| Business | Phone |
| Consulting Analytical Svc 2804 E Battlefield St, Springfield 65804 | (417) 882-1017 |
| Springfield Indoor Air Quality 1964 E Vincent Dr, Springfield 65804 | (417) 823-7427 |
| Nicholas Seed Testing 224 E Chestnut St, Springfield 65806 | (417) 831-1340 |
| Montgomery Metal Craft Old Highway 13 N, Springfield 65803 | (417) 833-1515 |