| Business | Phone |
| Marvell Semiconductor 1823 Sunset Pl, Longmont 80501 | (303) 678-5248 |
| Marvell Semiconductor Inc 1951 S Fordham St, Longmont 80503 | (303) 651-5800 |
| National Semiconductor Corp 1820 Lefthand Cir, Longmont 80501 | (303) 845-4000 |
| Philips Semiconductors 1880 Industrial Cir, Longmont 80501 | (303) 485-5382 |
| St Micro Electronics 1625 S Fordham St # 500, Longmont 80503 | (303) 772-9729 |
| Vitesse Semiconductor Corp 1921 Corporate Cir, Longmont 80501 | (303) 651-1000 |