| Business | Phone |
| Transportation Concepts Ltd 1415 Rensen St, Lansing 48910 | (517) 882-0033 |
| Bretton Square Industries 812 E Jolly Rd 216, Lansing 48910 | (517) 346-9607 |
| Function Technologies 805 N Jenison Ave, Lansing 48915 | (517) 702-0912 |
| Jet Engineering Inc 5212 Aurelius Rd, Lansing 48911 | (517) 882-4312 |