| Meskwaki Bingo Casino, Hotel |
$100 M est | Entertainment |
| DuPont Pioneer Hi-Bred-Dysart |
$ 6.7 M | Manufacturing |
| DuPont Pioneer Hi-Bred-Toledo |
$ 4.8 M | Manufacturing |
| Cosmo International Traer Manufacturing |
$ 2.7 M | Manufacturing |
| Tama Benton Co-Op | $ 1.6 M | Manufacturing |
| Amber Holdings Iowa Premium Beef |
$ 1.1 M | Manufacturing |
| Caraustar Tama Paper Board |
$ 1.0 M | Manufacturing |
| Updated 2011 |
Tama County Iowa 
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