| Penda Corporation | Manufacturing | $7,056,427 | $7,150,936 | 500 | $495.9M |  Research |
| Rhyme Business Products LLC | Wholesale Trade | $1,147,082 | $1,156,290 | 77 | $23.6M | Research |
| Portage Plastics Corporation | Manufacturing | $1,136,247 | $1,126,228 | 108 | $107.1M | Research |
| Rhyme Business Products L.l.c. | Retail Trade | $1,094,047 | $1,101,600 | 91 | $19.8M | Research |
| Zimmerman Plumbing, Inc. | Construction | $996,772 | $1,002,643 | 47 | $14.9M | Research |
| Cascade Mountain Management Corporation | Arts, Entertainment, and Recreation | $907,460 | $914,521 | 54 | $7.6M | Research |
| Midwest Modern LLC | Construction | $872,525 | $0 | 67 | $20.4M | Research |
| General Engineering Company | Other Services (except Public Administration) | $654,100 | $660,229 | 65 | $12.4M | Research |
| Morski Brands, Inc. | Manufacturing | $633,500 | $638,082 | 96 | $33.9M | Research |
| Electric 1 Inc. | Construction | $607,283 | $611,758 | 65 | $21.4M | Research |
| Fsi, INC | Accommodation and Food Services | $605,794 | $610,939 | 133 | $23.6M | Research |
| Electric 1, INC | Construction | $592,137 | $595,657 | 54 | $17.8M | Research |
| Northwoods Inc. of Wisconsin | Health Care and Social Assistance | $505,368 | $509,231 | 145 | N/A | Research |
| Northwoods Inc. of Wisconsin | Health Care and Social Assistance | $493,765 | $496,511 | 147 | N/A | Research |
| Portage Casting & Mold INC | Manufacturing | $477,772 | $480,534 | 33 | $8.6M | Research |
| Community Service Associates, S.c. | Health Care and Social Assistance | $473,000 | $477,160 | 50 | $11.7M | Research |
| Portage Cars, LLC | Retail Trade | $433,884 | $439,079 | 36 | $9.1M | Research |
| Trecek Automotive of Portage, Inc. | Retail Trade | $400,526 | $404,031 | 32 | $8.1M | Research |
| Crawford Oil Company Inc. | Retail Trade | $365,777 | $367,641 | 36 | $8.6M | Research |
| The Country Plumber, INC | Construction | $324,275 | $328,166 | 28 | $8.9M | Research |
| Crawford Oil Company, Incorporated | Retail Trade | $310,340 | $312,228 | 36 | $8.6M | Research |
| Portage Lumber Company, Inc. | Retail Trade | $263,593 | $265,189 | 36 | $7.4M | Research |
| St. John's Lutheran Ministries | Other Services (except Public Administration) | $239,625 | $240,991 | 39 | N/A | Research |
| New Life Physical Therapy and Sports Medicine INC | Health Care and Social Assistance | $217,300 | $218,582 | 18 | <$5M | Research |
| Hart & Olson Family Dentistry S.c. | Health Care and Social Assistance | $215,000 | $216,319 | 21 | <$5M | Research |