| Alexanders Contract Services INC | Administrative and Support and Waste Management | $1,270,157 | $1,286,652 | 168 | $31.8M |  Research |
| Atascadero Glass, INC | Construction | $1,021,965 | $1,028,230 | 58 | $13.4M | Research |
| Paccoast Labs INC | Health Care and Social Assistance | $904,280 | $0 | 67 | $15.5M | Research |
| Kennedy Management Services, Inc. | Arts, Entertainment, and Recreation | $863,200 | $871,352 | 329 | $46.1M | Research |
| Kirk Construction | Construction | $823,250 | $828,641 | 48 | $54.7M | Research |
| Central Coast Emergency Physicians, a Medical Group, Inc. | Health Care and Social Assistance | $823,102 | $832,077 | 31 | $9.7M | Research |
| Central Coast Emergency Physicians a Medical Group Inc. | Health Care and Social Assistance | $823,100 | $830,046 | 31 | $9.7M | Research |
| Pacific Coast Transportation, Inc. | Transportation and Warehousing | $780,000 | $786,587 | 66 | $15.0M | Research |
| Wysong Construction Co | Construction | $765,095 | $768,070 | 30 | $34.2M | Research |
| Kirk Construction | Construction | $740,609 | $745,876 | 47 | $53.5M | Research |
| Kellie Avila Construction Services Inc. | Construction | $687,180 | $693,582 | 33 | $11.2M | Research |
| Solarponics, Inc. | Construction | $640,770 | $649,214 | 43 | $14.1M | Research |
| Parks and Recreation Management Inc. | Accommodation and Food Services | $592,785 | $597,657 | 36 | $11.3M | Research |
| Wysong Construction Co. | Construction | $581,210 | $587,523 | 26 | $29.6M | Research |
| Solarponics Inc. | Construction | $572,098 | $577,176 | 45 | $14.8M | Research |
| Pacific Coast Transportation INC | Transportation and Warehousing | $570,033 | $575,226 | 50 | $11.4M | Research |
| Brother's Union LLC | Accommodation and Food Services | $568,855 | $573,063 | 90 | $16.0M | Research |
| Raminha Construction INC | Construction | $494,413 | $499,858 | 23 | $7.1M | Research |
| Raminha Construction INC | Construction | $494,413 | $498,923 | 23 | $7.1M | Research |
| Atascadero Pet Center INC | Professional, Scientific, and Technical Services | $481,225 | $487,561 | 43 | $6.0M | Research |
| K D Janni Landscaping Inc. | Administrative and Support and Waste Management | $477,600 | $480,165 | 54 | $11.7M | Research |
| Davis Body Shop Inc. | Other Services (except Public Administration) | $457,190 | $462,200 | 40 | $7.8M | Research |
| Davis Body Shop, Inc. | Other Services (except Public Administration) | $456,995 | $444,504 | 35 | $6.9M | Research |
| Central Coast Casualty | Construction | $452,190 | $455,250 | 28 | $31.9M | Research |
| Brother's Union LLC | Accommodation and Food Services | $447,000 | $370,405 | 50 | $8.9M | Research |