| — | Diamondback drilling LLC | CC5832 | Mine contractor | — |
| — | Diamondback Underground, LLC | CC9582 | Mine contractor | — |
| — | Dias Geophysical | CC6943 | Mine contractor | — |
| — | Dick Anderson Construction Inc | CULH | Mine contractor | — |
| — | Dick Irvin Trucking | CE818 | Mine contractor | — |
| — | Dickenson- Russell Contura, LLC | CJ603 | Mine contractor | — |
| — | Dickinson Hauling & Grading, Inc. | CA8259 | Mine contractor | — |
| — | Diego Vasquez | CC3512 | Mine contractor | — |
| — | Diesel Service Inc | CQBP | Mine contractor | — |
| — | Diesel Specialty, Inc. | CA1426 | Mine contractor | — |
| — | Diesel Worx | CC6436 | Mine contractor | — |
| — | Dietzler Construction Corp | CC3686 | Mine contractor | — |
| — | Digging & Rigging Inc. | CM542 | Mine contractor | — |
| — | Dinglers Equipment Repair | CB6246 | Mine contractor | — |
| — | Dinosaur Tire Service | CE314 | Mine contractor | — |
| — | Direct Force Maintenance, LLC. | CA4488 | Mine contractor | — |
| — | Direct Industrial Products | CC2732 | Mine contractor | — |
| — | Direct Scaffold | CC4901 | Mine contractor | — |
| — | Direct Scaffold-Mobile | CC5144 | Mine contractor | — |
| — | Dirt Gobblers, LLC | CA8233 | Mine contractor | — |
| — | Dirt Works Unlimited, LLC | CC6185 | Mine contractor | — |
| — | Diversified Blasthole Drilling | CA736 | Mine contractor | — |
| — | Diversified Industrial Services LLC | CB5396 | Mine contractor | — |
| — | Diversified Mechanical Solutions | CC4173 | Mine contractor | — |
| — | Diversified Project Services International | CC8227 | Mine contractor | — |
| — | Divide Constructors Inc | CXBW | Mine contractor | — |
| — | DIVIDIA TECHNOLOGIES LLC | CC7443 | Mine contractor | — |
| — | Dixie Electric Inc | CDFK | Mine contractor | — |
| — | Dixie Electric Inc. | CA2803 | Mine contractor | — |
| — | Dixie Water Service | CA446 | Mine contractor | — |
| — | Dixon Bros Inc | C8QF | Mine contractor | — |
| — | Dj'S Companies Inc | CSDV | Mine contractor | — |
| — | DK Business Properties LLC | CC0941 | Mine contractor | — |
| — | DLC Electric, LLC | CB5454 | Mine contractor | — |
| — | DLI Milling Services,Inc | CC5589 | Mine contractor | — |
| — | DMC Mining Services Corp | CWJ6 | Mine contractor | — |
| — | DMG contractors LLC | CC5065 | Mine contractor | — |
| — | DMI Contractors Inc. | CULX | Mine contractor | — |
| — | DMS Machining & Fabrication | CQ891 | Mine contractor | — |
| — | DNF INC. dba Bobcat of Reno | CC8886 | Mine contractor | — |
| — | DNT Construction, LLC | CA2002 | Mine contractor | — |
| — | Do all excavating | CB4447 | Mine contractor | — |
| — | Dobitz Construction, Inc | CC8294 | Mine contractor | — |
| — | Dobson Industrial, Inc. | CEKM | Mine contractor | — |
| — | Doddridge Controls Company, Inc | CQ7J | Mine contractor | — |
| — | Dodge Industrial | CC2920 | Mine contractor | — |
| — | Dodge Safety | CC9891 | Mine contractor | — |
| — | Dog Lake Construction, Inc | CC8921 | Mine contractor | — |
| — | Dolime Minerals Company | CH510 | Mine contractor | — |
| — | Dom-Ex, LLC | CDVZ | Mine contractor | — |
