| — | Powerhouse Communications LLC | CC7658 | Mine contractor | — |
| — | Powerhouse Electric Inc | CN750 | Mine contractor | — |
| — | Powerhouse Steel Works LLC | CC7805 | Mine contractor | — |
| — | Powerscreen Mid-Atlantic, Inc. | CH344 | Mine contractor | — |
| — | PowerTec Distribution & Motor Control Corporation | CC8599 | Mine contractor | — |
| — | Powervac of Michigan LLC dba Blue Water Environmen | CJ432 | Mine contractor | — |
| — | PowerX | CC8390 | Mine contractor | — |
| — | PPM Scales South Central, Inc. | CC9122 | Mine contractor | — |
| — | PR Worth, Inc. | CB2603 | Mine contractor | — |
| — | Prairie Electric | CSCR | Mine contractor | — |
| — | Prairie State Sales Company | CB4527 | Mine contractor | — |
| — | PRC Industrial Supply | CC1336 | Mine contractor | — |
| — | Precision Drilling Inc | CQ7X | Mine contractor | — |
| — | Precision Electric and Control | CC5164 | Mine contractor | — |
| — | Precision Heavy Haul Inc | CR946 | Mine contractor | — |
| — | Precision Industrial Maintenance, Inc. | CX594 | Mine contractor | — |
| — | Precision Mining Services | CC8639 | Mine contractor | — |
| — | Precision Product Tech Inc | CTHA | Mine contractor | — |
| — | Precision Scale & Controls, Inc. | CA6537 | Mine contractor | — |
| — | Precision Service & Sales Inc | C3TB | Mine contractor | — |
| — | Precision Services Inc. | CC4742 | Mine contractor | — |
| — | Precision Systems Engineering, Inc. | CJ967 | Mine contractor | — |
| — | Precision Terminal Logistics | CU765 | Mine contractor | — |
| — | Precision Testing Lab, Inc. | CS2K | Mine contractor | — |
| — | Precision Wildlife Resources, LLC | CB4832 | Mine contractor | — |
| — | Precision Wrench LLC | CC3479 | Mine contractor | — |
| — | Predator Trucking Co | C7SX | Mine contractor | — |
| — | Premier Concrete Inc | CB473 | Mine contractor | — |
| — | Premier Diesel Repair | CC3636 | Mine contractor | — |
| — | Premier Dredging | CC2438 | Mine contractor | — |
| — | Premier Drilling | CB3535 | Mine contractor | — |
| — | Premier Equipment Inc. | CB0608 | Mine contractor | — |
| — | Premier Industrial Services, LLC. | CB9898 | Mine contractor | — |
| — | Premier Power Professionals, Inc. | CL058 | Mine contractor | — |
| — | Premier, LLC | CB5774 | Mine contractor | — |
| — | Premium Plant Services, LLC. | CA1575 | Mine contractor | — |
| — | Prescott Industrial Services | CC5112 | Mine contractor | — |
| — | Press Rentals LLC | CB5059 | Mine contractor | — |
| — | Prestige Industrial Services LLC | CC5290 | Mine contractor | — |
| — | Preston Contractors Inc | CNSD | Mine contractor | — |
| — | Preventative Reliable Maintenance, LLC | CB5930 | Mine contractor | — |
| — | Pride Development & Construction, Inc. | CA4147 | Mine contractor | — |
| — | Pride Equipment LLC | CC8238 | Mine contractor | — |
| — | Prim Coatings Incorporated | CC8519 | Mine contractor | — |
| — | Primary Safety Services | CC6731 | Mine contractor | — |
| — | Primary Sensors Inc. | CQ484 | Mine contractor | — |
| — | PRIME ELECTRIC LLC | CF848 | Mine contractor | — |
| — | Prime Field Service | CE480 | Mine contractor | — |
