| Business | Phone |
| De Young Engineering & Mgmt 6409 Tractor Rd, Sebring 33876 | (863) 386-0330 |
| Polston Engineering Inc 2925 Kenilworth Blvd, Sebring 33870 | (863) 385-5564 |
| Envisors Llc Sebring 33870 | (863) 385-0080 |
| Marrs Consulting 1500 11th Ave, Sebring 33875 | (863) 385-9595 |