| STANISLAUS COUNTY SHERIFFS K-9 ASSOCIATION | — | 2965198 | 2006-10-27 | Active | MODESTO |
| STANISLAUS COUNTY SWAT ASSOCIATION | — | 3379670 | 2011-03-11 | Dissolved | MODESTO |
| STANISLAUS COUNTY TOBACCO FUNDING CORPORATION | — | 2276673 | 2002-03-01 | Active | MODESTO |
| STANISLAUS COUNTY VETERAN EMPLOYMENT COMMITTEE | — | 3784177 | 2015-05-04 | Active | MODESTO |
| STANISLAUS COUNTY YOUTH TENNIS FOUNDATION | — | 1119934 | 1982-08-10 | Dissolved | MODESTO |
| STANISLAUS COUNTY'S CAL-WEST ROOFING, INC. | — | 2346160 | 2001-06-06 | Active | MODESTO |
| STANISLAUS CREDIT CONTROL SERVICE, INC. | — | 0415635 | 1961-06-16 | Suspended | MODESTO |
| STANISLAUS CUSTOM UPHOLSTERY, INC | — | 4299046 | 2019-07-18 | Suspended | MODESTO |
| STANISLAUS DENTAL SOCIETY, INC. | — | 0408362 | 1961-01-20 | Active | MODESTO |
| STANISLAUS DEVELOPMENT COMPANY, INC. | — | 1652768 | 1989-11-01 | Dissolved | MODESTO |
| STANISLAUS DISTRIBUTORS CO., INC. | — | 1812686 | 1992-01-02 | Dissolved | MODESTO |
| STANISLAUS DIVISION OF THE CALIFORNIA RETIRED TEACHERS ASSOCIATION | — | 0725620 | 1974-11-04 | Active | MODESTO |
| STANISLAUS EAST MUTUAL WATER COMPANY | — | 5282603 | 2022-10-06 | Active | MODESTO |
| STANISLAUS ELECTRIC MOTOR WORKS, INC. | — | 0628041 | 1971-07-01 | Active | MODESTO |
| STANISLAUS ENERGY PARTNERS, LLC | — | 200005310155 | 2000-02-22 | Suspended | MODESTO |
| STANISLAUS EQUITY PARTNERS, INC. | — | 3781525 | 2015-04-27 | Active | MODESTO |
| STANISLAUS EXPORTS COMPANY | — | 4031998 | 2017-06-01 | Active | MODESTO |
| STANISLAUS EYE CONSULTANTS, LLC | — | 201305110243 | 2013-02-19 | Suspended | MODESTO |
| STANISLAUS FAMILY LAW CENTER | — | 1859540 | 1993-06-08 | Dissolved | MODESTO |
| STANISLAUS FARM SUPPLY COMPANY | — | 0238103 | 1949-08-04 | Merged | MODESTO |
| STANISLAUS FIRE PROTECTION SERVICES, INC. | — | 0814872 | 1977-04-25 | Active | MODESTO |
| STANISLAUS FLEET CARE LLC | — | 201628610258 | 2016-10-05 | Dissolved | MODESTO |
| STANISLAUS FOOD PRODUCTS COMPANY | — | 1514505 | 1990-06-26 | Merged | MODESTO |
| STANISLAUS FOOD PRODUCTS HOLDCO, INC. | — | B20260363618 | 2026-08-10 | Active | MODESTO |
| STANISLAUS FOUNDATION FOR MEDICAL CARE | — | 0502122 | 1965-12-30 | Active | MODESTO |
| STANISLAUS GLASS CO., INC. | — | 0411075 | 1961-03-17 | Dissolved | MODESTO |
| STANISLAUS GYMNASTICS CENTER BOOSTER CLUB | — | 2233523 | 2000-04-20 | Active | MODESTO |
| STANISLAUS HEALTH AND WELLNESS INC. | — | 4070360 | 2017-09-29 | Active | MODESTO |
| STANISLAUS HEALTH FOUNDATION | — | 1110947 | 1982-05-03 | Pending | MODESTO |
| STANISLAUS IMPLEMENT & HARDWARE CO., LTD. | — | 0089271 | 1919-09-22 | Active | MODESTO |
| STANISLAUS INDIVIDUAL PRACTICE ASSOCIATION, INC. | — | 1263961 | 1984-12-17 | Dissolved | MODESTO |
| STANISLAUS INSPECTION SERVICES, INC. | — | 2680899 | 2004-10-01 | Dissolved | MODESTO |
| STANISLAUS LATINO CHAMBER OF COMMERCE | — | 2169473 | 1999-07-02 | Active | MODESTO |
| STANISLAUS LIBRARY FOUNDATION | — | 1915309 | 1994-10-21 | Active | MODESTO |
| STANISLAUS MAGAZINE, INC. | — | 2750072 | 2005-05-27 | Suspended | MODESTO |
| STANISLAUS MEDICAL BUILDING CORPORATION | — | 0272766 | 1953-04-01 | Merged | MODESTO |
| STANISLAUS MULTI-CULTURAL COMMUNITY HEALTH COALITION-WEST MODESTO/KINGKENNEDY NEIGHBORHOOD COLLABORATIVE | — | 2178256 | 1999-09-28 | Active | MODESTO |
| STANISLAUS NATIONAL COUNCIL OF SENIOR CITIZENS | — | 0540835 | 1968-02-15 | Dissolved | MODESTO |
| STANISLAUS OPEN DOOR MINISTRY | — | 2063899 | 1997-12-23 | Active | MODESTO |
| STANISLAUS OPTOMETRIC CENTER, INC. | — | 2419379 | 2002-06-10 | Dissolved | MODESTO |
| STANISLAUS PAIN TREATMENT MEDICAL CENTER, INC., A CALIFORNIA PROFESSIONAL CORPORATION | — | 2421512 | 2002-06-10 | Dissolved | MODESTO |
| STANISLAUS PARTNERS IN EDUCATION | — | 1693542 | 1991-08-07 | Active | MODESTO |
| STANISLAUS PEDIATRIC ASSOCIATION | — | 1622100 | 1988-09-07 | Dissolved | MODESTO |
| STANISLAUS PEER ADVOCACY NETWORK (SPAN) | — | 4307880 | 2019-08-13 | Dissolved | MODESTO |
| STANISLAUS PRIMARY CARE MEDICAL ASSOCIATES, INC. | — | 2008200 | 1997-04-18 | Dissolved | MODESTO |
| STANISLAUS PROPERTY MANAGEMENT, INC. | — | 4540816 | 2019-12-18 | Active | MODESTO |
| STANISLAUS PROPERTY RIGHTS INSTITUTE | — | 3152826 | 2008-07-09 | Dissolved | MODESTO |
| STANISLAUS PUMP, MACHINERY & CONSTRUCTION CORP. | — | 0651418 | 1972-05-11 | Suspended | MODESTO |
| STANISLAUS RAPE TASK FORCE | — | 1251994 | 1984-07-11 | Dissolved | MODESTO |
| STANISLAUS RATTLER YOUTH RUGBY CLUB | — | 3400230 | 2011-07-26 | Suspended | MODESTO |