| Penn Power West Penn Power Penelec Met Ed | 4146172 | 1,243 | 1,342 | Interstate |
| South Main Trucking Company | 696383 | 77 | 111 | Interstate |
| Medcare Equipment Company LLC | 2360892 | 68 | 57 | InterstateHazmat |
| DBA Liberty Transportation INC | 2984571 | 68 | 68 | Interstate |
| Superior Utility Excavating INC | 2478880 | 45 | 44 | Intrastate |
| Lutterman Excavating LLC | 2267970 | 36 | 26 | IntrastateHazmat |
| Arco Enterprises INC | 348659 | 28 | 35 | Interstate |
| Daniels Excavating | 2269635 | 28 | 27 | Interstate |
| Forest Hills Transfer & Storage INC | 85531 | 25 | 15 | InterstateHazmat |
| Plum Contracting INC | 356772 | 25 | 40 | Interstate |
| Greensburg Beverage INC | 33818 | 24 | 15 | Intrastate |
| D-Bug Waterproofing INC | 2488945 | 23 | 10 | Intrastate |
| Multimetal INC | 3479005 | 22 | 23 | Interstate |
| K&n Leasing Corporation | 1756049 | 18 | 15 | Interstate |
| Tobin D George Lawn Care INC | 2185773 | 18 | 18 | Intrastate |
| Adam Eidemiller INC | 494862 | 16 | 9 | Interstate |
| Steve's Auto Service | 624655 | 15 | 8 | InterstateHazmat |
| S&c Pipeline INC | 1756060 | 15 | 3 | Intrastate |
| Countryfarms INC | 2195948 | 13 | 13 | Interstate |
| Twrs LLC | 3786419 | 13 | 7 | InterstateHazmat |
| Daniels Concrete INC | 4067883 | 13 | 12 | Intrastate |
| Webb's Service Center, INC | 7609741 | 12 | 10 | Intrastate |
| 212 Express INC | 3352986 | 11 | 11 | Interstate |
| Bradish Glass INC | 28815 | 9 | 7 | Interstate |
| R & B Properties INC | 845977 | 9 | 4 | Interstate |
| Allegheny Restoration | 2304545 | 9 | 35 | Interstate |
| Kgd Contracting Inc. | 4949279 | 9 | 4 | Intrastate |
| Right Of Way Clearing & Maintenance INC | 55959 | 7 | 7 | Interstate |
| Stecko Contracting LLC | 2168730 | 7 | 2 | IntrastateHazmat |
| American Paving Company | 2282722 | 7 | 2 | Intrastate |
| Matthew Lutz | 2295018 | 7 | 2 | Intrastate |
| Asa Concrete Services | 2297731 | 7 | 7 | Intrastate |
| Bentley Contracting INC | 2362993 | 7 | 8 | Intrastate |
| Daniels Trucking INC | 3265387 | 7 | 7 | Interstate |
| Webb's Service Center | 498809 | 6 | 6 | Interstate |
| Christian Layman Corps | 2098555 | 6 | 13 | Interstate |
| R & K Complete Landscape Service | 2336126 | 6 | 3 | Intrastate |
| Iezzi Masonry And Concrete Construction | 2495863 | 6 | 4 | Intrastate |
| Cedar Creek Design INC | 2594916 | 6 | 4 | Intrastate |
| Liberty Transportation INC | 254513 | 5 | 5 | Interstate |
| Palko Truck & Trailer Shop INC | 519688 | 5 | 4 | Intrastate |
| Dansers Auto Repair | 2092383 | 5 | 2 | IntrastateHazmat |
| American Tank And Concrete Services INC | 2168006 | 5 | 3 | Interstate |
| Graham Dairy Supply INC | 2356533 | 5 | 4 | Interstate |
| Jj Hauser & Sons INC | 2832985 | 5 | 10 | Intrastate |
| DBA Liberty Transportation INC | 2999727 | 5 | 5 | Interstate |
| Bradish Logistics INC | 3081896 | 5 | 7 | InterstateHazmat |
| Daniels & Miller INC | 562392 | 4 | 3 | Interstate |
| Manor House Kitchens INC | 571211 | 4 | 3 | Interstate |
| Multi Metals Company INC | 656695 | 4 | 6 | Intrastate |
