| Business | Phone |
| W P Consultants Inc 12462 Cinema Ln, Sappington 63127 | (314) 842-6942 |
| Turnkey Technologies Inc 1157 Reco Ave, Sappington 63126 | (314) 909-1622 |
| J W Software 11300 Old Tesson Ferry Rd, Sappington 63128 | (314) 843-5950 |
| Genelco Software Solutions 9735 Landmark Parkway Dr, Sappington 63127 | (314) 467-8000 |
| Best Systems Inc 5151 Mattis Rd, Sappington 63128 | (314) 849-1700 |