| Wittenbach Business Systems LLC | Other Services (except Public Administration) | $3,359,800 | $3,396,758 | 243 | $52.2M |  Research |
| Skyline San Jose Operating Company, LP | Health Care and Social Assistance | $2,061,155 | $2,097,111 | 261 | $44.4M | Research |
| Fremont Healthcare Operating Company, LP | Health Care and Social Assistance | $1,411,879 | $1,427,292 | 120 | $20.4M | Research |
| Parkview Operating Company, LP | Unknown | $1,397,766 | $1,413,724 | 122 | N/A | Research |
| Rehabilitation Center of Santa Monica Operating Company, LP | Health Care and Social Assistance | $1,371,860 | $1,387,560 | 131 | $22.3M | Research |
| First Street Management, LLC | Health Care and Social Assistance | $1,368,100 | $1,387,177 | 100 | $31.4M | Research |
| First Street Management LLC | Administrative and Support and Waste Management | $1,366,296 | $1,384,437 | 68 | $12.9M | Research |
| San Rafael Operating Company, LP | Health Care and Social Assistance | $1,306,600 | $1,320,718 | 104 | $17.7M | Research |
| Idesignbuild LLC | Construction | $1,295,000 | $0 | 37 | $11.2M | Research |
| San Marcos Operating Company LP | Health Care and Social Assistance | $1,267,374 | $1,281,245 | 120 | $20.4M | Research |
| Bio-Pacific LLC | Health Care and Social Assistance | $1,243,451 | $1,256,231 | 133 | $22.6M | Research |
| Hallaton INC | Manufacturing | $1,203,485 | $1,209,965 | 87 | $21.3M | Research |
| Paul Fredrick Menstyle, LLC | Retail Trade | $1,188,772 | $1,200,334 | 90 | $27.2M | Research |
| Taylor Technologies, Inc. | Manufacturing | $1,169,942 | $1,178,180 | 80 | $20.9M | Research |
| Autumn Hills Operating Company, LP | Health Care and Social Assistance | $1,104,688 | $1,117,699 | 107 | $18.2M | Research |
| Monterey Palms Operating Company LP | Health Care and Social Assistance | $1,068,625 | $1,080,320 | 111 | $18.9M | Research |
| Driftwood Hayward Operating Company, LP | Health Care and Social Assistance | $1,046,157 | $1,058,159 | 91 | $15.5M | Research |
| Almaden Operating Company LP | Health Care and Social Assistance | $1,031,690 | $1,042,953 | 85 | $14.5M | Research |
| Creekside Operating Company LP | Health Care and Social Assistance | $1,025,387 | $1,036,610 | 88 | $15.0M | Research |
| Plumas Health Care, LLC | Real Estate and Rental and Leasing | $1,023,900 | $1,033,769 | 97 | $11.3M | Research |
| Driftwood Santa Cruz Operating Company LP | Health Care and Social Assistance | $1,021,437 | $1,032,928 | 90 | $15.3M | Research |
| Hayward Hills Operating Company, LP | Health Care and Social Assistance | $994,755 | $1,005,531 | 83 | $14.1M | Research |
| Verdugo Vista Operating Company LP | Health Care and Social Assistance | $982,500 | $993,253 | 98 | $16.7M | Research |
| Inglewood Operating Company LP | Health Care and Social Assistance | $947,656 | $957,816 | 98 | $16.7M | Research |
| Oldfields School INC | Educational Services | $858,895 | $870,729 | 61 | N/A | Research |