| — | Prime Industrial Access, LLC | CB3472 | Mine contractor | — |
| — | Prime Industrial LLC | CC9009 | Mine contractor | — |
| — | Primoris Energy Services | CNHA | Mine contractor | — |
| — | Priority One Safety Training | CC9484 | Mine contractor | — |
| — | PRISM Professional Service Group LLC. | CC9986 | Mine contractor | — |
| — | Pro Lawn Care and Landscaping LLC | CB5429 | Mine contractor | — |
| — | Pro Millwright & Welding LLC | CB9871 | Mine contractor | — |
| — | Pro Turf Inc. | CD612 | Mine contractor | — |
| — | Pro-Rooter Welding, Inc. | CB4663 | Mine contractor | — |
| — | Proactive Solutions, Inc | CC9364 | Mine contractor | — |
| — | Process & Power Incorporated | CB1071 | Mine contractor | — |
| — | Process Equipment Co | CKRU | Mine contractor | — |
| — | Process Machinery Inc | CAP6 | Mine contractor | — |
| — | Production LLC | CC6795 | Mine contractor | — |
| — | Proelectric Inc | CSQL | Mine contractor | — |
| — | Professional Highwall Mining Services, LLC | CB0567 | Mine contractor | — |
| — | Professional Metal Fabricators | CC0434 | Mine contractor | — |
| — | Professional Scaffold Service | CC1974 | Mine contractor | — |
| — | Professional Service & Repair, Inc. | CU627 | Mine contractor | — |
| — | Profi-Vision Inc | CA5333 | Mine contractor | — |
| — | Progressive Industrial Electrical Inc. | CV391 | Mine contractor | — |
| — | ProIndustrial, Inc. | CG340 | Mine contractor | — |
| — | ProLine Machining, LLC | CA9377 | Mine contractor | — |
| — | Promace Industrial Services LLC | CC6326 | Mine contractor | — |
| — | Pronto.ai, Inc | CC0522 | Mine contractor | — |
| — | Pros, Inc. | CA4782 | Mine contractor | — |
| — | ProStar Mining LLC | CC2725 | Mine contractor | — |
| — | Proudfoot Trucking Co. LLC | CLUC | Mine contractor | — |
| — | Provo Mining and Construction | CB9774 | Mine contractor | — |
| — | PSC Group | CC6101 | Mine contractor | — |
| — | Puckett Machinery | CS519 | Mine contractor | — |
| — | Pueblo Mechanical & Controls, Inc. | CA2097 | Mine contractor | — |
| — | PumpEng LLC | CC7790 | Mine contractor | — |
| — | Purcell Tire & Rubber Co. | CLMD | Mine contractor | — |
| — | Pursell Holdings, LLC | CB9115 | Mine contractor | — |
| — | PURYEAR TANK LINES | CB0669 | Mine contractor | — |
| — | Puryear Transport Inc. | CA1796 | Mine contractor | — |
| — | PVB FABRICATIONS, INC. | CU314 | Mine contractor | — |
| — | Pye Barker Fire & Safety Inc | CY159 | Mine contractor | — |
| — | Pye-Barker Fire and Safety LLC | CB3490 | Mine contractor | — |
| — | Pyott-Boone Electronics | CGW2 | Mine contractor | — |
| — | Q&D Construction, Inc | CT632 | Mine contractor | — |
| — | Q.P.C. Quality Product Co., Inc. | CE173 | Mine contractor | — |
| — | QBM New York Inc. | CD761 | Mine contractor | — |
| — | QBQ Industries, LLC | CB9895 | Mine contractor | — |
| — | QSP Utility LLC | CB6126 | Mine contractor | — |
| — | Quaker Chemical Corporation | CY501 | Mine contractor | — |
| — | Quality Compressed Air Services, Inc. | CX422 | Mine contractor | — |
| — | Quality Conveyor Solutions, LLC | CB3109 | Mine contractor | — |
| — | QUALITY DRILLING & BLASTING, LLC | CL449 | Mine contractor | — |
