| Business | Phone |
| Best Software Inc 56 Technology Dr, Irvine 92618 | (949) 753-1222 |
| Fair Isaac Corp 110 Theory, Irvine 92617 | (949) 655-3200 |
| Advantage Systems 2 Executive Cir # 150, Irvine 92614 | (949) 250-0260 |
| Q S Labs Inc 5 Park Plz # 1550, Irvine 92614 | (949) 862-5000 |
| Raining Data Corp 17500 Cartwright Rd, Irvine 92614 | (949) 442-4400 |
| Tibco Software Inc 2030 Main St # 1300, Irvine 92614 | (949) 260-4900 |