| Business | Phone |
| Atomic Aquatics Inc 16742 Burke Ln, Huntington Beach 92647 | (714) 375-1433 |
| Calisher & Assoc Inc 18377 Beach Blvd, Huntington Beach 92648 | (714) 843-5997 |
| Cash & Assoc 5772 Bolsa Ave # 100, Huntington Beach 92649 | (562) 426-6145 |
| Defense Consulting & Contr 19671 Beach Blvd, Huntington Beach 92648 | (714) 374-3338 |
| Envirocon Consulting Engineers 20422 Beach Blvd # 305, Huntington Beach 92648 | (714) 960-7633 |
| Ads Consulting Engineers 221 Main St # L, Huntington Beach 92648 | (714) 969-6799 |
| Allied Environmental Technolgs 15182 Bolsa Chica St, Huntington Beach 92649 | (714) 799-9895 |
| Applied Analysis & Technology 16731 Sea Witch Ln, Huntington Beach 92649 | (714) 846-4235 |