| Business | Phone |
| Bruce Carter & Assoc 733 Princeton Blvd, Elkhart 46516 | (574) 522-1019 |
| Commercial Office Environ 2650 Links Dr, Elkhart 46514 | (574) 206-9584 |
| Environmental Test Systems 1434 Johnson St, Elkhart 46514 | (574) 262-2495 |
| Romcraft Inc 1600 Osolo Rd, Elkhart 46514 | (574) 262-3811 |
| Sunpro 23843 County Road 6, Elkhart 46514 | (574) 262-3556 |