| BALDOR ADVANCED TECHNOLOGY (FORMERLY KNOWN AS BALDOR/DODGE/RELIANCE ADV TECH) | KINGHORN, HILBERT & ASSOCIATES | Q4 2013 | Defense, Budget/Appropriations, Energy/Nuclear |
| COPPER DEVELOPMENT ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q2 2013 | Medical/Disease Research/Clinical Labs, Health Issues, Energy/Nuclear |
| VANADIUM PRODUCERS AND RECLAIMERS ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q2 2013 | Defense, Budget/Appropriations, Environment/Superfund |
| ADVANCED TECHNOLOGY INSTITUTE | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| CITY OF MAULDIN | KINGHORN, HILBERT & ASSOCIATES | Q1 2012 | Utilities, Arts/Entertainment, Clean Air and Water (quality) |
| AMERICAN FOREST AND PAPER ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q4 2011 | Defense, Fuel/Gas/Oil, Budget/Appropriations |
| CITY OF WEST COLUMBIA SC | KINGHORN, HILBERT & ASSOCIATES | Q3 2011 | Utilities, Budget/Appropriations, Environment/Superfund |
| SOUTH CAROLINA RESEARCH AUTHORITY | KINGHORN, HILBERT & ASSOCIATES | Q3 2011 | Homeland Security, Defense, Education |
| MOMENTIVE PERFORMANCE MATERIALS | KINGHORN, HILBERT & ASSOCIATES | Q3 2011 | Defense, Chemicals/Chemical Industry, Budget/Appropriations |
| GREENWOOD COUNTY | KINGHORN, HILBERT & ASSOCIATES | Q3 2011 | Utilities, Environment/Superfund, Transportation |
| INTERNATIONAL COPPER ASSOCIATION | KINGHORN, HILBERT & ASSOCIATES | Q1 2011 | Medical/Disease Research/Clinical Labs, Energy/Nuclear, Defense |
| CITY OF HARDEEVILLE, SC | KINGHORN, HILBERT & ASSOCIATES | Q1 2011 | Utilities, Transportation, Urban Development/Municipalities |
| VFORGE | KINGHORN, HILBERT & ASSOCIATES | Q3 2008 | Defense, Budget/Appropriations, Energy/Nuclear |
| HYDRAULIC INSTITUTE INC | KINGHORN, HILBERT & ASSOCIATES | Q3 2008 | Defense, Budget/Appropriations, Energy/Nuclear |
| SILVER CRESCENT FOUNDATION (FORMERLY TECHNICAL EXPOSITIONS) | KINGHORN, HILBERT & ASSOCIATES | Q3 2008 | Education, Budget/Appropriations |
| PUMP SYSTEMS MATTER | KINGHORN, HILBERT & ASSOCIATES | Q3 2008 | Defense, Budget/Appropriations, Energy/Nuclear |
| GREENWOOD COMMISSION OF PUBLIC WORKS | KINGHORN, HILBERT & ASSOCIATES | Q4 2010 | Utilities, Environment/Superfund, Transportation |
| INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION | KINGHORN, HILBERT & ASSOCIATES | Q3 2010 | Defense, Budget/Appropriations |
| SELF REGIONAL HEALTH CARE | KINGHORN, HILBERT & ASSOCIATES | Q2 2010 | Defense, Agriculture, Budget/Appropriations |
| PARKER SCITECH GROUP | KINGHORN, HILBERT & ASSOCIATES | Q2 2010 | Defense, Budget/Appropriations |
| LAURENS COUNTY | KINGHORN, HILBERT & ASSOCIATES | Q2 2010 | Utilities, Environment/Superfund, Clean Air and Water (quality) |
| GEORGETOWN COUNTY SC | KINGHORN, HILBERT & ASSOCIATES | Q1 2008 | Economics/Economic Development, Budget/Appropriations |
| ENGINEERING SYSTEMS SOLUTIONS | KINGHORN, HILBERT & ASSOCIATES | Q1 2008 | Defense, Budget/Appropriations |
| CELL EXCHANGE | KINGHORN, HILBERT & ASSOCIATES | Q3 2008 | Defense, Budget/Appropriations |
| AMERICAN FOUNDRY SOCIETY | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| COVANTA ENERGY | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Energy/Nuclear, 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 |
| STEEL FOUNDERS' SOCIETY OF AMERICA | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |
| ERSKINE COLLEGE | KINGHORN, HILBERT & ASSOCIATES | Q4 2009 | Education, Budget/Appropriations |
| PARAMETRIC TECHNOLOGIES CORPORATION | KINGHORN, HILBERT & ASSOCIATES | Q4 2009 | Defense, Budget/Appropriations |
| LANDER UNIVERSITY | KINGHORN, HILBERT & ASSOCIATES | Q4 2009 | Transportation, Energy/Nuclear, Education |
| SIGNAL ABOVE, LLC | KINGHORN, HILBERT & ASSOCIATES | Q4 2009 | Communications/Broadcasting/Radio/TV, Copyright/Patent/Trademark, Telecommunications |
| CAROLINA FILTERS, INC. | KINGHORN, HILBERT & ASSOCIATES | Q3 2009 | Chemicals/Chemical Industry, Budget/Appropriations, Energy/Nuclear |
| ALBEMARLE CORPORATION | KINGHORN, HILBERT & ASSOCIATES | Q3 2009 | Defense, Chemicals/Chemical Industry, Energy/Nuclear |
| CHEMICAL INDUSTRY VISION 2020 PARTNERSHIP | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Budget/Appropriations, Energy/Nuclear |
| GLASS MANUFACTURING INDUSTRY COUNCIL | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Budget/Appropriations, Energy/Nuclear |
| ALION SCIENCE AND TECHNOLOGY CORPORATION | KINGHORN, HILBERT & ASSOCIATES | Q4 2008 | Defense, Budget/Appropriations |