| Lenzner Coach Lines | 583785 | 46 | 49 | Interstate |
| Lenzner Lines LLC | 4293264 | 44 | 45 | Interstate |
| Quaker Valley School District | 1128150 | 41 | 47 | Intrastate |
| Ocelot Logistics LLC | 4286526 | 20 | 20 | Interstate |
| Draguns Landscape Supply | 2136628 | 14 | 14 | Interstate |
| Ngi Elite Construction LLC | 3171079 | 13 | 8 | Intrastate |
| Burda Trucking INC | 1460297 | 12 | 13 | Interstate |
| Wine Concrete Products INC | 2076823 | 12 | 3 | Intrastate |
| Green Leaf Landscape & Lawncare INC | 2327335 | 12 | 25 | Intrastate |
| Bls Transit And Supply INC | 2122111 | 9 | 5 | Intrastate |
| Junk King Of Pittsburgh | 2425836 | 7 | 9 | Intrastate |
| Kilbuck Builders Supply LLC | 4555909 | 7 | 7 | Interstate |
| Pittsburgh Stage INC | 1259332 | 6 | 15 | Interstate |
| Bill Thompson Utility Service | 2638433 | 6 | 3 | Intrastate |
| Jklm Energy LLC | 4230404 | 6 | 12 | Intrastate |
| Prime Contractor Supply Corporation | 4234682 | 6 | 3 | Interstate |
| Atlas Sign & Lighting LLC | 2177164 | 5 | 5 | Interstate |
| Hartman Towing And Auto Service | 1674293 | 4 | 2 | IntrastateHazmat |
| Walter Trapp Incorperated | 2484110 | 4 | 3 | Intrastate |
| Jeremy's Lawn Care & Landscaping | 3474601 | 4 | 4 | Intrastate |
| Sewickley Construction Products INC | 1656945 | 3 | 2 | Intrastate |
| Nlc Specialty Contracting LLC | 2137084 | 3 | 2 | Intrastate |
| Wick Landscape Contractors INC | 2306692 | 3 | 3 | Intrastate |
| Smith Excavation | 2980071 | 3 | 2 | Intrastate |
| Malarik's Turf Specialties | 3254882 | 3 | 3 | Intrastate |
| Ritter Concrete | 3281690 | 3 | 3 | Intrastate |
| All Equipment Repair | 1599352 | 2 | 1 | Intrastate |
| North Shore Renovations INC | 2115254 | 2 | 2 | Intrastate |
| Redmond Landscaping LLC | 2132320 | 2 | 2 | Intrastate |
| Hohman Landscaping LLC | 2187086 | 2 | 3 | Intrastate |
| Kings Lawn | 2191062 | 2 | 1 | Intrastate |
| Environmentally Sound Enterprises LLC | 2263845 | 2 | 2 | Intrastate |
| Southersby Development Corp | 2270806 | 2 | 2 | Intrastate |
| Moreth Lawn And Landscaping INC | 2460428 | 2 | 1 | Intrastate |
| Jwb Contrucstion LLC | 2487051 | 2 | 3 | Intrastate |
| N&n Landscaping LLC | 2588913 | 2 | 1 | Intrastate |
| Cutenese Lawn Service | 2591485 | 2 | 1 | Intrastate |
| Good 2 Great Lawn Care | 2779723 | 2 | 2 | Intrastate |
| Allegheny Insulation CO INC | 2811519 | 2 | 4 | Intrastate |
| Bulldog Contractors | 2887731 | 2 | 1 | Intrastate |
| Jerry Horn Construction INC | 2895838 | 2 | 3 | Intrastate |
| Es Landscaping | 3168706 | 2 | 2 | Intrastate |
| Jared Johnston Landscaping LLC | 3397413 | 2 | 3 | Intrastate |
| Trufoam LLC | 4128027 | 2 | 4 | Intrastate |
| American Industrial Contracting INC | 285 | 1 | 2 | IntrastateHazmat |
| Triangle Electrical Products | 1297396 | 1 | 1 | Intrastate |
| Tri-State Loudspeaker LLC | 1644419 | 1 | 2 | Interstate |
| A-Air Company INC | 1734802 | 1 | 1 | IntrastateHazmat |
| Korniak Excavating LLC | 2021078 | 1 | 1 | Intrastate |
| Luchette Concrete INC | 2100467 | 1 | 1 | Intrastate |
| Graff Landscaping | 2132624 | 1 | 1 | Interstate |
| Camp Meeting Excavating INC | 2174200 | 1 | 1 | Intrastate |
| J Rich Concrete LLC | 2254434 | 1 | 2 | Intrastate |
| Richard Shively Construction | 2484245 | 1 | 1 | Intrastate |
| Somerset International INC | 2591914 | 1 | 1 | Interstate |
| D & K Contracting & Excavating, LLC | 2917011 | 1 | 4 | Intrastate |
| Surface Technologies INC | 2970222 | 1 | 1 | Interstate |
| Schirnhofer Welding & Fabricating | 2986440 | 1 | 4 | Intrastate |
| Ed Wagner Pick-Up Van Parts | 3081886 | 1 | 4 | IntrastateHazmat |
| Candy Lane Acres LLC | 3407217 | 1 | 2 | Interstate |
| Iron Core Enterprises LLC | 3619799 | 1 | 1 | Intrastate |
| Cardella & Sons | 3805049 | 1 | 1 | Intrastate |
| Pve-LLC | 3922005 | 1 | 4 | Interstate |
| Ghost Hounds LLC | 4018488 | 1 | 6 | Intrastate |
| Pittsburgh Hydroseeding LLC | 4066420 | 1 | 1 | Intrastate |
| Mclaughlin Distillery | 4153469 | 1 | 2 | Intrastate |
| Alsko Trucking LLC | 4198033 | 1 | 1 | Intrastate |
| Semper Fi Contracting LLC | 4220682 | 1 | 1 | Interstate |
| Jason George Contracting INC | 4291173 | 1 | 2 | Intrastate |
| Zk Construction LLC | 4381810 | 1 | 2 | Intrastate |
| Lumberjags LLC | 4482236 | 1 | 2 | Intrastate |
| Muddy Creek Earthwork LLC | 4562973 | 1 | 4 | Intrastate |