| Business | Phone |
| Tetra Soft Inc 745 Craig Rd # 302, Creve Coeur 63141 | (314) 569-4147 |
| Product4 Inc 12400 Olive Blvd, Creve Coeur 63141 | (314) 434-1999 |
| Pipkins Inc 1031 Executive Pkwy # 110, Creve Coeur 63141 | (314) 469-6106 |
| Parametric Technology Corp 540 Maryville Centre Dr, Creve Coeur 63141 | (314) 579-9644 |
| Peregrine Systems Inc 12400 Olive Blvd # 555, Creve Coeur 63141 | (314) 812-2530 |
| Innerlink Systems 13035 Olive Blvd, Creve Coeur 63141 | (314) 576-9098 |
| Firestream Worldwide Inc 12935 N Outer 40, Creve Coeur 63141 | (314) 434-4601 |
| Bentley Systems Inc 820 Phyllis Ln, Creve Coeur 63141 | (314) 692-9888 |