| Ghilotti Construction Company, Inc. | Construction | $10,000,000 | $8,316,108 | 348 | $107.9M |  Research |
| Sonic.net LLC | Information | $7,288,935 | $7,393,576 | 500 | $84.0M | Research |
| Vintage Wine Estates, Inc. | Manufacturing | $6,524,977 | $6,604,183 | 488 | $172.2M | Research |
| G & C Auto Body INC | Other Services (except Public Administration) | $4,258,925 | $4,312,598 | 294 | $57.6M | Research |
| Northern California Medical Associates Inc. | Health Care and Social Assistance | $3,961,100 | $3,622,780 | 335 | $105.1M | Research |
| Canine Companions for Independance | Other Services (except Public Administration) | $3,738,300 | $3,778,960 | 250 | $47.8M | Research |
| Freeman Motors INC | Retail Trade | $3,599,775 | $3,644,945 | 262 | $66.0M | Research |
| Sonoma Media Investments, LLC | Information | $3,377,543 | $3,415,112 | 273 | $45.8M | Research |
| Cattlemens | Accommodation and Food Services | $3,265,300 | $3,303,395 | 499 | $88.6M | Research |
| La Torilla Factory Inc. | Manufacturing | $3,045,835 | $3,080,633 | 282 | $99.5M | Research |
| Hansel-Prestige, INC | Retail Trade | $2,750,830 | $2,782,465 | 193 | $48.6M | Research |
| Argonaut Constructors, Inc. | Construction | $2,741,800 | $2,773,788 | 176 | $54.6M | Research |
| Devincenzi Concrete Construction | Construction | $2,687,178 | $2,720,675 | 93 | $21.5M | Research |
| Atech Logistics, Inc. | Transportation and Warehousing | $2,573,500 | $2,602,337 | 173 | $26.1M | Research |
| Neilmed Pharmaceuticals, Inc. | Manufacturing | $2,511,200 | $1,358,275 | 243 | $67.9M | Research |
| Kingsborough Atlas Tree Surgery Inc. | Administrative and Support and Waste Management | $2,410,838 | $2,449,746 | 103 | $22.3M | Research |
| Northwest General Engineering | Professional, Scientific, and Technical Services | $2,377,200 | $2,407,289 | 145 | $17.9M | Research |
| Mcf4 Solutions LLC | Agriculture, Forestry, Fishing and Hunting | $2,295,235 | $2,320,766 | 388 | $19.5M | Research |
| Catholic Charities of the Diocese of Santa Rosa | Health Care and Social Assistance | $2,149,555 | $2,174,231 | 182 | N/A | Research |
| Wright Contracting LLC | Construction | $2,148,760 | $2,176,664 | 84 | $95.7M | Research |
| Becoming Independent | Health Care and Social Assistance | $2,071,204 | $2,097,988 | 350 | N/A | Research |
| Goodwill Industries of Redwood Empire | Retail Trade | $2,021,565 | $2,047,208 | 258 | N/A | Research |
| Foreign Automotive | Retail Trade | $2,014,600 | $2,038,048 | 135 | $34.0M | Research |
| Catholic Charities of the Diocese of Santa Rosa | Health Care and Social Assistance | $2,000,000 | $2,018,466 | 174 | N/A | Research |
| G & C Auto Body INC | Other Services (except Public Administration) | $2,000,000 | $2,011,726 | 237 | $46.5M | Research |