| Giant Inland Empire Rv Center INC | Retail Trade | $4,152,500 | $4,202,671 | 310 | $81.0M |  Research |
| St. George Auto Sales, Inc. | Retail Trade | $2,304,990 | $2,332,586 | 278 | $70.1M | Research |
| Oparc | Health Care and Social Assistance | $1,813,500 | $1,593,750 | 253 | $41.0M | Research |
| Metro Motors, INC | Retail Trade | $1,787,700 | $1,808,557 | 162 | $40.8M | Research |
| Free Energy Savings Company, LLC DBA Quality Conservation SE | Construction | $1,671,055 | $1,704,672 | 500 | $158.2M | Research |
| Aragon Construction, Inc. | Manufacturing | $1,479,312 | $1,496,902 | 55 | $54.6M | Research |
| Ontario Nissan, Inc. | Retail Trade | $1,437,200 | $1,453,226 | 96 | $24.2M | Research |
| Cls Landscape Management INC | Administrative and Support and Waste Management | $1,344,600 | $1,361,104 | 255 | $40.1M | Research |
| Community Convalescent Center of Montclair, INC | Health Care and Social Assistance | $1,343,500 | $1,358,407 | 246 | $41.9M | Research |
| Aragon Construction Inc. | Construction | $1,130,552 | $1,138,110 | 82 | $19.0M | Research |
| Acepex Management Corporation | Administrative and Support and Waste Management | $1,095,195 | $1,115,243 | 108 | $20.4M | Research |
| Ronald Cunning Dds, Inc. | Health Care and Social Assistance | $982,195 | $994,681 | 33 | $7.6M | Research |
| Anthesis Services, a Non Profit Corporation | Health Care and Social Assistance | $882,700 | $831,496 | 125 | N/A | Research |
| Atg Electronics, Inc. | Wholesale Trade | $880,727 | $385,786 | 23 | $7.0M | Research |
| Schraders' Medical Supply Inc. | Wholesale Trade | $828,300 | $837,718 | 20 | $5.1M | Research |
| American Nail Plate Lighting, Inc. | Manufacturing | $759,900 | $501,739 | 53 | $13.9M | Research |
| Stg Auto Service INC | Other Services (except Public Administration) | $526,480 | $529,741 | 58 | $11.4M | Research |
| Maulin Homecare Services, INC | Health Care and Social Assistance | $524,017 | $530,553 | 357 | $61.1M | Research |
| John Alsop Insurance Agency | Finance and Insurance | $511,827 | $516,469 | 40 | $20.6M | Research |
| Skilled Staffing Inc. | Administrative and Support and Waste Management | $505,000 | $511,461 | 150 | $23.6M | Research |
| Ppe INC | Wholesale Trade | $500,040 | $227,489 | 24 | $7.4M | Research |
| The Right Choice | Administrative and Support and Waste Management | $497,908 | $502,950 | 80 | $12.6M | Research |
| Rac Investments, Inc. | Real Estate and Rental and Leasing | $492,599 | $498,834 | 47 | $8.6M | Research |
| MD Build Group Inc. | Construction | $471,875 | $477,810 | 50 | $12.6M | Research |
| MD Build Group, Inc. | Health Care and Social Assistance | $471,875 | $477,758 | 62 | $19.5M | Research |