| Nicholson Trucking | 1571716 | 4 | 4 | Intrastate |
| Latrobe Excavating LLC | 1621759 | 4 | 4 | Intrastate |
| Salandro Excavating | 2150621 | 4 | 1 | Intrastate |
| Moore And Morford INC | 2254326 | 4 | 2 | Interstate |
| Rjc Manufacturing Services LLC | 2584221 | 4 | 4 | Intrastate |
| Allwine Curry Towing | 2814360 | 4 | 1 | Intrastate |
| Rv Leaders | 3315635 | 4 | 8 | Intrastate |
| Mangery Crane And Rigging | 3451759 | 4 | 4 | InterstateHazmat |
| Urban Outdoor Design LLC | 3454223 | 4 | 3 | Intrastate |
| Nicks Towing And Auto LLC | 3469421 | 4 | 2 | IntrastateHazmat |
| Starenchak Collision | 1100821 | 3 | 1 | Intrastate |
| Jones Stone And Marble INC | 1652911 | 3 | 3 | Interstate |
| Pennsylvania Training Consultants LLC | 2089509 | 3 | 1 | Intrastate |
| Crosby Garage Door CO | 2151875 | 3 | 3 | Intrastate |
| Cribbs And Associates INC | 2162778 | 3 | 3 | Intrastate |
| Bruce Marsteller INC | 2163727 | 3 | 1 | Interstate |
| Raimondo Construction CO INC | 2176982 | 3 | 4 | Intrastate |
| Iapalucci Landscaping | 2276678 | 3 | 1 | Intrastate |
| Inks Excavating INC | 2278358 | 3 | 1 | Intrastate |
| Bob Tomer | 2283289 | 3 | 3 | Intrastate |
| K And K Services LLC | 2284272 | 3 | 2 | Intrastate |
| Graziano & Graziano Builder Contractor | 2287762 | 3 | 2 | Intrastate |
| Hapchuk Sanitation Company | 2308708 | 3 | 3 | Intrastate |
| Rick Nicholas Concrete Construction INC | 2314288 | 3 | 2 | Intrastate |
| Omec Trucking | 2349526 | 3 | 3 | Intrastate |
| Delmont 10 Minute Oil Change LLC | 2407573 | 3 | 2 | IntrastateHazmat |
| Marsula Electric INC | 2514560 | 3 | 3 | Intrastate |
| Cavcon Construction CO INC | 2869401 | 3 | 3 | Intrastate |
| Latshaw & Son Home Heating Oil | 2988127 | 3 | 2 | IntrastateHazmat |
| 1 Plumber LLC | 3273517 | 3 | 2 | Intrastate |
| Aunt Dee Dee Festival Fun Foods LLC | 3382093 | 3 | 3 | Intrastate |
| S A Expediting | 3396657 | 3 | 6 | Interstate |
| Lifetime Home Solutions | 3440227 | 3 | 4 | Intrastate |
| Rush And Sons Contracting LLC | 3662609 | 3 | 1 | Intrastate |
| Delgross Services LLC | 3820174 | 3 | 6 | Intrastate |
| Excavating | 3863788 | 3 | 2 | Intrastate |
| Green Solar Systems LLC | 3875549 | 3 | 6 | Intrastate |
| Al Angelicchio Construction And Excavating LLC | 3942714 | 3 | 3 | Intrastate |
| Greensburg Towing Service LLC | 4038568 | 3 | 2 | IntrastateHazmat |
| Telfords Tree Service And Landscaping LLC | 4161932 | 3 | 1 | Intrastate |
| The Rehabilitation & Nursing Center At Greater Pittsburgh | 4179868 | 3 | 4 | Intrastate |
| Diamond Excavating LLC | 4196883 | 3 | 1 | Intrastate |
| Haz Enterprise LLC | 4205531 | 3 | 1 | Interstate |
| Cybercrunch INC | 4322627 | 3 | 4 | Interstate |
| Cribbs & Associates LLC | 4380695 | 3 | 8 | Intrastate |
| Double V Construction LLC | 4405907 | 3 | 8 | Intrastate |
| Gogarty Tree Service LLC | 4980593 | 3 | 3 | Intrastate |
| Greensburg Landscape Company, Inc. | 9355313 | 3 | 4 | Intrastate |
| Allegheny Records Destruction Services | 224736 | 2 | 2 | Intrastate |
| Style With Pure Secents | 1575726 | 2 | 2 | Intrastate |