| COALITION FOR AMERICAN ELECTRONICS RECYCLING | WHITMER & WORRALL, LLC | Q4 2015 | Environment/Superfund, Homeland Security, Intelligence |
| ROTECH HEALTHCARE INC. | WHITMER & WORRALL, LLC | Q4 2015 | Defense, Government Issues, Budget/Appropriations |
| PPG INDUSTRIES INC. | WHITMER & WORRALL, LLC | Q4 2015 | Taxation/Internal Revenue Code, Financial Institutions/Investments/Securities, Transportation |
| GEOSYNTHETIC MATERIALS ASSOCIATION - ATA (FORMERLY KNOWN AS GMA - IFAI) | WHITMER & WORRALL, LLC | Q4 2015 | Waste (hazardous/solid/interstate/nuclear), Transportation, Aviation/Airlines/Airports |
| NATIONAL ASPHALT PAVEMENT ASSOCIATION | WHITMER & WORRALL, LLC | Q4 2015 | Transportation, Roads/Highway, Budget/Appropriations |
| ASSOCIATION OF AMERICAN RAILROADS | WHITMER & WORRALL, LLC | Q4 2015 | Transportation, Railroads |
| HAWAII ISLAND AIR, INC. | WHITMER & WORRALL, LLC | Q3 2015 | Aviation/Airlines/Airports |
| U.S. TRAVEL ASSOCIATION | WHITMER & WORRALL, LLC | Q3 2015 | Transportation, Travel/Tourism, Aviation/Airlines/Airports |
| HONEYWELL INTERNATIONAL INC. | WHITMER & WORRALL, LLC | Q3 2015 | Transportation, Consumer Issues/Safety/Products, Financial Institutions/Investments/Securities |
| INCCOMMUNICATIONS SERVICES | WHITMER & WORRALL, LLC | Q3 2015 | Utilities, Energy/Nuclear, Real Estate/Land Use/Conservation |
| BCAST, INC. | WHITMER & WORRALL, LLC | Q2 2015 | Government Issues, Telecommunications |
| NATIONAL TRANSPORTATION COALITION | WHITMER & WORRALL, LLC | Q4 2014 | Transportation |
| DECISION LENS | WHITMER & WORRALL, LLC | Q2 2014 | Government Issues |
| AMERICAN TRANSACTION PROCESSORS COALITION | WHITMER & WORRALL, LLC | Q2 2014 | Science/Technology, Homeland Security, Financial Institutions/Investments/Securities |
| COALITION FOR INDEPENDENT SENIORS (CIS) | WHITMER & WORRALL, LLC | Q3 2013 | Banking, Housing, Budget/Appropriations |
| M3 EAGLE L.L.C. | WHITMER & WORRALL, LLC | Q1 2013 | Transportation, Real Estate/Land Use/Conservation |
| NEURO KINETICS | WHITMER & WORRALL, LLC | Q3 2012 | Veterans, Defense |
| REDEMTECH, INC. | WHITMER & WORRALL, LLC | Q1 2011 | Government Issues, Environment/Superfund |
| BARBOUR GRIFFITH & ROGERS, LLC D/B/A BGR GOVERNMENT AFFAIRS | WHITMER & WORRALL, LLC | Q4 2010 | Transportation, Roads/Highway |
| CHARLOTTE MECKLENBURG HOUSING PARTNERSHIP | WHITMER & WORRALL, LLC | Q4 2010 | Transportation, Budget/Appropriations |
| THERMAL FLEX INSULATION, LLC | WHITMER & WORRALL, LLC | Q3 2010 | Energy/Nuclear |
| FISHER-TITUS MEDICAL CENTER | WHITMER & WORRALL, LLC | Q4 2009 | Budget/Appropriations, Health Issues |
| WHITMER & WORRALL, LLC (FORMERLY FILED GEOSYNTHETIC MATERIALS ASSOCIATION- IFAI) | KEMP GROUP LLC (DBA - KEMP PARTNERS) | Q2 2009 | Transportation |
| INDUSTRIAL FABRICS ASSOCIATION INTERNATIONAL | INDUSTRIAL FABRICS ASSOCIATION INTERNATIONAL | Q2 2008 | Transportation, Budget/Appropriations, Government Issues |