| TUOLUMNE COUNTY CHAMBER OF COMMERCE, INCORPORATED | 0180748 | 1939-08-23 | Active | SONORA |
| TUOLUMNE COUNTY CITIZENS FOR RESPONSIBLE GROWTH, INC. | 2796776 | 2005-08-15 | Suspended | SONORA |
| TUOLUMNE COUNTY COMMUNITY CABLE ACCESS, INC. | 1549626 | 1987-01-02 | Active | SONORA |
| TUOLUMNE COUNTY COMMUNITY TENNIS ASSOCIATION | 2358020 | 2001-09-06 | Active | SONORA |
| TUOLUMNE COUNTY DEPUTY SHERIFFS' ASSOCIATION | 1105963 | 1982-03-15 | Active | SONORA |
| TUOLUMNE COUNTY ESCROW, INC. | 3287773 | 2010-03-23 | Suspended | SONORA |
| TUOLUMNE COUNTY FARM BUREAU | 0227698 | 1948-05-21 | Active | SONORA |
| TUOLUMNE COUNTY FIRE CHIEFS ASSOCIATION | 3919031 | 2016-06-17 | Active | SONORA |
| TUOLUMNE COUNTY GENEALOGICAL SOCIETY, GOLDEN ROOTS OF THE MOTHER LODE | 1076650 | 1981-05-11 | Active | SONORA |
| TUOLUMNE COUNTY HOME BUILDERS DEVELOPMENT COMPANY | 0767665 | 1976-04-15 | Dissolved | SONORA |
| TUOLUMNE COUNTY HOUSING FOR THE HANDICAPPED | 1535661 | 1986-07-07 | Dissolved | SONORA |
| TUOLUMNE COUNTY JUNIOR RIDERS | 0487648 | 1965-03-18 | Suspended | SONORA |
| TUOLUMNE COUNTY LAND TRUST, INC. | 1288196 | 1985-10-07 | Active | SONORA |
| TUOLUMNE COUNTY LODGE BUILDING CORPORATION | 0357153 | 1958-07-08 | Active | SONORA |
| TUOLUMNE COUNTY LODGING ASSOCIATION, INC. | 4693789 | 2021-01-29 | Active | SONORA |
| TUOLUMNE COUNTY MAGAZINE, INC. | 2569392 | 2003-12-22 | Dissolved | SONORA |
| TUOLUMNE COUNTY PARTNERS IN EDUCATION | 2331819 | 2001-01-31 | Suspended | SONORA |
| TUOLUMNE COUNTY REALTY COMPANY | 0848846 | 1978-06-09 | Dissolved | SONORA |
| TUOLUMNE COUNTY SPORTSMEN, INCORPORATED | 0254752 | 1951-06-11 | Active | SONORA |
| TUOLUMNE COUNTY TITLE COMPANY | 0325774 | 1956-08-23 | Suspended | SONORA |
| TUOLUMNE COUNTY VETERANS COMMITEE, INCORPORATED | 1680299 | 1991-01-24 | Active | SONORA |
| TUOLUMNE COUNTY VETERINARY ASSOCIATION, A NONPROFIT CORPORATION | 1297080 | 1986-02-03 | Dissolved | SONORA |
| TUOLUMNE COUNTY VISITORS BUREAU INCORPORATED | 1232824 | 1983-11-23 | Active | SONORA |
| TUOLUMNE COUNTY YOUTH ACTIVITIES, INC. | 1645714 | 1989-07-17 | Dissolved | SONORA |
| TUOLUMNE COUNTY YOUTH FOOTBALL AND CHEER | 4264476 | 2019-04-08 | Suspended | SONORA |
| TUOLUMNE COUNTY YOUTH INTERESTS AND NEEDS CENTER | 0774886 | 1976-07-23 | Dissolved | SONORA |
| TUOLUMNE COUNTY YOUTH SOCCER | 1120967 | 1982-08-23 | Active | SONORA |
| TUOLUMNE FABRICATION, INC. | 1915853 | 1994-11-01 | Merged | SONORA |
| TUOLUMNE FIRE SAFE COUNCIL | 2293102 | 2002-12-23 | Active | SONORA |
| Tuolumne Forest Restoration, Inc. | 5892378 | 2023-09-06 | Active | SONORA |
| TUOLUMNE HEALTH COLLECTIVE, A CALIFORNIA NON-PROFIT MUTUAL BENEFIT CORPORATION | 3332119 | 2010-11-22 | Dissolved | SONORA |
| TUOLUMNE HERITAGE PUBLICATIONS, INC. | 3354914 | 2011-01-26 | Active | SONORA |
| TUOLUMNE INDEPENDENT ORGANIZED GROWTH ASSOCIATION, INC. | 0892943 | 1978-07-28 | Suspended | SONORA |
| TUOLUMNE LEARNING CENTER | 1913544 | 1994-09-26 | Dissolved | SONORA |
| TUOLUMNE MOBILE HOME CONSULTANTS, INCORPORATED | 1536148 | 1986-07-01 | Dissolved | SONORA |
| TUOLUMNE PROCESSING | 2327959 | 2001-01-17 | Active | SONORA |
| TUOLUMNE RADIOLOGY GROUP, INC. | 0766992 | 1976-04-02 | Dissolved | SONORA |
| TUOLUMNE RIVER EXPEDITIONS, INCORPORATED | 0710550 | 1974-03-14 | Dissolved | SONORA |
| TUOLUMNE RIVER RESORT, LLC | 200710810218 | 2007-04-18 | Dissolved | SONORA |
| TUOLUMNE SERENDIPITY, INC. | 1592850 | 1987-08-07 | Suspended | SONORA |
| TUOLUMNE SPAY AND NEUTER INC. | 5167208 | 2022-07-18 | Active | SONORA |
| TUOLUMNE SWAT ASSOCIATION | B20250374717 | 2025-11-03 | Active | SONORA |
| TUOLUMNE TECHNOLOGY GROUP, INC. | 2684108 | 2004-10-27 | Dissolved | SONORA |
| TUOLUMNE YOUTH BOXING CLUB, INC. | 0842518 | 1978-03-30 | Suspended | SONORA |
| TURBODSL.NET, LLC | 199925310046 | 1999-09-09 | Dissolved | SONORA |
| TURNA'S SONORA PETROLEUM INC. | 3427083 | 2011-11-30 | Suspended | SONORA |
| TWAIN HARTE CONSTRUCTION COMPANY | 0342627 | 1957-08-15 | Dissolved | SONORA |
| TWAIN HARTE DEVELOPERS, LLC | 200036510148 | 2000-12-26 | Dissolved | SONORA |
| TWAIN HARTE PHARMACY, INC. | 1078124 | 1981-06-01 | Active | SONORA |
| TWEDDELL GOLDBERG, LLC | 200621610089 | 2006-08-02 | Active | SONORA |