| Copperweld Industries International, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cornell & Company, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Corrado Bros., Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Corry Lodge No. 98 Loyal Order of Moose, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Nonprofit | Not reported | Not reported |
| Cory Steak, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cost, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| L. R. Costanzo Company, IncorporatedHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cotton-hanlon IncHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cove Haven, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cresline Plastic Pipe Co., Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| The Crest CorporationHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Reid Stores, LlcHarrisburg, PA · Not reported | Harrisburg, PA | LLC | Not reported | Not reported |
| Cross & Brown CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Crown Financial CorporationHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cummins-allison CorpHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Current IncorporatedHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Curgone, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cushman & Wakefield, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Cushman & Wakefield of Pennsylvania, LlcHarrisburg, PA · Not reported | Harrisburg, PA | LLC | Not reported | Not reported |
| D & K Stores, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Dal, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Dale System, IncorporatedHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Urs Corporation-ohioHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| C R Daniels IncHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Danville Lodge No 1133 Loyal Order of MooseHarrisburg, PA · Not reported | Harrisburg, PA | Nonprofit | Not reported | Not reported |
| Darling Ingredients Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| The Davey Tree Expert CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Day and Zimmermann, IncorporatedHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Deacon Industrial Supply Co., Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Dehco, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Sagrocry, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Imo Industries LlcHarrisburg, PA · Not reported | Harrisburg, PA | LLC | Not reported | Not reported |
| Delfi Capital Sales, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Parsons Transportation Group Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Delta Ventures, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| West Chester Tag CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Dennison Manufacturing CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Department of Pennsylvania Veterans of Foreign Wars of the United StatesHarrisburg, PA · Not reported | Harrisburg, PA | Nonprofit | Not reported | Not reported |
| Radiac Abrasives, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| M H Detrick CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Development Dimensions International, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Diamond Manufacturing CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Diaz Contracting, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| R & J Dick Co., Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Directory Distributing Associates, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| I2c Synergy, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Dix & Eaton, IncorporatedHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Dixonville Lodge No. 833, Loyal Order of MooseHarrisburg, PA · Not reported | Harrisburg, PA | Nonprofit | Not reported | Not reported |
| Domestic Finance CompanyHarrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |
| Donaldson Company, Inc.Harrisburg, PA · Not reported | Harrisburg, PA | Corporation | Not reported | Not reported |