| Thunder Bay Community Health Service, Inc. | Health Care and Social Assistance | $2,124,900 | $2,153,704 | 149 | N/A |  AI Deep Dive |
| Thunder Bay Golf Course INC | Accommodation and Food Services | $223,900 | $225,722 | 52 | $16.3M | AI Deep Dive |
| Bicycle Street Inn Properties LLC | Accommodation and Food Services | $150,091 | $151,254 | 8 | <$5M | AI Deep Dive |
| Macarthur Construction INC | Construction | $139,300 | $140,163 | 8 | <$5M | AI Deep Dive |
| Macarthur Construction INC | Construction | $139,300 | $140,573 | 8 | <$5M | AI Deep Dive |
| Main Street 7416 LLC | Accommodation and Food Services | $115,714 | $116,557 | 6 | <$5M | AI Deep Dive |
| Thunder Bay Golf Course, Inc. | Arts, Entertainment, and Recreation | $110,100 | $111,076 | 45 | $6.3M | AI Deep Dive |
| Bicycle Street Inn Properties, LLC | Accommodation and Food Services | $107,207 | $108,329 | 10 | <$5M | AI Deep Dive |
| Kenyon Construction Inc. | Construction | $86,805 | $87,080 | 20 | $6.1M | AI Deep Dive |
| Hillman's Haven, LLC | Real Estate and Rental and Leasing | $75,400 | $75,995 | 17 | <$5M | AI Deep Dive |
| Village Loft Inc. | Accommodation and Food Services | $59,700 | $60,325 | 13 | <$5M | AI Deep Dive |
| Thunder Bay Sanitation, Inc. | Administrative and Support and Waste Management | $50,000 | $50,482 | 9 | <$5M | AI Deep Dive |
| Bader Consulting INC | Retail Trade | $49,095 | $49,418 | 6 | <$5M | AI Deep Dive |
| Doug Kenyon Builders, Inc. | Construction | $45,760 | $46,228 | 11 | <$5M | AI Deep Dive |
| Patchwood Products | Real Estate and Rental and Leasing | $45,100 | $41,357 | 9 | <$5M | AI Deep Dive |
| Post Investments, Inc. | Retail Trade | $43,455 | $43,671 | 10 | <$5M | AI Deep Dive |
| Hillman Tire Sales & Service LLC | Other Services (except Public Administration) | $39,770 | $49,598 | 4 | <$5M | AI Deep Dive |
| Hardies Electric INC | Construction | $36,705 | $37,048 | 5 | <$5M | AI Deep Dive |
| Fochtman Carquest | Retail Trade | $33,955 | $34,288 | 4 | <$5M | AI Deep Dive |
| Vanpamels Hometown Diner LLC | Accommodation and Food Services | $31,669 | $31,916 | 16 | <$5M | AI Deep Dive |
| Godfrey Farms, Inc. | Agriculture, Forestry, Fishing and Hunting | $31,200 | $31,550 | 10 | <$5M | AI Deep Dive |
| Patchwood Products Inc. | Manufacturing | $29,793 | $29,936 | 7 | <$5M | AI Deep Dive |
| Village Loft, INC | Accommodation and Food Services | $29,000 | $29,225 | 12 | <$5M | AI Deep Dive |
| Hardies and Sons | Agriculture, Forestry, Fishing and Hunting | $28,805 | $28,944 | 5 | <$5M | AI Deep Dive |
| Hardies Electric INC | Construction | $28,800 | $29,025 | 2 | <$5M | AI Deep Dive |