| Engineering Remediation Resour | Administrative and Support and Waste Management | $3,703,100 | $3,747,640 | 200 | $37.8M |  Research |
| Contra Costa Arc | Health Care and Social Assistance | $2,441,384 | $2,469,610 | 285 | N/A | Research |
| Dawson Electric, Inc. | Construction | $2,192,372 | $1,990,455 | 132 | $43.4M | Research |
| Engineering Remediation Resources Group Inc. | Administrative and Support and Waste Management | $2,000,000 | $2,026,167 | 200 | $37.8M | Research |
| Dawson Electric Inc. | Construction | $1,918,590 | $1,929,576 | 79 | $26.0M | Research |
| Sonnikson and Stordahl Construction | Construction | $1,574,332 | $1,584,740 | 75 | $85.5M | Research |
| Baja Construction Co., Inc. | Construction | $1,399,192 | $1,411,357 | 101 | $34.4M | Research |
| The Cbr Group | Professional, Scientific, and Technical Services | $1,193,562 | $1,200,418 | 88 | $10.9M | Research |
| Wastexperts Inc. | Administrative and Support and Waste Management | $1,175,300 | $1,181,736 | 115 | $21.8M | Research |
| Trader Vics | Accommodation and Food Services | $1,113,781 | $1,124,156 | 65 | $11.5M | Research |
| Mck Services INC | Construction | $1,112,107 | $1,118,841 | 49 | $15.2M | Research |
| The Cbr Group | Professional, Scientific, and Technical Services | $1,107,997 | $1,117,477 | 82 | $8.5M | Research |
| Redstone Print & Mail, Inc. | Professional, Scientific, and Technical Services | $936,105 | $945,508 | 136 | $15.2M | Research |
| Shields Harper and Company | Wholesale Trade | $924,590 | $932,975 | 67 | $20.5M | Research |
| Prosiding, Inc. | Construction | $901,600 | $912,493 | 52 | $15.8M | Research |
| Vine Hill Hardware, Inc. | Retail Trade | $897,965 | $902,505 | 138 | $28.5M | Research |
| Re Milano Plumbing Corporation | Construction | $852,005 | $862,883 | 25 | $7.9M | Research |
| Sycamore Healthcare Associates Inc, DBA Legacy Post Acute Ca | Health Care and Social Assistance | $821,330 | $829,498 | 137 | $23.3M | Research |
| Las Trampas School INC | Educational Services | $755,668 | $765,722 | 113 | N/A | Research |
| E. E. Gilbert Construction Inc. | Construction | $736,250 | $748,393 | 27 | $6.2M | Research |
| Diablo Solar Services Inc. | Construction | $696,454 | $705,785 | 67 | $22.8M | Research |
| Martinez Sheet Metal INC | Wholesale Trade | $666,455 | $673,356 | 24 | $7.4M | Research |
| Diablo Solar Services INC | Construction | $652,870 | $660,579 | 43 | $14.1M | Research |
| R.e. Milano Plumbing Corporation | Construction | $634,075 | $640,807 | 36 | $11.4M | Research |
| Bel Air Mechanical Inc. | Construction | $614,979 | $618,566 | 22 | $7.0M | Research |