| A. P. Green Refractories Co. Inc. | 8 | 11 | 1,891.09 |
| Anderson Development Co. | 1 | 2 | 594.00 |
| Blastech, Inc | 4 | 5 | 1,788.71 |
| Bradenburg Industrial Service Company | 7 | 10 | 5,122.45 |
| Bucko Construction - 15th Street Plant | 41 | 82 | 256,560.76 |
| Carmeuse Lime Incorporated | 10 | 67 | 3,983,442.41 |
| Chemcoaters | 41 | 243 | 9,737.25 |
| Edward C. Levy Company | 3 | 12 | 256,778.55 |
| Gary Coal Processing | 40 | 206 | 62,527.17 |
| Gary Sanitary Landfill | 36 | 43 | 76,942.20 |
| Industrial Steel Construction, Inc. | 41 | 49 | 59,120.83 |
| Koppers Industries Inc | 7 | 10 | 5,548.93 |
| Methodist Hospitals Inc | 41 | 41 | 15,070.49 |
| Mid-Continent Coal & Coke, Co.-Usx | 3 | 12 | 255,995.30 |
| Nipsco - Dean H. Mitchell Station | 95 | 503 | 715,981.67 |
| North American Refractories | 40 | 43 | 5,520.18 |
| One Shot, Llc | 1 | 2 | 19.00 |
| Praxair | 43 | 113 | 7,147.89 |
| Reed Minerals Div. | 40 | 46 | 74,118.59 |
| Republic Technologies International | 40 | 90 | 15,551.52 |
| Rieth-Riley Asphalt Plant #367 | 42 | 62 | 55,899.33 |
| Sca Tissue North America, Llc | 41 | 84 | 127,358.52 |
| Smiths Medical Asd, Inc | 1 | 4 | 17,160.00 |
| Stanrail North Plant | 40 | 51 | 9,533.28 |
| Stanrail South Plant | 6 | 13 | 22,611.25 |
| Tube City, Inc. | 41 | 44 | 384,595.82 |
| U S Steel Co Gary Works | 63 | 2215 | 220,246,632.41 |
| Uss - Central Teaming Company, Inc. | 31 | 76 | 293,012.39 |
| Uss-International Mill Service | 3 | 12 | 32,644.52 |
| Uss/C.J.Langenfelder & Son, Inc. | 3 | 15 | 59,598.31 |
| Usx | 3 | 9 | 332,254.66 |
