| Business | Phone |
| Storage Technology Corp 5134 Elmore Rd # 4, Memphis 38134 | (901) 388-4153 |
| Scan-Tron Corp Memphis 38134 | (901) 377-2520 |
| Emc Corp 8295 Tournament Dr # 350, Memphis 38125 | (901) 748-3405 |
| National Computer Systems 1715 Union Ave, Memphis 38104 | (901) 274-3036 |