| LOCKHEED MARTIN CORPORATION | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q1 2015 | Defense |
| PRASAM (ON BEHALF OF CONCURRENT TECHNOLOGIES CORPORATION) | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q3 2014 | Defense |
| CONCURRENT TECHNOLOGIES CORPORATION | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q2 2014 | Defense |
| DYNAMIC ANIMATION SYSTEMS | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q3 2013 | Defense |
| GENERAL DYNAMICS | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q4 2012 | Defense |
| QINETIQ NORTH AMERICA | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q2 2012 | Defense |
| EMSOLUTIONS | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q2 2012 | Defense |
| L. ROBERT KIMBALL & ASSOCIATES, INCORPORATED | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q4 2011 | Defense |
| PARAMETRIC TECHNOLOGY CORPORATION | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q3 2011 | Defense |
| ULTRA-PROLOGIC | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q1 2011 | Defense |
| UNITED FIRST RESPONDERS | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q1 2011 | Defense |
| ARDIEM MEDICAL, INC. | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q4 2010 | Defense |
| ADVANCED ACOUSTIC CONCEPTS, INC. | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q4 2010 | Defense |
| CRYPTEK | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q3 2010 | Defense |
| MTS TECHNOLOGIES, INC. | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q2 2010 | Defense |
| FEDERAL BUSINESS GROUP LLC | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q1 2010 | Defense |
| ARGON ST, INC. | FLAGSHIP GOVERNMENT RELATIONS, INC. | Q3 2009 | Defense |
| SAMUELI INSTITUTE | THE PMA GROUP | Q4 2008 | Defense |
| QTL BIOSYSTEMS | THE PMA GROUP | Q1 2009 | Budget/Appropriations |
| QINETIQ NORTH AMERICA OPERATIONS LLC | THE PMA GROUP | Q1 2009 | Defense |
| NATIONAL CENTER FOR DEFENSE ROBOTICS | THE PMA GROUP | Q1 2009 | Defense |
| MTS TECHNOLOGIES INC | THE PMA GROUP | Q1 2009 | Defense |
| MOUNT ALOYSIUS COLLEGE | THE PMA GROUP | Q1 2009 | Defense, Education, Budget/Appropriations |
| L ROBERT KIMBALL & ASSOCIATES | THE PMA GROUP | Q1 2009 | Defense |
| GENERAL DYNAMICS | THE PMA GROUP | Q1 2009 | Defense |
| CRYPTEK SECURE COMMUNICATIONS LLC | THE PMA GROUP | Q4 2008 | Defense |
| CONCURRENT TECHNOLOGIES CORPORATION | THE PMA GROUP | Q4 2008 | Budget/Appropriations |
| MIC INDUSTRIES INC | THE PMA GROUP | Q4 2008 | Defense |
| ADVANCED ACOUSTIC CONCEPTS INC | THE PMA GROUP | Q4 2008 | Defense |
| SETON HILL UNIVERSITY | THE PMA GROUP | Q4 2008 | Defense, Budget/Appropriations |
| CONEMAUGH HEALTH SYSTEMS | THE PMA GROUP | Q4 2008 | Defense, Budget/Appropriations |
| WINDBER RESEARCH INSTITUTE | THE PMA GROUP | Q4 2008 | Defense |
| DRS TECHNOLOGIES INC | THE PMA GROUP | Q4 2008 | Defense |
| FIBERGATE | THE PMA GROUP | Q4 2008 | Defense |
| COLLEGE OF ENGINEERING AT CARNEGIE MELLON | THE PMA GROUP | Q4 2008 | Defense, Budget/Appropriations, Energy/Nuclear |
| WASHINGTON AND JEFFERSON COLLEGE | THE PMA GROUP | Q3 2008 | Budget/Appropriations |
| SBARRO HEALTH RESEARCH ORGANIZATION | THE PMA GROUP | Q3 2008 | Defense |
| PARAMETRIC TECHNOLOGY CORPORATION | THE PMA GROUP | Q3 2008 | Defense |
| PROLOGIC | THE PMA GROUP | Q3 2008 | Defense |
| LOCKHEED MARTIN CORPORATION | THE PMA GROUP | Q3 2008 | Defense |
| ITT CORPORATION | THE PMA GROUP | Q3 2008 | Budget/Appropriations |
| ARDIEM MEDICAL | THE PMA GROUP | Q3 2008 | Defense |
| PLANNING SYSTEMS INCORPORATED | THE PMA GROUP | Q2 2008 | Defense |
| MALIBU RESEARCH | THE PMA GROUP | Q2 2008 | Defense |
| ROCKWELL COLLINS | THE PMA GROUP | Q1 2008 | Defense |
| POCAL INDUSTRIES INC | THE PMA GROUP | Q1 2008 | Defense |
| MOBILVOX | THE PMA GROUP | Q1 2008 | Defense |
| GOODRICH INTERIORS (FORMERLY KNOWN AS GOODRICH AIRCRAFT INTERIOR PRODUCTS) | THE PMA GROUP | Q1 2008 | Defense |
| HEALTHNET FEDERAL SERVICES | THE PMA GROUP | Q1 2008 | Defense |
