| Business | Phone |
| 800 Rob Hall Exton 19341 | (610) 524-6509 |
| Analytical Graphics Inc 220 Valley Creek Blvd, Exton 19341 | (610) 578-1000 |
| Wienerdog Software Inc 48 Carriage Ln, Exton 19341 | (610) 458-7363 |
| Augustine & Co Computer Assocs 310 Exton Cmns, Exton 19341 | (610) 524-0320 |
| Automa Tech Inc 319 N Pottstown Pike, Exton 19341 | (484) 875-2800 |
| Automated Financial Systems 123 Summit Dr, Exton 19341 | (610) 524-9300 |
| Ugs 411 Eagleview Blvd, Exton 19341 | (610) 458-3660 |
| C/F Software Solutions 56 E Uwchlan Ave, Exton 19341 | (610) 873-4200 |
| Ceridian Pennsylvania Tech Center 782 Springdale Dr # 200, Exton 19341 | (484) 875-4400 |
| James D Chaban 329 Laurel Moors Dr # 100, Exton 19341 | (610) 524-4160 |
| Summit Software Systems Inc Exton 19341 | (610) 363-8055 |
| Ternary Software 140 S Village Ave, Exton 19341 | (610) 594-8914 |
| Cincom Systems Inc 300 N Pottstown Pike, Exton 19341 | (610) 524-3118 |
| Roussey Associates 436 Creamery Way # J, Exton 19341 | (610) 524-1346 |
| Scala Inc Research & Developme 350 Eagleview Blvd # 150, Exton 19341 | (610) 363-3350 |
| Software Logic 640 Rice Blvd, Exton 19341 | (610) 458-3554 |
| Dennis R Mc Manus & Assoc 334 Gordon Dr, Exton 19341 | (610) 280-7770 |
| Pastime Software Inc 300 N Pottstown Pike, Exton 19341 | (610) 363-7844 |
| Pearl Software Inc 64 E Uwchlan Ave Pmb 230, Exton 19341 | (610) 458-2387 |
| Nte Software Svc 558 W Uwchlan Ave, Exton 19341 | (610) 594-9122 |
| Objective Systems 102 Pickering Way # 506, Exton 19341 | (484) 875-9841 |
| Ocr Svc Inc 557 W Uwchlan Ave # 240, Exton 19341 | (610) 280-7971 |
| Ifs 140 S Village Ave, Exton 19341 | (610) 269-2350 |
| Lighthammer Software Dev 350 Eagleview Blvd # 110, Exton 19341 | (610) 903-8000 |