| Business | Phone |
| Ikuei Seminars 18013 Sky Park Cir # B, Irvine 92614 | (949) 757-0883 |
| Sandler Sales Institute 17310 Red Hill Ave, Irvine 92614 | (949) 450-1425 |
| Sigma-Tell Corp 18013 Sky Park Cir # D, Irvine 92614 | (949) 756-8585 |
| South Coast Gymnasts Training 17850 Sky Park Cir, Irvine 92614 | (949) 833-0077 |