| SOUTH CAROLINA PEACH COUNCIL | COMBEST, SELL & ASSOCIATES, LLC | Q2 2015 | Immigration, Agriculture, Budget/Appropriations |
| SOUTHWEST COUNCIL OF AGRIBUSINESS | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Budget/Appropriations, Clean Air and Water (quality), Agriculture |
| COTTON WAREHOUSE ASSOCIATION OF AMERICA | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Agriculture, Budget/Appropriations |
| MINNESOTA CORN GROWERS | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Budget/Appropriations, Clean Air and Water (quality), Agriculture |
| CROP INSURANCE PROFESSIONAL ASSOCIATION LLC (NEW NAME) | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Agriculture, Budget/Appropriations |
| USA RICE FEDERATION | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Agriculture, Budget/Appropriations |
| SELECT MILK PRODUCERS, INC./CONTINENTAL DAIRY PRODUCTS, INC. | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Budget/Appropriations, Clean Air and Water (quality), Agriculture |
| NATIONAL SORGHUM PRODUCERS | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Budget/Appropriations, Clean Air and Water (quality), Agriculture |
| WESTERN PEANUT GROWERS ASSOCIATION | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Agriculture, Budget/Appropriations |
| NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Agriculture, Budget/Appropriations, Energy/Nuclear |
| AMERICAN SUGAR ALLIANCE | COMBEST, SELL & ASSOCIATES, LLC | Q1 2017 | Agriculture, Budget/Appropriations |
| GROWER INFORMATION SERVICES COOPERATIVE | COMBEST, SELL & ASSOCIATES, LLC | Q3 2015 | Agriculture |