| — | Dome Technology | CNRD | Mine contractor | — |
| — | Don Keenom Excavating Inc | C9JD | Mine contractor | — |
| — | Don R Fruchey Inc | CY1D | Mine contractor | — |
| — | Don's Dust Control | CC6106 | Mine contractor | — |
| — | Don-Dell Corp | CTGS | Mine contractor | — |
| — | Donald B Rice Tire Co Inc | CPGU | Mine contractor | — |
| — | Donald Bond Construction, Inc | CM009 | Mine contractor | — |
| — | Donald L Keeney Gen Contracto | CA487 | Mine contractor | — |
| — | Donaldson Company Inc. | CA7211 | Mine contractor | — |
| — | Donaldson Company Inc. | CB6800 | Mine contractor | — |
| — | Donaldson Garrett Assoc Inc | CC755 | Mine contractor | — |
| — | Dondlinger Construction | CB7169 | Mine contractor | — |
| — | Door Doctor of Southern Illinois LLC | CA1499 | Mine contractor | — |
| — | Door Systems of Alaska, Inc. | CM389 | Mine contractor | — |
| — | Doss Engineering, Inc. | CT122 | Mine contractor | — |
| — | Doss Enterprises LLC | CB1542 | Mine contractor | — |
| — | Double D Electric | CC2596 | Mine contractor | — |
| — | Double D Mining LLC dba New Era Mining Development | CC2712 | Mine contractor | — |
| — | Double Down Heavy Repair | CA5898 | Mine contractor | — |
| — | Double Eagle Inc | CC7157 | Mine contractor | — |
| — | Double Edge, Inc. | CQ820 | Mine contractor | — |
| — | Double L Industrial Services | CB0582 | Mine contractor | — |
| — | Double O Drilling And Blasting, Inc. | CQ409 | Mine contractor | — |
| — | Double R LLC | CB3913 | Mine contractor | — |
| — | Double Wide Services | CC3192 | Mine contractor | — |
| — | Doug Glass Service Inc | CXQR | Mine contractor | — |
| — | Douglas Drilling and Blasting, LLC | CG8A | Mine contractor | — |
| — | Douglas Pipeline Company | CB0434 | Mine contractor | — |
| — | DOWL, LLC | CC0325 | Mine contractor | — |
| — | Down South Septic LLC | CC8518 | Mine contractor | — |
| — | DP Industrial, Inc. | CT225 | Mine contractor | — |
| — | DP Systems, LLC | CB1514 | Mine contractor | — |
| — | DRA Americas Inc | CC0835 | Mine contractor | — |
| — | Dragline Services LLC | CR363 | Mine contractor | — |
| — | Drake Enterprises of Marion County, Inc. | CA2174 | Mine contractor | — |
| — | Drake Field Services, LLC | CC4592 | Mine contractor | — |
| — | Drake Property Solutions | CC8158 | Mine contractor | — |
| — | Dredge America | CE290 | Mine contractor | — |
| — | Dredging Supply Company, Inc. | CX228 | Mine contractor | — |
| — | Drew Sue Inc | CMWS | Mine contractor | — |
| — | Drift Mining Company LLC | CC4510 | Mine contractor | — |
| — | Drill Management Inc | C8CX | Mine contractor | — |
| — | Drill Pro International Inc | CQHU | Mine contractor | — |
| — | Drill Tech Inc. | CS006 | Mine contractor | — |
| — | Drilling & Blasting Rock Specialist | CUUA | Mine contractor | — |
| — | Drilling 7 Blasting, Inc. | CZ368 | Mine contractor | — |
| — | Drilling Contract Services, Incorporated | CF021 | Mine contractor | — |
| — | Driltech Inc | CMKR | Mine contractor | — |
| — | Drives & Control Services | CPDQ | Mine contractor | — |
| — | DRM, Inc. | CXB2 | Mine contractor | — |
| — | Dry Lake Trucking | CE474 | Mine contractor | — |
