| Allsteel Muscatine Components Plant | 27 | 326 | 180,372.72 |
| Boc Gases | 1 | 2 | 25,677.00 |
| Central Iowa Power Coop. - Fair Station | 78 | 179 | 12,701,740.50 |
| City Of Muscatine Landfill & Recycling Center | 28 | 28 | 10,047.08 |
| Grain Processing Corporation | 21 | 1955 | 34,908,841.26 |
| H.J. Heinz, L.P. | 28 | 669 | 196,212.91 |
| Harsco Corp. Heckett Multiserv Plant 52 | 4 | 4 | 4,967.00 |
| Ipsco Steel, Inc. | 16 | 249 | 2,649,458.10 |
| K.A. Steel Chemicals Inc. | 1 | 1 | 6.00 |
| Louisa | 81 | 116 | 58,843,598.90 |
| Mckee Button Company | 8 | 53 | 15,618.80 |
| Midamerican Energy Co. - Louisa Station | 56 | 319 | 53,409,159.78 |
| Monsanto Company - Muscatine 3670/6908/6909 | 53 | 1398 | 1,896,006.77 |
| Muscatine Power & Water | 93 | 1388 | 19,103,543.39 |
| River Terminal Corp. | 1 | 2 | 1,000.00 |
| The Hon Company - Oak Steel Plant | 28 | 1602 | 1,290,165.40 |
| Union Tank Car Co. - Muscatine | 26 | 474 | 958,652.80 |
| Weber & Sons Button Co., Inc. | 7 | 71 | 5,682.60 |
