| QUALCOMM INCORPORATED | | 18 | $32.0M | Q3 2026 |
| AMERICAN COUNCIL OF ENGINEERING COMPANIES | | 20 | $17.4M | Q3 2025 |
| CHAMBER OF COMMERCE OF THE U.S.A. | | 1 | $17.2M | Q1 2021 |
| UBER TECHNOLOGIES, INC. | | 23 | $15.5M | Q3 2026 |
| AMERICAN TRUCKING ASSOCIATIONS | | 23 | $14.4M | Q3 2026 |
| 3M COMPANY | | 23 | $12.1M | Q3 2026 |
| ZURICH AMERICAN INSURANCE COMPANY | | 23 | $12.1M | Q3 2026 |
| CHEVRON U.S.A. INC. | | 7 | $11.6M | Q1 2023 |
| ASSOCIATED GENERAL CONTRACTORS OF AMERICA | | 22 | $5.3M | Q2 2026 |
| JACOBS SOLUTIONS, INC. | | 23 | $4.4M | Q3 2026 |
| U.S. TRAVEL ASSOCIATION | | 5 | $4.2M | Q1 2022 |
| UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS | | 21 | $3.7M | Q1 2026 |
| SHELL USA, INC. (FKA SHELL OIL COMPANY) | | 2 | $3.7M | Q2 2021 |
| OUTDOOR ADVERTISING ASSOCIATION OF AMERICA INC | | 23 | $3.4M | Q3 2026 |
| U.S. TIRE MANUFACTURERS ASSOCIATION | | 23 | $3.1M | Q3 2026 |
| UPS (UNITED PARCEL SERVICE) | | 2 | $3.0M | Q3 2021 |
| NATIONAL STONE SAND AND GRAVEL ASSOCIATION | | 23 | $2.9M | Q3 2026 |
| NATSO INC | | 23 | $2.8M | Q3 2026 |
| NATIONAL ASPHALT PAVEMENT ASSOCIATION | | 23 | $2.7M | Q3 2026 |
| NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION | | 4 | $2.4M | Q2 2026 |
| INSTITUTE OF SCRAP RECYCLING INDUSTRIES INC | | 23 | $2.4M | Q3 2026 |
| MUNICIPAL CASTINGS ASSOCIATION FORMERLY MUNICIPAL CASTINGS FAIR TRADE COUNCIL | KELLEY DRYE & WARREN LLP | 11 | $2.0M | Q3 2025 |
| ENVIRI | | 16 | $1.9M | Q2 2026 |
| COCA-COLA COMPANY | | 1 | $1.9M | Q2 2021 |
| EMD SERONO INC | | 3 | $1.8M | Q3 2021 |
| GREATER CLEVELAND PARTNERSHIP | | 23 | $1.8M | Q3 2026 |
| AMERICAN FEDERATION OF STATE COUNTY AND MUNICIPAL EMPLOYEES | | 3 | $1.8M | Q2 2023 |
| INGEVITY CORPORATION | HOLLAND & KNIGHT LLP | 23 | $1.7M | Q3 2026 |
| AMERICAN BUS ASSOCIATION | | 19 | $1.7M | Q3 2025 |
| ALLIANCE FOR AMERICAN MANUFACTURING | KELLEY DRYE & WARREN LLP | 19 | $1.6M | Q3 2025 |
| EXXON MOBIL CORP | | 1 | $1.6M | Q1 2021 |
| UNIVERSITY OF IOWA | | 23 | $1.4M | Q3 2026 |
| BUILDING AND CONSTRUCTION TRADES DEPT AFL-CIO | | 5 | $1.2M | Q3 2022 |
| COLUMBUS CHAMBER OF COMMERCE | ALIGNMENT GOVERNMENT STRATEGIES | 22 | $1.2M | Q3 2026 |
| MISSISSIPPI STATE UNIVERSITY | FEDERAL SOLUTIONS, LLC | 23 | $1.1M | Q3 2026 |
| THE COOK GROUP INC. | | 8 | $1.1M | Q3 2022 |
| ELEC825 (ENGINEERS LABOR-EMPLOYER COOPERATIVE) | ROBERTI GLOBAL (F/K/A ROBERTI WHITE, LLC) | 22 | $1.0M | Q3 2026 |
| CRH AMERICAS MATERIALS, INC. | FORBES-TATE | 15 | $1.0M | Q3 2026 |
| MICHIGAN TECHNOLOGICAL UNIVERSITY | | 23 | $960K | Q3 2026 |
| HITACHI, LTD | | 13 | $958K | Q3 2026 |