| CHAMBER OF COMMERCE OF THE U.S.A. | | 11 | $201.8M | Q2 2025 |
| OCCIDENTAL PETROLEUM CORPORATION | | 15 | $39.0M | Q3 2026 |
| ASSOCIATION OF AMERICAN RAILROADS | | 23 | $28.6M | Q3 2026 |
| AMERICAN ASSOCIATION FOR JUSTICE | | 21 | $27.7M | Q3 2026 |
| UNION PACIFIC CORPORATION | | 23 | $20.9M | Q3 2026 |
| INTERNATIONAL ASSOCIATION OF MACHINISTS AND AEROSPACE WORKERS | | 23 | $18.9M | Q3 2026 |
| BNSF RAILWAY COMPANY | | 23 | $16.8M | Q3 2026 |
| CSX CORPORATION | | 23 | $12.2M | Q3 2026 |
| NORFOLK SOUTHERN CORPORATION | | 23 | $11.9M | Q3 2026 |
| LAND O'LAKES INC | | 16 | $10.6M | Q3 2026 |
| SHELL USA, INC. (FKA SHELL OIL COMPANY) | | 6 | $10.4M | Q1 2024 |
| CATERPILLAR INC | | 8 | $9.0M | Q3 2026 |
| TRANSPORTATION TRADES DEPARTMENT AFL-CIO | | 23 | $8.2M | Q3 2026 |
| INT'L ASS'N OF SHEET METAL AIR RAIL & TRANSP WORKERS TRANSP DIV | | 23 | $8.2M | Q3 2026 |
| RENEWABLE FUELS ASSOCIATION | | 22 | $7.3M | Q2 2026 |
| NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION (NRECA) | | 6 | $5.9M | Q3 2026 |
| INTERNATIONAL BROTHERHOOD OF TEAMSTERS | | 18 | $5.7M | Q3 2026 |
| AMERICAN FARM BUREAU FED | | 10 | $5.5M | Q2 2023 |
| NATIONAL ASSOCIATION OF MANUFACTURERS | | 3 | $5.4M | Q3 2026 |
| BROTHERHOOD OF LOCOMOTIVE ENGINEERS AND TRAINMEN | | 23 | $5.3M | Q3 2026 |
| OMNITRAX, INC. | VIKING NAVIGATION LLC | 23 | $5.1M | Q3 2026 |
| SYENSQO USA LLC | | 23 | $4.9M | Q3 2026 |
| GENESEE & WYOMING INC | | 22 | $4.6M | Q3 2026 |
| ARKEMA INC. AND ITS AFFILIATES (FKA ARKEMA INC.) | | 23 | $4.5M | Q3 2026 |
| MOLSON COORS BEVERAGE COMPANY USA LLC | | 7 | $4.3M | Q3 2024 |
| CANADIAN NATIONAL RAILWAY COMPANY | | 23 | $4.1M | Q3 2026 |
| AMERICAN SHORT LINE AND REGIONAL RAILROAD ASSOCIATION | | 23 | $3.9M | Q3 2026 |
| SOO LINE RAILROAD COMPANY | | 23 | $3.3M | Q3 2026 |
| TRANSPORT WORKERS UNION OF AMERICA, AFL-CIO | | 23 | $3.3M | Q3 2026 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS | | 22 | $2.9M | Q3 2026 |
| EXXON MOBIL CORP | | 2 | $2.9M | Q2 2023 |
| RAIL SECURITY ALLIANCE | VENN STRATEGIES | 23 | $2.7M | Q3 2026 |
| WABTEC CORPORATION | VENN STRATEGIES | 23 | $2.6M | Q3 2026 |
| BLH CAPITAL & MANAGEMENT SERVICES LLC | H.A. CUMBER & COMPANY, INC. | 7 | $2.5M | Q3 2026 |
| CEMEX INC. | | 8 | $2.4M | Q1 2024 |
| CN F/K/A GRAND TRUNK CORPORATION | PUBLIC STRATEGIES WASHINGTON, INC. | 23 | $2.2M | Q3 2026 |
| GATX CORPORATION | | 9 | $2.1M | Q3 2026 |
| ENVIRI | | 19 | $2.1M | Q1 2026 |
| PET FOOD INSTITUTE | | 18 | $2.0M | Q3 2026 |
| NEXPOINT MATERIALS LLC, FORMERLY REPORTING AS SABIC INNOVATIVE PLASTICS US LLC | | 23 | $1.9M | Q3 2026 |