| RBRevive Brands | Petaluma | CA | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| RGRobert Giacomini Dairy INC | Petaluma | CA | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| RSRoss Shafer Dba Six-nine-design | Petaluma | CA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| RCRotork Controls INC | Petaluma | CA | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| SISarmentine INC | Petaluma | CA | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| SIShips Int'l INC. | Petaluma | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| SDSlo Down Wines | Petaluma | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◇ UNVERIFIED |
| SCSonoma Compost | Petaluma | CA | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| SPSonoma Pharmaceuticals Dba Oculus Innovative Sciences | Petaluma | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SPSpringfield Place Retirement Community | Petaluma | CA | Electrical Equipment, Appliance & Component Manufacturing335911 | — | ◇ UNVERIFIED |
| SHSpring Hill Jersey Cheese INC | Petaluma | CA | Food Manufacturing311313 | — | ◇ UNVERIFIED |
| SPSscop Properties LLC | Petaluma | CA | Computer and Electronic Product Manufacturing334610 | — | ◇ UNVERIFIED |
| SLSubsite LLC Dba Rs Technical Services | Petaluma | CA | Computer and Electronic Product Manufacturing334220 | — | ◇ UNVERIFIED |
| SLSunset Line & Twine CO | Petaluma | CA | Textile Product Mills314994 | — | ◇ UNVERIFIED |
| TCTegal Corporation | Petaluma | CA | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| TPTellabs Petaluma | Petaluma | CA | Computer and Electronic Product Manufacturing334210 | — | ◇ UNVERIFIED |
| TPThe Print Works | Petaluma | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| TSThe Stero Company | Petaluma | CA | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| TMTim Mccloskey Electric, INC | Petaluma | CA | Electrical Equipment, Appliance & Component Manufacturing335139 | — | ◇ UNVERIFIED |
| TRTorn Ranch | Petaluma | CA | Food Manufacturing311330 | — | ◇ UNVERIFIED |
| UTUS Traffic Control West LLC | Petaluma | CA | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| VMVoyager Milk | Petaluma | CA | Food Manufacturing311514 | — | ◇ UNVERIFIED |
| VMVulcan Materials CO Dba Shamrock Materials | Petaluma | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WFWillowbrook Feeds | Petaluma | CA | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| WEWorkrite Erogonomics LLC | Petaluma | CA | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
