| Business | Phone |
| Air Applications 9100 Purdue Rd, Indianapolis 46268 | (317) 872-0026 |
| Colby Equipment Co 3048 Ridgeview Dr, Indianapolis 46226 | (317) 545-4221 |
| Controlled Environmental Systm 9465 Counselors Row # 200, Indianapolis 46240 | (317) 805-4760 |
| J H Niesse Assoc 5837 Winthrop Ave, Indianapolis 46220 | (317) 255-1989 |