| The Fullington Auto Bus Co | Transportation and Warehousing | $2,553,600 | $2,583,392 | 440 | $169.2M |  Research |
| Appalachian Wood Products, INC | Manufacturing | $1,995,627 | $2,020,149 | 264 | $69.1M | Research |
| Appalachian Wood Products Inc. | Manufacturing | $1,759,827 | $1,776,847 | 222 | $220.2M | Research |
| Tmp Manufacturing Company INC | Manufacturing | $995,710 | $1,000,484 | 73 | $19.1M | Research |
| Tmp Manufacturing Company, Inc. | Manufacturing | $889,396 | $894,610 | 63 | $16.5M | Research |
| Kurtz Bros. Inc. | Wholesale Trade | $845,010 | $849,756 | 81 | $20.8M | Research |
| Greenland Const., Inc. | Construction | $585,000 | $588,638 | 34 | $10.5M | Research |
| Greenland Construction Inc. | Construction | $585,000 | $589,728 | 32 | $9.9M | Research |
| Lpr Energy LLC | Mining, Quarrying, and Oil and Gas Extraction | $450,950 | $453,717 | 26 | <$5M | Research |
| Lpr Energy, LLC | Mining, Quarrying, and Oil and Gas Extraction | $450,900 | $454,705 | 27 | <$5M | Research |
| Clearfield County Area Agency On Aging, Inc. | Health Care and Social Assistance | $450,540 | $452,996 | 68 | N/A | Research |
| Clearfield Metal Technologies Inc. | Manufacturing | $379,654 | $382,046 | 57 | $13.9M | Research |
| Grice Gun Shop, Inc. | Retail Trade | $330,540 | $332,496 | 23 | $5.4M | Research |
| Vision Quality Components Inc. | Manufacturing | $261,203 | $263,399 | 22 | $5.4M | Research |
| E M Brown Incorporated | Mining, Quarrying, and Oil and Gas Extraction | $253,225 | $255,764 | 12 | <$5M | Research |
| Clearfield Machine Company | Manufacturing | $244,368 | $246,215 | 17 | <$5M | Research |
| Denny's Beer Barrel Pub INC | Accommodation and Food Services | $240,643 | $241,882 | 21 | <$5M | Research |
| Clearfield Ems Inc. | Health Care and Social Assistance | $226,752 | $227,870 | 30 | N/A | Research |
| Central Pennsylvania Community Action, Inc. | Public Administration | $225,420 | $226,797 | 27 | N/A | Research |
| Clearfield Wholesale Paper Co. Inc. | Manufacturing | $216,700 | $218,271 | 23 | $22.8M | Research |
| Clearfield Equipment Company | Retail Trade | $201,125 | $203,186 | 17 | <$5M | Research |
| Clearfield Machine Company INC | Manufacturing | $201,000 | $202,762 | 19 | <$5M | Research |
| Walter Hopkins & Company, L.l.p. | Professional, Scientific, and Technical Services | $198,800 | $200,167 | 14 | <$5M | Research |
| Clearfield Equipment Co INC | Retail Trade | $189,657 | $191,070 | 17 | <$5M | Research |
| Em Brown INC | Administrative and Support and Waste Management | $185,334 | $186,710 | 12 | <$5M | Research |