| 1 | Accountants Building CorporationNot reported | Corporation | Not reported | Not reported |
| 2 | Alcon Manufacturing Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 3 | Allegheny Tire Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 4 | Allegheny Valve & Coupling, Inc.Not reported | Corporation | Not reported | Not reported |
| 5 | American Petroleum CompanyNot reported | Corporation | Not reported | Not reported |
| 6 | Anderson's Bread CompanyNot reported | Corporation | Not reported | Not reported |
| 7 | Anderson Brick and Supply CompanyNot reported | Corporation | Not reported | Not reported |
| 8 | M E Anderson Agency IncNot reported | Corporation | Not reported | Not reported |
| 9 | Anderson-winchester Agency, Inc.Not reported | Corporation | Not reported | Not reported |
| 10 | Auto Sports Club IncNot reported | Nonprofit | Not reported | Not reported |
| 11 | Babwall CorporationNot reported | Corporation | Not reported | Not reported |
| 12 | Barton Electric, Inc.Not reported | Corporation | Not reported | Not reported |
| 13 | Bear Lake Community Fair Ass'nNot reported | Nonprofit | Not reported | Not reported |
| 14 | Berdine Printing CompanyNot reported | Corporation | Not reported | Not reported |
| 15 | Beyer Construction CompanyNot reported | Corporation | Not reported | Not reported |
| 16 | Companions for Kids of Warren CountyNot reported | Nonprofit | Not reported | Not reported |
| 17 | The Big Ten Club IncorporatedNot reported | Nonprofit | Not reported | Not reported |
| 18 | Blackman Nash IncNot reported | Corporation | Not reported | Not reported |
| 19 | Drs. Boger and Lympus Dental AssociatesNot reported | Corporation | Not reported | Not reported |
| 20 | Bond Lamp Works IncNot reported | Corporation | Not reported | Not reported |
| 21 | Bowen White Truck IncNot reported | Corporation | Not reported | Not reported |
| 22 | Bradford-penn Refining CorporationNot reported | Corporation | Not reported | Not reported |
| 23 | Brockway G G CompanyNot reported | Corporation | Not reported | Not reported |
| 24 | The BullwinklesNot reported | Nonprofit | Not reported | Not reported |
| 25 | C. L. W. CorporationNot reported | Corporation | Not reported | Not reported |
| 26 | Candlelite CorporationNot reported | Corporation | Not reported | Not reported |
| 27 | Cantina Inc.Not reported | Corporation | Not reported | Not reported |
| 28 | Chamberlain Sales IncNot reported | Corporation | Not reported | Not reported |
| 29 | Cherokee-warren Oil and Gas CompanyNot reported | Corporation | Not reported | Not reported |
| 30 | Home Corporation, American Legion Chief Cornplanter Post Number 135 of Warren, PennsylvaniaNot reported | Nonprofit | Not reported | Not reported |
| 31 | Commerce Chemical CorporationNot reported | Corporation | Not reported | Not reported |
| 32 | Commercial Lumber CompanyNot reported | Corporation | Not reported | Not reported |
| 33 | Community Credit Company of Warren PennsylvaniaNot reported | Corporation | Not reported | Not reported |
| 34 | Conewango Medical Laboratory, Inc.Not reported | Corporation | Not reported | Not reported |
| 35 | Conewango Valley Beagle ClubNot reported | Nonprofit | Not reported | Not reported |
| 36 | The CornerstoneNot reported | Nonprofit | Not reported | Not reported |
| 37 | Corydon Volunteer Fire DepartmentNot reported | Nonprofit | Not reported | Not reported |
| 38 | Country Fair, IncNot reported | Corporation | Not reported | Not reported |
| 39 | The Crary HomeNot reported | Nonprofit | Not reported | Not reported |
| 40 | Don Mills Achievement CenterNot reported | Nonprofit | Not reported | Not reported |
| 41 | Cropp Engineering CorporationNot reported | Corporation | Not reported | Not reported |
| 42 | Crossett, Inc.Not reported | Corporation | Not reported | Not reported |
| 43 | Cushing Place, Inc.Not reported | Corporation | Not reported | Not reported |
| 44 | Darling Furniture Store, IncNot reported | Corporation | Not reported | Not reported |
| 45 | Darling Jewelry Company of Warren PennsylvaniaNot reported | Corporation | Not reported | Not reported |
| 46 | Data Processing Service, Inc.Not reported | Corporation | Not reported | Not reported |
| 47 | Donald F. Davis, Inc.Not reported | Corporation | Not reported | Not reported |
| 48 | Warren Audio Center, Inc.Not reported | Corporation | Not reported | Not reported |
| 49 | Dinsmoor-schwing Post No. 631, Veterans of Foreign Wars of the United StatesNot reported | Nonprofit | Not reported | Not reported |
| 50 | Downs Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |