| Business | Phone |
| Magic Technologies Group 1300 Valley Vista Dr # 255, Diamond Bar 91765 | (909) 861-1240 |
| My E Superstore 21700 Copley Dr, Diamond Bar 91765 | (909) 860-1828 |
| Advanced Data Management 1122 N Del Sol Ln, Diamond Bar 91765 | (909) 860-5717 |
| Data Systems Intl Diamond Bar 91765 | (909) 396-0877 |
| Ids Software 23610 Chandelle Pl, Diamond Bar 91765 | (909) 396-6472 |
| Interactive Systems Technology 556 N Diamond Bar Blvd # 102, Diamond Bar 91765 | (909) 978-2188 |
| Vital Group 556 N Diamond Bar Blvd # 301f, Diamond Bar 91765 | (909) 396-8296 |
| Synergy Systems Inc 3333 S Brea Canyon Rd # 206, Diamond Bar 91765 | (909) 839-0400 |
| Sie Software 1300 Valley Vista Dr, Diamond Bar 91765 | (909) 861-2241 |
| Nemrac International Diamond Bar 91765 | (909) 396-1799 |