| — | Quality Electric Inc | CC2500 | Mine contractor | — |
| — | Quality Environmental Services | CMKJ | Mine contractor | — |
| — | Quality Industrial Construction, LLC | CB8625 | Mine contractor | — |
| — | Quality Janitorial | C4JC | Mine contractor | — |
| — | Quality Mechanical Repair LLC | CC3067 | Mine contractor | — |
| — | Quality Reclamation Services L.L.C. | CB284 | Mine contractor | — |
| — | Quality Stone | CE300 | Mine contractor | — |
| — | Quality Transportation Inc | CA2015 | Mine contractor | — |
| — | Quality Truck Services, LLC | CX535 | Mine contractor | — |
| — | Quantum Industries | CB5255 | Mine contractor | — |
| — | Quarry & Mine Safety Consulting LLC | CB8519 | Mine contractor | — |
| — | Quarry Products | CA2637 | Mine contractor | — |
| — | Quarry Services | CC188 | Mine contractor | — |
| — | Querrey Industrial Services, Inc. | CH576 | Mine contractor | — |
| — | Quick Illinois Inc dba Quick Supply Co. | CC1252 | Mine contractor | — |
| — | Quick Michigan Inc dba Quick Supply Co. | CT738 | Mine contractor | — |
| — | Quick Minnesota Inc dba Quick Supply Co. | CM7B | Mine contractor | — |
| — | Quick North Carolina Inc dba Quick Supply Co | CC1985 | Mine contractor | — |
| — | Quick Sand & Fill Corp | CTAB | Mine contractor | — |
| — | Quick Supply Co | CS2B | Mine contractor | — |
| — | Quincy Compressor | CB5145 | Mine contractor | — |
| — | Quincy Fire Eqp Inc | C2RU | Mine contractor | — |
| — | Quinn Group, Inc. | CKDT | Mine contractor | — |
| — | R & B Drilling | CR320 | Mine contractor | — |
| — | R & C Mechanical, LLC | CM447 | Mine contractor | — |
| — | R & H Equipment Repair & Welding | CB2075 | Mine contractor | — |
| — | R & K Excavation, Inc. | C2KE | Mine contractor | — |
| — | R & N Recycling | CC059 | Mine contractor | — |
| — | R & R Erectors, Inc. | CQ476 | Mine contractor | — |
| — | R & R Trucking & Towing, Inc. | CT3K | Mine contractor | — |
| — | R A M Drilling | CGRX | Mine contractor | — |
| — | R and J Manufacturing | CB9454 | Mine contractor | — |
| — | R AND M Security, LLC | CC3731 | Mine contractor | — |
| — | R and R Auto Wrecking Inc | CC6792 | Mine contractor | — |
| — | R and R Scales | CB9667 | Mine contractor | — |
| — | R B Jergens Contractors Inc | CSHD | Mine contractor | — |
| — | R Baker Enterprise Llc | CC4721 | Mine contractor | — |
| — | R C Kadyk Corp | CAAU | Mine contractor | — |
| — | R Clark & Sons Construction, LLC | CC9913 | Mine contractor | — |
| — | R D Maintenance | CC9185 | Mine contractor | — |
| — | R D O Equipment Company | CB453 | Mine contractor | — |
| — | R E Goodson Const Co Inc | CP2A | Mine contractor | — |
| — | R F Macdonald Co | C2SD | Mine contractor | — |
| — | R G Johnson Co Inc | CC19 | Mine contractor | — |
| — | R H Mcgirt Trucking Co | C8DX | Mine contractor | — |
| — | R J Corman Railroad Company | CB9289 | Mine contractor | — |
| — | R J Corman Railroad Services | CB4367 | Mine contractor | — |
| — | R M Wilson Co Inc | CYLM | Mine contractor | — |
| — | R S S Field Services Inc | CB701 | Mine contractor | — |
| — | R S T Crane | CN727 | Mine contractor | — |
