing | 707487-0140 | 1978-11-06 | Active | SOUTH JORDAN |
| ROCKWELL ONE | Mining, oil and gas | 2108350-0180 | 1978-02-09 | Inactive | SLC |
| ROCKY MOUNTAIN CORPORATE CREDIT UNION | Finance and insurance | 690186-0140 | 1978-01-04 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN DIGITAL, INC. | — | 696175-0142 | 1978-04-24 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN FUEL SOCIETY, INCORPORATED, THE | — | 693809-0140 | 1978-03-15 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN GROWTH CAPITAL CORPORATION | — | 703708-0142 | 1978-09-01 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN INSTITUTE OF SOCIAL RESEARCH, INC. | — | 696209-0140 | 1978-04-24 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN INTERNATIONAL UNIVERSITY, THE | Educational services | 698204-0140 | 1978-05-25 | Inactive | SLC |
| ROCKY MOUNTAIN MASONRY, INC. | — | 694875-0142 | 1978-04-11 | Inactive | CENTERVILLE |
| ROCKY MOUNTAIN METALS REFINING COMPANY | — | 693497-0142 | 1978-03-09 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN PERSONNEL & SERVICES, INC. | Health care and social assistance | 694722-0142 | 1978-03-30 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN POTTERY, INC. | — | 693716-0142 | 1978-03-14 | Inactive | Provo |
| ROCKY MOUNTAIN RACQUET CLUB, THE | Transportation and warehousing | 2101411-0180 | 1978-06-28 | Inactive | KAYSVILLE |
| ROCKY MOUNTAIN SEARCH AND RESCUE | — | 706571-0140 | 1978-10-16 | Inactive | WEST VALLEY CITY |
| ROCKY MOUNTAIN SPORTS | — | 700307-0142 | 1978-06-29 | Inactive | Salt Lake City |
| ROCKY MOUNTAIN SYMPHONY ORCHESTRA, INC. | — | 693529-0140 | 1978-03-09 | Inactive | Ogden |
| ROCKY MOUNTAIN TOURS AND CHARTERS, INC. | Transportation and warehousing | 699654-0142 | 1978-06-22 | Inactive | Salt Lake City |
| RODEBACK FAMILY ORGANIZATION, THE | — | 702587-0140 | 1978-08-08 | Inactive | Salt Lake City |
| ROGER E. GRUA, D.D.S., A PROFESSIONAL CORPORATION | Health care and social assistance | 702944-0144 | 1978-08-17 | Inactive | OGDEN |
| ROGER F. SUCHYTA, M.D., INC. | Health care and social assistance | 691400-0144 | 1978-01-27 | Inactive | SO BARRINGTON |
| ROGERS INSURANCE, INC. | Finance and insurance | 691447-0142 | 1978-01-30 | Inactive | Provo |
| ROHRCO, INC. | — | 704985-0142 | 1978-09-25 | Inactive | PARK CITY |
| ROLFE EXCAVATING & CONSTRUCTION COMPANY | — | 691317-0142 | 1978-01-26 | Active | WEST JORDAN |
| ROLLING WHEELS, INC. | — | 699933-0142 | 1978-06-23 | Inactive | Salt Lake City |
| ROMERO ENTERPRISES | Manufacturing | 2101241-0180 | 1978-09-14 | Inactive | BRINGHAM CITY |
| RON AND MARK'S, INCORPORATED | — | 707732-0142 | 1978-11-10 | Inactive | PLEASANT GROVE |
| RON THORNE CONSTRUCTION, INC. | — | 708941-0142 | 1978-12-06 | Inactive | SOUTH JORDAN |
| RONALD H. ANDREWS CONSTRUCTION, INC. | — | 691973-0142 | 1978-02-08 | Inactive | MESA |
| RONALD VERN JACKSON LIMITED PARTNERSHIP | Finance and insurance | 2108509-0180 | 1978-09-25 | Inactive | BOUNTIFUL |
| RONCOR, INC. | — | 703636-0142 | 1978-08-31 | Inactive | Orem |