| — | DRY RIDGE EQUIPMENT REPAIR | CC2807 | Mine contractor | — |
| — | DSC Communications | CD886 | Mine contractor | — |
| — | DSD Razorback Division, LLC | CK985 | Mine contractor | — |
| — | Dse Erectors, Inc. | CA6147 | Mine contractor | — |
| — | DSI Industrial Services, LLC | CA8685 | Mine contractor | — |
| — | DSL Electric, Inc. | CA9165 | Mine contractor | — |
| — | DT Mining & Tunneling | CC5607 | Mine contractor | — |
| — | duane consla | CW871 | Mine contractor | — |
| — | Dublin Construction Co Inc | CP9H | Mine contractor | — |
| — | Dubois County Block & Brick | CN877 | Mine contractor | — |
| — | Dubois County Tire and Supply Inc. | CZ321 | Mine contractor | — |
| — | Dubuque Barge & Fleeting Service Co dbaNewt Marine | CD0043 | Mine contractor | — |
| — | Dudley & Dudley Hauling | CA4863 | Mine contractor | — |
| — | Duke Engineering Company | CP606 | Mine contractor | — |
| — | Dull Knife Equipment Services LLC | CB2316 | Mine contractor | — |
| — | Dumas Contracting Ltd. | CN089 | Mine contractor | — |
| — | Duncan Electrical Services Inc | CC8529 | Mine contractor | — |
| — | Dunn Construction Co Inc | CRHZ | Mine contractor | — |
| — | Dunn Construction Inc. | CA4282 | Mine contractor | — |
| — | Durrett Transport, LLC. | CB7101 | Mine contractor | — |
| — | Durus Industrial | CA3582 | Mine contractor | — |
| — | Duster Trucking Co. | CR565 | Mine contractor | — |
| — | dustin e brooks trucking | CA2350 | Mine contractor | — |
| — | Dustin Gardner DBA Hawk Lawn Maintenance | CC6305 | Mine contractor | — |
| — | Dusty Yocham Companies LLC | CC5036 | Mine contractor | — |
| — | Dutcher-Phipps Crane & Rigging Co | CQ366 | Mine contractor | — |
| — | DW CONSTRUCTION AND EQUIPMENT | CC7517 | Mine contractor | — |
| — | DW Equipment Repairs, LLC | CC7434 | Mine contractor | — |
| — | Dwain's concrete | CA9102 | Mine contractor | — |
| — | Dwite C. Forbush Inc | CE164 | Mine contractor | — |
| — | DXP Industrial Distribution Experts | CB906 | Mine contractor | — |
| — | Dykman Electrical Inc | CB937 | Mine contractor | — |
| — | Dylan Gordon Diesel Services LLC | CC8182 | Mine contractor | — |
| — | Dynamic Drilling Inc | CVKP | Mine contractor | — |
| — | Dynamic Hydraulic Service Company LLC | CB7967 | Mine contractor | — |
| — | Dynamic Plant Services | CC5098 | Mine contractor | — |
| — | Dynamic Safety & Training | CC5930 | Mine contractor | — |
| — | DYNAMO ELECTRIC LLC | CC7223 | Mine contractor | — |
| — | Dynapower Company | CA8528 | Mine contractor | — |
| — | Dyno Nobel | CS44 | Mine contractor | — |
| — | Dyno Nobel Transportation Inc | C8WH | Mine contractor | — |
| — | Dyson Conveyor Maintenance Inc | CKV9 | Mine contractor | — |
| — | E & C Electrical Service, Inc. | CS183 | Mine contractor | — |
| — | E B and H Electrical, LLC | CB6514 | Mine contractor | — |
| — | E FIRE INC | CC6079 | Mine contractor | — |
| — | E Solutions | CB4684 | Mine contractor | — |
| — | E T Balancing Inc | C2ZK | Mine contractor | — |
| — | E T Kimble & Co., Inc | CC8998 | Mine contractor | — |
| — | E Technologies Group LLC | CA5792 | Mine contractor | — |