| — | R tulba Welding & Fabrication | CB4958 | Mine contractor | — |
| — | R&C Cooper Construction Inc | CC9172 | Mine contractor | — |
| — | R&L Engineering, Inc. | CA2388 | Mine contractor | — |
| — | R&P Repair, LLC | CC1713 | Mine contractor | — |
| — | R&R Demolition and Recycling, LLC | CC6127 | Mine contractor | — |
| — | R&R Equipment Services | CB7600 | Mine contractor | — |
| — | R&R Fabrication | CC4640 | Mine contractor | — |
| — | R&R Glass Sales & Service, INC. | CK777 | Mine contractor | — |
| — | R&R Landscaping | CA2714 | Mine contractor | — |
| — | R&S Industrial Field Services | CA3225 | Mine contractor | — |
| — | R&S Overhead Doors of Inland Empire, Inc | CC6633 | Mine contractor | — |
| — | R&S Sweeping Co. LLC | CA1425 | Mine contractor | — |
| — | R. Baker, Inc. | CB2870 | Mine contractor | — |
| — | R. Clark & Sons Contracting, LLC | CC9075 | Mine contractor | — |
| — | R. J. Corman | CB8686 | Mine contractor | — |
| — | R. J. Jurowski Construction, Inc. | CB7159 | Mine contractor | — |
| — | R. Lafferty & Son, Inc. | CS855 | Mine contractor | — |
| — | R. S. Snyder Enterprises, Inc. | CW519 | Mine contractor | — |
| — | R.A. Alexander & Sons, Inc. | CC7504 | Mine contractor | — |
| — | R.A.M. Trucking LLC | CP338 | Mine contractor | — |
| — | R.E.D. Plumbing | CC7713 | Mine contractor | — |
| — | R.F. Roberts Construction, Inc | CS426 | Mine contractor | — |
| — | R.F.B | CC3099 | Mine contractor | — |
| — | R.J. Wright &Sons ltd. | CR708 | Mine contractor | — |
| — | R.L. McNair & Son | CB2735 | Mine contractor | — |
| — | R.LAGO CORPORATION | CC3615 | Mine contractor | — |
| — | R.M. PIPER INC. | CF100 | Mine contractor | — |
| — | R.W. Turner & Sons Pump & Windmill Co., Inc. | CA2034 | Mine contractor | — |
| — | Rabalais Constructors, LLC | C9KC | Mine contractor | — |
| — | Rackers Equipment Company | CC774 | Mine contractor | — |
| — | Radiation Solutions LLC | CB7086 | Mine contractor | — |
| — | Radotich Inc. | CX1X | Mine contractor | — |
| — | Radtech Systems L.L.C | CC6086 | Mine contractor | — |
| — | Rafter J Industries LLC | CC9648 | Mine contractor | — |
| — | Rail Link Inc | CJVU | Mine contractor | — |
| — | Rail Scale, Inc. | CQ606 | Mine contractor | — |
| — | Rail Transportation Solutions Inc. | CB2770 | Mine contractor | — |
| — | RAILWAY SERVICE CONTRACTORS, INC | CC9548 | Mine contractor | — |
| — | Railway Siding Corp | CA0102 | Mine contractor | — |
| — | RailWorks Track Systems LLC | C9ST | Mine contractor | — |
| — | Raimonde Drilling Corporation | CFNS | Mine contractor | — |
| — | Rain-For-Rent | CVVG | Mine contractor | — |
| — | Rainbow Energy Center | CSZ7 | Mine contractor | — |
| — | Raisebor Inc | CBXD | Mine contractor | — |
| — | Ralco Electric Inc | CB793 | Mine contractor | — |
| — | Raleigh Steel Construction Inc | C2RY | Mine contractor | — |
| — | Ralph E Williamson Trucking | CI19 | Mine contractor | — |
| — | Ralph L Wadsworth Const Co In | CV6V | Mine contractor | — |
| — | RAM Enterprise, Inc. | CNLD | Mine contractor | — |
| — | Rambo Sand & Gravel Inc | CLK7 | Mine contractor | — |
