| AMERICAN CHEMISTRY COUNCIL | | 23 | $102.5M | Q3 2026 |
| AMAZON.COM SERVICES LLC | | 19 | $87.9M | Q3 2025 |
| GENERAL MOTORS COMPANY | | 23 | $83.9M | Q3 2026 |
| OCCIDENTAL PETROLEUM CORPORATION | | 23 | $60.3M | Q3 2026 |
| SOUTHERN COMPANY | | 23 | $60.0M | Q3 2026 |
| NATIONAL ASSOCIATION OF MANUFACTURERS | | 20 | $54.5M | Q3 2025 |
| KOCH GOVERNMENT AFFAIRS, LLC | | 19 | $47.6M | Q3 2025 |
| NATIONAL MULTIFAMILY HOUSING COUNCIL INC | | 23 | $44.5M | Q3 2026 |
| AMERICAN PETROLEUM INSTITUTE | | 23 | $36.3M | Q3 2026 |
| CHAMBER OF COMMERCE OF THE U.S.A. | | 2 | $28.8M | Q2 2021 |
| CONOCOPHILLIPS | | 14 | $23.1M | Q3 2026 |
| NATIONAL ASSOCIATION OF HOME BUILDERS | | 23 | $20.0M | Q3 2026 |
| NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION (NRECA) | | 23 | $19.5M | Q3 2026 |
| SEMPRA | | 23 | $19.0M | Q3 2026 |
| NATURE CONSERVANCY | | 23 | $17.4M | Q3 2026 |
| AMERICAN COUNCIL OF ENGINEERING COMPANIES | | 20 | $17.4M | Q3 2025 |
| CUMMINS INC | | 23 | $17.1M | Q3 2026 |
| AMERICAN FOREST & PAPER ASSOCIATION | | 23 | $14.7M | Q3 2026 |
| NATIONAL MINING ASSOCIATION | | 23 | $14.2M | Q3 2026 |
| SHELL USA, INC. (FKA SHELL OIL COMPANY) | | 7 | $11.6M | Q3 2026 |
| LAND O'LAKES INC | | 16 | $10.6M | Q3 2026 |
| MOLSON COORS BEVERAGE COMPANY USA LLC | | 15 | $9.9M | Q3 2024 |
| AMERICAN FARM BUREAU FED | | 23 | $9.4M | Q3 2026 |
| MARATHON PETROLEUM COMPANY LP | | 14 | $9.1M | Q3 2026 |
| NATIONAL ALLIANCE OF FOREST OWNERS | | 23 | $8.8M | Q3 2026 |
| NATIONAL COUNCIL OF FARMER COOPERATIVES | | 23 | $8.2M | Q3 2026 |
| NATIONAL RURAL WATER ASSOCIATION | | 23 | $7.9M | Q3 2026 |
| UNITED STATES STEEL CORPORATION | | 15 | $7.8M | Q3 2026 |
| TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (TSMC) | | 12 | $7.7M | Q3 2026 |
| RENEWABLE FUELS ASSOCIATION | | 22 | $7.3M | Q2 2026 |
| SCHNEIDER ELECTRIC | | 23 | $7.2M | Q3 2026 |
| NATIONAL MILK PRODUCERS FEDERATION | | 22 | $6.6M | Q2 2026 |
| CLEVELAND-CLIFFS INC | | 17 | $6.2M | Q3 2026 |
| AECOM | | 23 | $6.2M | Q3 2026 |
| BP AMERICA, INC | | 5 | $5.9M | Q2 2022 |
| OVINTIV INC. | | 23 | $5.9M | Q3 2026 |
| INTERSTATE NATURAL GAS ASSOCIATION OF AMERICA | | 17 | $5.7M | Q3 2026 |
| AMERICAN SOCIETY OF CIVIL ENGINEERS | | 23 | $5.5M | Q3 2026 |
| SPACE EXPLORATION TECHNOLOGIES | | 7 | $5.3M | Q3 2026 |
| MOTOR & EQUIPMENT MANUFACTURERS ASSOCIATION | | 23 | $5.1M | Q3 2026 |