| — | E-CRANE International, Inc. | CY641 | Mine contractor | — |
| — | E.A. Glass | CA6388 | Mine contractor | — |
| — | E/G Testing LLC | CW929 | Mine contractor | — |
| — | Eades General Contracting, LLC | CC0892 | Mine contractor | — |
| — | Eadie's Industrial Inc | CB6691 | Mine contractor | — |
| — | Eagle Carbon, Inc. | CE384 | Mine contractor | — |
| — | Eagle Crusher Company | CA1664 | Mine contractor | — |
| — | Eagle Electric | CR904 | Mine contractor | — |
| — | Eagle Mine Safety | CG725 | Mine contractor | — |
| — | Eagle Services Corporation | CX432 | Mine contractor | — |
| — | Earl Ponder | CNUI | Mine contractor | — |
| — | Earl'S Drilling Service Inc | CA186 | Mine contractor | — |
| — | Earll Excavation, Inc. | CA1181 | Mine contractor | — |
| — | Earth Systems, LLC | CC5332 | Mine contractor | — |
| — | Earth Tech Enterprises, Inc. | CL558 | Mine contractor | — |
| — | Earth Work Solutions | CUN8 | Mine contractor | — |
| — | Earth, Inc. | CA5865 | Mine contractor | — |
| — | Earthtech Inc | CU8T | Mine contractor | — |
| — | Earthworks Excavation Inc | CB9867 | Mine contractor | — |
| — | East Coast Drilling & Blasting, Inc. | CR316 | Mine contractor | — |
| — | East Coast Vehicle Services, LLC | CA6870 | Mine contractor | — |
| — | East Kentucky Vulcanizing Inc | C1ID | Mine contractor | — |
| — | East West Drilling Inc. | CC3380 | Mine contractor | — |
| — | Eastcom Utility Contractors Inc. | CA9220 | Mine contractor | — |
| — | Easterly's Equipment Repair | CC8488 | Mine contractor | — |
| — | Eastern Lift Truck Company Incorporated | CA6514 | Mine contractor | — |
| — | Eastern mechanical INC | CA9849 | Mine contractor | — |
| — | Eastland County | CW794 | Mine contractor | — |
| — | Eastland Crane | CC4941 | Mine contractor | — |
| — | Eastrock Equipment Inc | CC2009 | Mine contractor | — |
| — | Easy Way Insulation Company | CRPA | Mine contractor | — |
| — | Eaton Asphalt | CC6944 | Mine contractor | — |
| — | Eau Claire Cooperative Oil Company | CA5739 | Mine contractor | — |
| — | Eaves Construction Co Inc | CWRJ | Mine contractor | — |
| — | Ec Company | CD019 | Mine contractor | — |
| — | ECCO Equipment Company LLC | CC8933 | Mine contractor | — |
| — | Echeverria's | CPAN | Mine contractor | — |
| — | Eckert Services | CC5520 | Mine contractor | — |
| — | Eclipse Companies LLC. | CC9313 | Mine contractor | — |
| — | ECN Automation Inc. | CB1876 | Mine contractor | — |
| — | Economy Home Builders | CW878 | Mine contractor | — |
| — | ecosilt sediment control llc | CC0308 | Mine contractor | — |
| — | EcoTech Environmental LLC | CA5027 | Mine contractor | — |
| — | ECOVAP | CB9970 | Mine contractor | — |
| — | Ed Arnold Drilling | CCHX | Mine contractor | — |
| — | Ed Wean Drilling and Blasting, LLC | CU534 | Mine contractor | — |
| — | Ed's Drilling and Blasting | CFZ4 | Mine contractor | — |
| — | Edds Water Transport | CZTK | Mine contractor | — |
| — | Edgerton Contractors Inc | CX099 | Mine contractor | — |
| — | Edgerton Service & Equipment,LLC | CB7452 | Mine contractor | — |
| — | Eds Hauling | CT342 | Mine contractor | — |