| — | Ramboll Environ US Corporation | CB3053 | Mine contractor | — |
| — | Rame Contracting | CC6482 | Mine contractor | — |
| — | Ramirez Trucking | CR344 | Mine contractor | — |
| — | Rampart Supply | CA5262 | Mine contractor | — |
| — | Rampco Construction Co Inc | CC6958 | Mine contractor | — |
| — | Ramseyer Excavating | CXUY | Mine contractor | — |
| — | Rand Welding & Fabrication | CC2554 | Mine contractor | — |
| — | Randall's Welding | CS371 | Mine contractor | — |
| — | Randle Brothers Inc | CKMP | Mine contractor | — |
| — | Randol Industrial Electronics,LLC | CB6119 | Mine contractor | — |
| — | Randy Stiles Construction | CC5753 | Mine contractor | — |
| — | Randy Whittington Trucking, Inc. | CZ150 | Mine contractor | — |
| — | Range Cornice & Roofing Co | CDP7 | Mine contractor | — |
| — | Range Cornice Heating & Sheet Metal | CJ289 | Mine contractor | — |
| — | Range Environmental Resources | CB8776 | Mine contractor | — |
| — | Range Furnce Cleaning | CKL2 | Mine contractor | — |
| — | Rango Inc | CQ796 | Mine contractor | — |
| — | Rango West | CW479 | Mine contractor | — |
| — | Raocat Rubber Inc | CBRW | Mine contractor | — |
| — | Rapid Response Railroad Consulting & Service, LLC | CC0613 | Mine contractor | — |
| — | Rapid Track Service, Inc. | CE410 | Mine contractor | — |
| — | Rasmussen Air and Gas Energy | CB8759 | Mine contractor | — |
| — | Rasmussen Electric Inc. | CV273 | Mine contractor | — |
| — | Rasmussen Mechanical Services | CA3362 | Mine contractor | — |
| — | RASP Inc. | CB3480 | Mine contractor | — |
| — | Ratech Construction Company | CH666 | Mine contractor | — |
| — | RATLIFFS DIESEL SERVICE & REPAIR LLC | CC5559 | Mine contractor | — |
| — | Rattlesnake Exterminating | CA7519 | Mine contractor | — |
| — | Raw Field Services, LLC | CC5018 | Mine contractor | — |
| — | RAW RESOURCES, LLC | CA9979 | Mine contractor | — |
| — | RAW Welding Inc. | CC6058 | Mine contractor | — |
| — | Rawson Transport, Inc. | CA5362 | Mine contractor | — |
| — | Ray Mayone Construction | CJLR | Mine contractor | — |
| — | Ray Sisco Construction Co Inc | CD051 | Mine contractor | — |
| — | Ray's Mechanical LLC | CF691 | Mine contractor | — |
| — | RB Equipment & Service | CM347 | Mine contractor | — |
| — | RB Machine & Fabrication | CB2043 | Mine contractor | — |
| — | RB Scott Inc | CA0937 | Mine contractor | — |
| — | RCC Services, Inc. | CB8521 | Mine contractor | — |
| — | RCD, Inc. | CK943 | Mine contractor | — |
| — | RCS Construction Inc. | CA1861 | Mine contractor | — |
| — | RCS Grading | CC8407 | Mine contractor | — |
| — | RDG Welding Service LLC | CC6567 | Mine contractor | — |
| — | RE Chaffee Construction | CC1901 | Mine contractor | — |
| — | RE Electric LLC | CB3287 | Mine contractor | — |
| — | RE GENERAL MAINTENANCE SERVICESCORP. | CB4733 | Mine contractor | — |
| — | RE/SPEC Inc. | CA4644 | Mine contractor | — |
| — | READING BDS | CC0888 | Mine contractor | — |
| — | Reading Fracture Incorporated | CL272 | Mine contractor | — |
| — | Reading Site Contractors | CS617 | Mine contractor | — |
| — | Ready Electric | CA1534 | Mine contractor | — |
