| Business | Phone |
| Ashwill Investments 18005 Sky Park Cir # H, Irvine 92614 | (949) 476-8088 |
| Granite Investment Group 2 Park Plz, Irvine 92614 | (949) 477-5800 |
| Pentagon A Investments 17872 Mitchell N # 250, Irvine 92614 | (949) 474-7779 |
| Scientific Capital Group 1 Park Plz # 6, Irvine 92614 | (714) 772-4227 |
| Thomas Seaman Co 1 Park Plz, Irvine 92614 | (949) 222-0117 |
| Z B Investment Co 1900 Main St # 350, Irvine 92614 | (949) 622-0400 |