| — | Edward Janus | CC7994 | Mine contractor | — |
| — | Edwards Inc | C2MX | Mine contractor | — |
| — | Edwards Oil Inc | CRSE | Mine contractor | — |
| — | Edwin Koons Arc Struck Welding | CP943 | Mine contractor | — |
| — | Eggers Construction | CB0662 | Mine contractor | — |
| — | EGI Mechanical, Inc. | CA2381 | Mine contractor | — |
| — | EGT Testing | CB4522 | Mine contractor | — |
| — | Eichinger | CB3177 | Mine contractor | — |
| — | Eidson Welding & Fabrication | CC5389 | Mine contractor | — |
| — | Eitel Trucking | CD993 | Mine contractor | — |
| — | EJ's Equipment & Truck Repair | CC6370 | Mine contractor | — |
| — | EJB Equipment Repair LLC | CC6611 | Mine contractor | — |
| — | Elaine Stine Trucking Inc | CA891 | Mine contractor | — |
| — | Elbe Equipment | C6QZ | Mine contractor | — |
| — | Elby Harrison Trucking, Inc. | C5YF | Mine contractor | — |
| — | Electric Motor Shop | CT389 | Mine contractor | — |
| — | Electrical Contractors Inc | CHZJ | Mine contractor | — |
| — | Electrical Engineering Enterprise | CN964 | Mine contractor | — |
| — | Electrical Maintenance & Construction | CC9595 | Mine contractor | — |
| — | Electrical Reliability Services | CLBW | Mine contractor | — |
| — | Electrical Specialists of Iowa LLC | CB9314 | Mine contractor | — |
| — | Electrical Systems Company, LLC | CA6133 | Mine contractor | — |
| — | Electrically Connected Inc | CA606 | Mine contractor | — |
| — | Electro Design Engineering, Inc. | CQ772 | Mine contractor | — |
| — | Electro Industrial Inc | C9DC | Mine contractor | — |
| — | Elite Automation & Electrical Services Inc. | CC7460 | Mine contractor | — |
| — | Elite Earthworks and Engineering | CC4697 | Mine contractor | — |
| — | Elite Industrial LLC | CB3190 | Mine contractor | — |
| — | Elite Railcar Repair | CB6922 | Mine contractor | — |
| — | Elite Refractory, LLC | CB8225 | Mine contractor | — |
| — | Elk Electrical Systems, LLC | CC7760 | Mine contractor | — |
| — | Elk Run Coal Company - Elk Run Line Crew | CA2168 | Mine contractor | — |
| — | Elko Tool & Fastener | C1IJ | Mine contractor | — |
| — | Elko Wire Rope | CB5637 | Mine contractor | — |
| — | Ellicott Dredge Technologies, LLC | CA3183 | Mine contractor | — |
| — | Elliot Machine Shop, Inc | CQ8B | Mine contractor | — |
| — | Ellis Welding | CB0161 | Mine contractor | — |
| — | Elm Electrical Inc | CDQ2 | Mine contractor | — |
| — | Elohi Construction, LLC | CC6040 | Mine contractor | — |
| — | EM Plant Services LLC | CB9815 | Mine contractor | — |
| — | Emadol Industries | CC8975 | Mine contractor | — |
| — | Embry Enterprises Inc. | CP313 | Mine contractor | — |
| — | Emery Sapp & Son | C3ZI | Mine contractor | — |
| — | Emlex Construction Co Inc | C4MS | Mine contractor | — |
| — | Empire Crushing LLC | CC6379 | Mine contractor | — |
| — | Empire Fire Equipment | CC9509 | Mine contractor | — |
| — | Empire Rubber & Supply Company | CV454 | Mine contractor | — |
| — | Empire Southwest LLC | CLU6 | Mine contractor | — |
| — | Empresas Ortiz Brunet, Inc. | CB8137 | Mine contractor | — |
| — | EMS INDUSTRIAL, INC. | CA7781 | Mine contractor | — |
