| ADVANCED TECHNOLOGY INSTITUTE | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| GREENWOOD COUNTY | KINGHORN, HILBERT & ASSOCIATES | Q1 2009 | Environment/Superfund, Transportation, Clean Air and Water (quality) |
| CITY OF WEST COLUMBIA SC | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Utilities, Budget/Appropriations, Environment/Superfund |
| PARKER SCITECH GROUP | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Defense, Budget/Appropriations |
| SOUTH CAROLINA RESEARCH AUTHORITY | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Defense, Homeland Security, Budget/Appropriations |
| CITY OF MAULDIN | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Utilities, Arts/Entertainment, Transportation |
| CITY OF HARDEEVILLE, SC | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Utilities, Transportation, Urban Development/Municipalities |
| GREENWOOD COMMISSION OF PUBLIC WORKS | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Utilities, Environment/Superfund, Transportation |
| AMERICAN FOREST AND PAPER ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Defense, Fuel/Gas/Oil, Budget/Appropriations |
| SELF REGIONAL HEALTH CARE | KINGHORN, HILBERT & ASSOCIATES | Q2 2010 | Defense, Agriculture, Budget/Appropriations |
| LAURENS COUNTY | KINGHORN, HILBERT & ASSOCIATES | Q2 2010 | Utilities, Environment/Superfund, Clean Air and Water (quality) |
| AMERICAN FOUNDRY SOCIETY | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| COPPER DEVELOPMENT ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| NORTH AMERICAN DIE CASTING ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| NON-FERROUS FOUNDERS SOCIETY | KINGHORN, HILBERT & ASSOCIATES | Q1 2009 | Defense, Budget/Appropriations |
| SILVER CRESCENT FOUNDATION (FORMERLY TECHNICAL EXPOSITIONS) | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Education, Budget/Appropriations |
| STEEL FOUNDERS' SOCIETY OF AMERICA | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| VFORGE | KINGHORN, HILBERT & ASSOCIATES | Q1 2009 | Defense, Budget/Appropriations |
| ERSKINE COLLEGE | KINGHORN, HILBERT & ASSOCIATES | Q4 2009 | Education, Budget/Appropriations |
| INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION | KINGHORN, HILBERT & ASSOCIATES | Q1 2010 | Defense, Budget/Appropriations |
| LANDER UNIVERSITY | KINGHORN, HILBERT & ASSOCIATES | Q1 2010 | Transportation, Energy/Nuclear, Education |
| INTERNATIONAL COPPER ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q1 2010 | Defense, Budget/Appropriations |
| PARAMETRIC TECHNOLOGIES CORPORATION | KINGHORN, HILBERT & ASSOCIATES | Q1 2010 | Defense, Budget/Appropriations |
| CAROLINA FILTERS, INC. | KINGHORN, HILBERT & ASSOCIATES | Q4 2009 | Chemicals/Chemical Industry, Budget/Appropriations, Energy/Nuclear |
| DEFENSECS | KINGHORN, HILBERT & ASSOCIATES | Q3 2009 | Defense, Budget/Appropriations |
| MOMENTIVE PERFORMANCE MATERIALS | KINGHORN, HILBERT & ASSOCIATES | Q3 2009 | Defense, Budget/Appropriations, Energy/Nuclear |
| ALION SCIENCE AND TECHNOLOGY CORPORATION | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |