| M and B Group, Inc. | Construction | $1,523,573 | $1,534,050 | 103 | $23.8M |  Research |
| Francis J. Palo Inc. | Construction | $1,497,200 | $1,508,111 | 98 | $111.7M | Research |
| M and B Group INC | Construction | $1,331,351 | $1,340,324 | 101 | $31.3M | Research |
| Clarion Forest Vna, Inc. | Health Care and Social Assistance | $684,700 | $690,234 | 60 | N/A | Research |
| Burns & Burns Associates INC | Finance and Insurance | $603,000 | $606,987 | 57 | $29.3M | Research |
| Terra Works Inc. | Construction | $407,649 | $410,877 | 27 | $8.4M | Research |
| Kerle Tire Company INC | Retail Trade | $395,600 | $397,919 | 32 | $8.7M | Research |
| Clarion Rehabilitation Services Inc. | Health Care and Social Assistance | $365,745 | $367,594 | 35 | $9.4M | Research |
| Terra Works, Inc. | Construction | $349,055 | $351,114 | 20 | $6.8M | Research |
| Seven Seas Pools and Spas INC | Retail Trade | $308,300 | $300,903 | 47 | $7.3M | Research |
| Zacherl Motor Truck Sales, Inc. | Wholesale Trade | $302,817 | $304,625 | 34 | $10.4M | Research |
| Auto Group Enterprises, Inc. | Retail Trade | $260,557 | $262,254 | 22 | $5.5M | Research |
| Kriebel Well Services INC | Mining, Quarrying, and Oil and Gas Extraction | $254,702 | $256,407 | 39 | <$5M | Research |
| Avonelle, INC | Retail Trade | $254,465 | $258,278 | 59 | $14.7M | Research |
| Kriebel Well Services INC | Mining, Quarrying, and Oil and Gas Extraction | $250,800 | $252,660 | 21 | <$5M | Research |
| Luton's Plumbing, Heating & Air Conditioning, Inc. | Construction | $239,421 | $241,152 | 21 | $6.6M | Research |
| J.m. Leasing Co. | Transportation and Warehousing | $225,595 | $226,974 | 30 | <$5M | Research |
| Clarion Vocational Services Iso INC | Health Care and Social Assistance | $216,000 | $216,817 | 57 | N/A | Research |
| Luton's Plumbing Heating & Air Conditioning Inc. | Construction | $215,644 | $216,754 | 22 | $7.0M | Research |
| B&w Smith Excavation Inc. | Construction | $201,100 | $202,411 | 14 | $5.2M | Research |
| Clarion University Foundation, Inc. | Administrative and Support and Waste Management | $199,200 | $201,933 | 14 | N/A | Research |
| B & W Smith Excavating INC | Construction | $196,200 | $193,504 | 18 | $6.7M | Research |
| Kriebel Minerals INC | Mining, Quarrying, and Oil and Gas Extraction | $190,507 | $191,729 | 39 | <$5M | Research |
| Kriebel Minerals INC | Mining, Quarrying, and Oil and Gas Extraction | $188,100 | $189,406 | 15 | <$5M | Research |
| Delta Contractors & Design, INC | Construction | $187,078 | $188,451 | 25 | $28.5M | Research |