| — | Encon Commercial Services, LLC | CK544 | Mine contractor | — |
| — | ENDECO Construction INC. | CC7328 | Mine contractor | — |
| — | Endicott Woods | CX687 | Mine contractor | — |
| — | Endress+Hauser, Inc | CC7852 | Mine contractor | — |
| — | Enebak Construction Company | CXRI | Mine contractor | — |
| — | Energy Management Corporation | CB4220 | Mine contractor | — |
| — | Energy Technologies Inc | CYYI | Mine contractor | — |
| — | Enersys | CMZM | Mine contractor | — |
| — | Engineer, Procure, Construct LLC | CB6674 | Mine contractor | — |
| — | Engineered Air Systems Inc | C5MR | Mine contractor | — |
| — | Engineering and Construction Innovations,Inc. | CA6477 | Mine contractor | — |
| — | Engineering Seismology Group Canada, Inc. | CC5328 | Mine contractor | — |
| — | Enginova Inc. | CB5446 | Mine contractor | — |
| — | Englefield Oil Company | CB4247 | Mine contractor | — |
| — | Enpuricon, Inc. | CB7165 | Mine contractor | — |
| — | Enterprises of J&J, LLP | CC5434 | Mine contractor | — |
| — | Enviro-Tek, LLC | CC8404 | Mine contractor | — |
| — | EnviroCare International, Inc. | CB9726 | Mine contractor | — |
| — | Envirolectric LLC | CB9135 | Mine contractor | — |
| — | Environmental Commodities Corporation | CA9911 | Mine contractor | — |
| — | Environmental Consulting & Technology, Inc | CQ485 | Mine contractor | — |
| — | Environmental Specialists Inc | CB8211 | Mine contractor | — |
| — | Environmental Specialties International, Inc. | CM497 | Mine contractor | — |
| — | Environmental Troubleshooters Inc | CA1156 | Mine contractor | — |
| — | Environmental Works Inc. | CB9164 | Mine contractor | — |
| — | Environmental, Engineering & Measurement Services | CC6549 | Mine contractor | — |
| — | Envirosmart Inc. | CB8779 | Mine contractor | — |
| — | Envirotech Drilling LLC | CV408 | Mine contractor | — |
| — | Envirotech Services Inc. | CA8423 | Mine contractor | — |
| — | EnviroVac LLC | CE713 | Mine contractor | — |
| — | EOBR Global, Inc. | CC5755 | Mine contractor | — |
| — | EOM Industrial | CC0496 | Mine contractor | — |
| — | EPIC Services | CC3412 | Mine contractor | — |
| — | Epiroc USA LLC | CG484 | Mine contractor | — |
| — | Epling Lanscaping & Lawn Service, Inc. | CA9724 | Mine contractor | — |
| — | Epps Welding & Line Boring, LLC | CB7948 | Mine contractor | — |
| — | Epromi Services LLC | CC9516 | Mine contractor | — |
| — | EPSA USA Projects, Corporation | CA2021 | Mine contractor | — |
| — | Equi-Nex Energy Services | CC8179 | Mine contractor | — |
| — | Equilibrium Mining Incorporated | CC6150 | Mine contractor | — |
| — | Equipment Pro, Inc. | CN249 | Mine contractor | — |
| — | Equipment Repair Company | CA7567 | Mine contractor | — |
| — | Equipment repair service | CC8301 | Mine contractor | — |
| — | Equipment World Inc | C2AR | Mine contractor | — |
| — | EquipmentShare | CC1203 | Mine contractor | — |
| — | Er industrial repair | CC2562 | Mine contractor | — |
| — | Erb Electric | C5KD | Mine contractor | — |
| — | Erbco, LLC | CC8126 | Mine contractor | — |
| — | Erfurt Blasting Company, Inc. | CJQ3 | Mine contractor | — |