| 1 | Aeroking, Inc.Not reported | Corporation | Not reported | Not reported |
| 2 | Agricultural Purchasing and Marketing Cooperative of Mercer Pennsylvania IncNot reported | Corporation | Not reported | Not reported |
| 3 | The Amsterdam Cemetary Association IncNot reported | Nonprofit | Not reported | Not reported |
| 4 | Anderson Trucking Co.Not reported | Corporation | Not reported | Not reported |
| 5 | Bethany United Presbyterian Church of Mercer, PennsylvaniaNot reported | Nonprofit | Not reported | Not reported |
| 6 | Ben Bissett Chevrolet, Inc.Not reported | Corporation | Not reported | Not reported |
| 7 | Brandy Springs ParkNot reported | Nonprofit | Not reported | Not reported |
| 8 | Calvary Fellowship ChapelNot reported | Nonprofit | Not reported | Not reported |
| 9 | Celestron Communications Corp.Not reported | Corporation | Not reported | Not reported |
| 10 | The Columbian Home Corporation of Mercer, PennsylvaniaNot reported | Nonprofit | Not reported | Not reported |
| 11 | Cool Spring United Presbyterian ChurchNot reported | Nonprofit | Not reported | Not reported |
| 12 | Courtney Cemetery AssociationNot reported | Nonprofit | Not reported | Not reported |
| 13 | Richard E. Craft American Legion Home CorporationNot reported | Nonprofit | Not reported | Not reported |
| 14 | Crown MeadowsNot reported | Corporation | Not reported | Not reported |
| 15 | Dunn Ford CompanyNot reported | Corporation | Not reported | Not reported |
| 16 | R. B. Easton, Inc.Not reported | Corporation | Not reported | Not reported |
| 17 | Evergreen Trailer Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 18 | Fairview Community ChurchNot reported | Nonprofit | Not reported | Not reported |
| 19 | First Baptist Church of Mercer, Pa.Not reported | Nonprofit | Not reported | Not reported |
| 20 | Greateastern Consumer Discount CompanyNot reported | Corporation | Not reported | Not reported |
| 21 | Harcliff Acres, Inc.Not reported | Corporation | Not reported | Not reported |
| 22 | Hardy Television Cable CorporationNot reported | Corporation | Not reported | Not reported |
| 23 | G F Howard Construction Company IncNot reported | Corporation | Not reported | Not reported |
| 24 | Hydroil, Inc., a Close CorporationNot reported | Corporation | Not reported | Not reported |
| 25 | Interstate Foundry Products, Inc.Not reported | Corporation | Not reported | Not reported |
| 26 | J & J Oil Co. Inc.Not reported | Corporation | Not reported | Not reported |
| 27 | Jacob's LadderNot reported | Nonprofit | Not reported | Not reported |
| 28 | Jefferson Township Civic LeagueNot reported | Nonprofit | Not reported | Not reported |
| 29 | Keystone Automotive Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 30 | Leland C. King Agency, Inc.Not reported | Corporation | Not reported | Not reported |
| 31 | Ralph W. Kyle, Inc.Not reported | Corporation | Not reported | Not reported |
| 32 | Langley Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Laubscher Cheese CompanyNot reported | Corporation | Not reported | Not reported |
| 34 | Mercer Post No. 159Not reported | Nonprofit | Not reported | Not reported |
| 35 | Mercer Archery Club, IncorporatedNot reported | Nonprofit | Not reported | Not reported |
| 36 | Mercer Area Little LeagueNot reported | Nonprofit | Not reported | Not reported |
| 37 | Mercer Area Pony League Baseball IncNot reported | Nonprofit | Not reported | Not reported |
| 38 | Mercer Beverage CompanyNot reported | Corporation | Not reported | Not reported |
| 39 | Mercer Church of the NazareneNot reported | Nonprofit | Not reported | Not reported |
| 40 | Mercer Community Chamber of CommerceNot reported | Nonprofit | Not reported | Not reported |
| 41 | Mercer Community HospitalNot reported | Nonprofit | Not reported | Not reported |
| 42 | Mercer Community Youth CenterNot reported | Nonprofit | Not reported | Not reported |
| 43 | The Mercer County Artificial Breeding CooperativeNot reported | Corporation | Not reported | Not reported |
| 44 | Mercer County Farm BureauNot reported | Nonprofit | Not reported | Not reported |
| 45 | Mercer County Firemen's AssociationNot reported | Nonprofit | Not reported | Not reported |
| 46 | Mercer County 4-h Development Committee, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 47 | Mercer County Historical SocietyNot reported | Nonprofit | Not reported | Not reported |
| 48 | Mercer Hebron Masonic Hall AssociationNot reported | Nonprofit | Not reported | Not reported |
| 49 | Mercer Hotels IncNot reported | Corporation | Not reported | Not reported |
| 50 | Mercer Area Development CorporationNot reported | Nonprofit | Not reported | Not reported |