| Wimmer Brothers Realty, Inc. | Real Estate and Rental and Leasing | $2,138,100 | $2,165,222 | 192 | $27.8M |  Research |
| Holz Motors Inc. | Wholesale Trade | $1,523,778 | $1,533,598 | 125 | $38.3M | Research |
| Wheel & Sprocket, Inc. | Retail Trade | $980,500 | $991,541 | 117 | $27.5M | Research |
| Sacred Heart Seminary and School of Theology Inc. | Other Services (except Public Administration) | $709,625 | $713,291 | 53 | N/A | Research |
| Hales Corners Lutheran Foundation, Inc. | Other Services (except Public Administration) | $652,347 | $836,400 | 99 | N/A | Research |
| New World Now LLC | Professional, Scientific, and Technical Services | $574,185 | $579,921 | 39 | $8.1M | Research |
| St Marys Congregation | Other Services (except Public Administration) | $532,967 | $536,136 | 57 | $10.9M | Research |
| Sacred Heart Seminary and School of Theology | Other Services (except Public Administration) | $523,147 | $525,995 | 55 | N/A | Research |
| Options for Community Growth, Inc. | Health Care and Social Assistance | $521,400 | $520,383 | 109 | $18.5M | Research |
| St Marys Congregation | Other Services (except Public Administration) | $466,337 | $469,557 | 57 | $10.9M | Research |
| Burmeister Woodwork Company | Manufacturing | $455,667 | $458,414 | 40 | $10.5M | Research |
| Beson & Houle, LLC | Construction | $453,670 | $458,686 | 16 | $5.1M | Research |
| Pace Electric Inc. | Construction | $442,700 | $446,605 | 49 | $16.1M | Research |
| Full Service Car Wash, Inc. | Other Services (except Public Administration) | $349,000 | $351,639 | 100 | $19.6M | Research |
| Full Service Car Wash Inc. | Other Services (except Public Administration) | $349,000 | $350,979 | 100 | $19.6M | Research |
| Journeys Lutheran School Inc. | Other Services (except Public Administration) | $247,000 | $249,693 | 22 | <$5M | Research |
| Paramount Pediatric Dentistry S.c. | Health Care and Social Assistance | $242,728 | $245,255 | 28 | $6.5M | Research |
| Paramount Pediatric Dentistry, S.c. | Health Care and Social Assistance | $242,727 | $246,039 | 27 | $6.3M | Research |
| M-W Marine, Incorporated | Retail Trade | $215,517 | $217,784 | 17 | <$5M | Research |
| Hale House LLC | Accommodation and Food Services | $186,000 | $187,962 | 23 | <$5M | Research |
| Sherper's, Inc. | Retail Trade | $179,217 | $181,298 | 23 | <$5M | Research |
| Czaplicki Family Dentistry Sc | Health Care and Social Assistance | $177,500 | $178,682 | 13 | <$5M | Research |
| Rah of Waukesha INC | Accommodation and Food Services | $166,119 | $167,116 | 50 | $8.9M | Research |
| Jet Permit Ltd. | Transportation and Warehousing | $161,657 | $162,515 | 14 | <$5M | Research |
| Four Lite Window & Door Inc. | Construction | $157,683 | $159,570 | 10 | <$5M | Research |