| Poepping, Stone, Bach &associates, Inc. | Professional, Scientific, and Technical Services | $434,000 | $437,781 | 32 | $6.5M |  AI Deep Dive |
| St Peter Parish of Quincy, Illinois | Other Services (except Public Administration) | $422,800 | $426,088 | 82 | N/A | AI Deep Dive |
| Gully Truck Leasing | Transportation and Warehousing | $420,900 | $426,435 | 38 | $7.7M | AI Deep Dive |
| Quincy Notre Dame High School | Educational Services | $419,100 | $421,708 | 54 | N/A | AI Deep Dive |
| Rees Construction Company of Quincy | Construction | $409,875 | $414,400 | 13 | <$5M | AI Deep Dive |
| R.m. Leasing INC | Real Estate and Rental and Leasing | $405,727 | $408,758 | 73 | $33.0M | AI Deep Dive |
| Advance Physical Therapy & Sports Medicine of Adams County, | Health Care and Social Assistance | $395,800 | $399,813 | 32 | $8.6M | AI Deep Dive |
| Dte INC of Quincy | Wholesale Trade | $383,990 | $386,348 | 43 | $13.2M | AI Deep Dive |
| Staradio Corp | Information | $376,033 | $377,390 | 33 | $5.5M | AI Deep Dive |
| Staradio Corp. | Information | $376,033 | $379,626 | 39 | $6.5M | AI Deep Dive |
| Quincy Country Club | Arts, Entertainment, and Recreation | $369,425 | $0 | 30 | N/A | AI Deep Dive |
| B-Ball. Inc. | Accommodation and Food Services | $358,400 | $360,982 | 41 | $7.3M | AI Deep Dive |
| Michelmann Steel Construction Company | Manufacturing | $354,748 | $358,394 | 28 | $7.3M | AI Deep Dive |
| Maas Construction INC | Construction | $346,536 | $348,634 | 21 | $23.9M | AI Deep Dive |
| Quincy Metal Fabricators, INC | Manufacturing | $346,100 | $348,490 | 31 | $7.6M | AI Deep Dive |
| Quincy Metal Fabricators, INC | Manufacturing | $346,100 | $347,864 | 29 | $7.1M | AI Deep Dive |
| Quincy Farm Products, LLC | Wholesale Trade | $344,742 | $369,160 | 33 | $10.1M | AI Deep Dive |
| Team USA Mortgage | Finance and Insurance | $332,409 | $335,341 | 43 | $22.1M | AI Deep Dive |
| Quincy Industrial Painting Co., Inc. | Construction | $326,558 | $329,456 | 31 | $7.8M | AI Deep Dive |
| Quincy Industrial Painting Co | Other Services (except Public Administration) | $326,558 | $328,266 | 31 | $6.7M | AI Deep Dive |
| Ortman Fluid Power | Other Services (except Public Administration) | $322,402 | $325,402 | 22 | <$5M | AI Deep Dive |
| Tom Hilbing Autobody and Sales INC | Other Services (except Public Administration) | $321,209 | $322,984 | 21 | <$5M | AI Deep Dive |
| Tom Hilbing Autobody and Sales INC | Other Services (except Public Administration) | $320,029 | $322,447 | 19 | <$5M | AI Deep Dive |
| Otto Vending Service, Inc. | Retail Trade | $318,145 | $321,159 | 41 | $10.0M | AI Deep Dive |
| Schmiedeskamp, Robertson, Neu and Mitchell LLP | Professional, Scientific, and Technical Services | $305,159 | $558,739 | 37 | $9.0M | AI Deep Dive |