| Business | Phone |
| Todd's Computer Systems Inc 550 E Bethany Dr 324, Allen 75002 | (214) 547-0341 |
| Sun Gard Allen 75002 | (972) 396-5752 |
| Acutate Design 1710 Lake Whitney Ln, Allen 75002 | (972) 897-2641 |
| Red Phoenix 1023 S Greenville Ave, Allen 75002 | (214) 206-4917 |
| World Class Software 1024 S Greenville Ave, Allen 75002 | (469) 854-0100 |
| Cass Systems Inc 2033 W Mcdermott Dr, Allen 75013 | (214) 383-1519 |