| CPCustom Printing Inks LTD | San Diego | CA | — | ◇ UNVERIFIED |
 Custom Products, INC. | Mooresville | NC | — | ◇ UNVERIFIED |
| CRCustom Resins INC | Henderson | KY | — | ◇ UNVERIFIED |
 Custom Rubber Mix INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| CDCustopharm Development Company INC | Carlsbad | CA | — | ◇ UNVERIFIED |
| CMCybele Microbiome INC | San Diego | CA | — | ◇ UNVERIFIED |
| CCCybionex Corporation | Oceanside | CA | — | ◇ UNVERIFIED |
| CTCyclerion Therapeutics INC | Cambridge | MA | — | ◇ UNVERIFIED |
| CVCyclops Vapor LLC | Daphne | AL | — | ◇ UNVERIFIED |
| CMCypress Manufacturing Company | Salinas | CA | — | ◇ UNVERIFIED |
| CMCystetic Medicines INC | Burlingame | CA | — | ◇ UNVERIFIED |
| CMCystetic Medicines INC | San Carlos | CA | — | ◇ UNVERIFIED |
| CPCytech Products INC | Glendale | KY | — | ◇ UNVERIFIED |
| CTCytonus Therapeutics INC | San Diego | CA | — | ◇ UNVERIFIED |
| CTCytori Therapeutics | San Antonio | TX | — | ◇ UNVERIFIED |
| DID5 Ink Systems, INC. | Norwalk | CA | — | ◇ UNVERIFIED |
| DIDabblicious, INC. | Davis | CA | — | ◇ UNVERIFIED |
| DIDaesung Investment, LLC | San Diego | CA | — | ◇ UNVERIFIED |
| DDDahlin Dental Laboratory | Portland | OR | — | ◇ UNVERIFIED |
| DADak Americas Mississippi INC | Bay Saint Louis | MS | — | ◇ UNVERIFIED |
| DBDance Biopharm INC Dba Aerami Therapeutics | Union City | CA | — | ◇ UNVERIFIED |
| DAD and a Elite Dental Studio INC. | Elmont | NY | — | ◇ UNVERIFIED |
| DDDandy Dental Lehi | Lehi | UT | — | ◇ UNVERIFIED |
| DDDandy Dental Provo | Provo | UT | — | ◇ UNVERIFIED |
| DDDani Dental Studio Incorporated | Tempe | AZ | — | ◇ UNVERIFIED |
| DEDaniel E. Evanson | Manteca | CA | — | ◇ UNVERIFIED |
| DUDanisco USA INC. - Newark | Newark | DE | — | ◇ UNVERIFIED |
| DCDanvers Chemical Ind | Danvers | MA | — | ◇ UNVERIFIED |
| DADanzas Aei Intercontinental Warehouse | Laredo | TX | — | ◇ UNVERIFIED |
 Da/pro Rubber INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| DLDarricks Lab Inc. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| DCDart Container Corporation of Kentucky | Saint Joseph | KY | — | ◇ UNVERIFIED |
| DCDart Container Corporation of Kentucky Dba Dart Po | Owensboro | KY | — | ◇ UNVERIFIED |
| DHDartmouth Hitchcock Health | Hooksett | NH | — | ◇ UNVERIFIED |
| DLDasol LLC Sunshine Dental Arts | Donna | TX | — | ◇ UNVERIFIED |
| DDDassel Dental | Dassel | MN | — | ◇ UNVERIFIED |
| DCDataproducts Corporation | Chatsworth | CA | — | ◇ UNVERIFIED |
| DKDave Knox Plastics INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| DSDave Swanson | Sacramento | CA | — | ◇ UNVERIFIED |
| DDDavid Danzig Dba Cosset Bath and Body | Salt Lake City | UT | — | ◇ UNVERIFIED |
| DCDavis Compounding Solutions | Davis | CA | — | ◇ UNVERIFIED |
| DIDaw Industries | San Diego | CA | — | ◇ UNVERIFIED |
| DKDawson Knives LLC | Prescott Valley | AZ | — | ◇ UNVERIFIED |
| DKDba Kennerley-spratling INC | San Leandro | CA | — | ◇ UNVERIFIED |
| DMDba Manheim San Francisco Bay | Hayward | CA | — | ◇ UNVERIFIED |
 Dcx-chol Enterprises Newvac Division | Chatsworth | CA | — | ◇ UNVERIFIED |
| DPDdd Partnership | Sacramento | CA | — | ◇ UNVERIFIED |
| DSDdp Specialty Electronic Materials US LLC | Dalton | GA | — | ◇ UNVERIFIED |
| DTD&D Terrapin, LLC | Escondido | CA | — | ◇ UNVERIFIED |
| DMDeadline Media INC | Temecula | CA | — | ◇ UNVERIFIED |