| — | Ready Mix Concrete, Inc. | CU124 | Mine contractor | — |
| — | Reality welding | CA9337 | Mine contractor | — |
| — | Rebel oil Co DBA ROC | CX218 | Mine contractor | — |
| — | Reco Equipment Inc | CD4E | Mine contractor | — |
| — | RECO Parts | CB0093 | Mine contractor | — |
| — | RECON | CX804 | Mine contractor | — |
| — | Recon Refractory & Construction | CNWB | Mine contractor | — |
| — | Recovery Drilling | CC5859 | Mine contractor | — |
| — | Recycled Aggregates | CC6714 | Mine contractor | — |
| — | Red Iron Works, LLC | CC8195 | Mine contractor | — |
| — | Red Light Express, Inc | CB8242 | Mine contractor | — |
| — | Red River Ranch | CD382 | Mine contractor | — |
| — | Redeemed Industrial services | CC4921 | Mine contractor | — |
| — | Redeemer Resources LLC | CC9836 | Mine contractor | — |
| — | Redi Industrial | CC8370 | Mine contractor | — |
| — | Redi Inspection Services, LLC | CB6264 | Mine contractor | — |
| — | Redi Services, LLC | CM586 | Mine contractor | — |
| — | Redi-Cycle LLC | CA8815 | Mine contractor | — |
| — | Redline Technical Services LLC | CC7143 | Mine contractor | — |
| — | Redmond Minerals Co. | CB2819 | Mine contractor | — |
| — | Redpath USA Corporation | CR83 | Mine contractor | — |
| — | Redstone Construction | CD0018 | Mine contractor | — |
| — | Reed materials | CC7628 | Mine contractor | — |
| — | REELSafe Safety | CC7752 | Mine contractor | — |
| — | Refractory Removal Services In | CXBC | Mine contractor | — |
| — | Refratechnik North America Inc. | CW571 | Mine contractor | — |
| — | Refreshed Fleet Detailing | CA0706 | Mine contractor | — |
| — | Regal Safety LLC. | CC6776 | Mine contractor | — |
| — | Reglin Trucking LLC | CC6949 | Mine contractor | — |
| — | REI Drilling, Inc. | CMGF | Mine contractor | — |
| — | Reilly Construction Co Inc | C7GL | Mine contractor | — |
| — | RelaDyne Reliability Services | CX196 | Mine contractor | — |
| — | Relentless quality repairs llc. | CC3091 | Mine contractor | — |
| — | Reliable Controls Corp | CA0675 | Mine contractor | — |
| — | Reliable Fire Equipment Company | CQ226 | Mine contractor | — |
| — | Reliable Liquid Transport Inc | CB080 | Mine contractor | — |
| — | Reliable Maintenance Solutions | CR583 | Mine contractor | — |
| — | Reliable Plant Maintenance | CA1485 | Mine contractor | — |
| — | Reliable Plant Maintenance, LLC. | CC3454 | Mine contractor | — |
| — | Reliance Crane & Hoist Inc | CC2143 | Mine contractor | — |
| — | Reliance Fire & Security, Inc. | CX681 | Mine contractor | — |
| — | Reliant Well Drilling and Pump Corporation | CB8312 | Mine contractor | — |
| — | RelyCo Plus, LLC | CC9927 | Mine contractor | — |
| — | Rema Tip Top North America, Inc. | CL488 | Mine contractor | — |
| — | Rembco Geotechnical Contractors | CP178 | Mine contractor | — |
| — | Remco Equipment Company | CA0429 | Mine contractor | — |
| — | Remsel Corp | CB2970 | Mine contractor | — |
| — | Rend Lake Plumbing & Heating | CS3F | Mine contractor | — |
| — | Rendt Inc. | CA2789 | Mine contractor | — |
| — | Renegade Equipment Services | CC3616 | Mine contractor | — |
| — | Renegade Field Service LLC | CC7289 | Mine contractor | — |