| Business | Phone |
| A & M Development 2676 Holly Dr, Upland 91784 | (949) 715-1337 |
| Allsup Corp 1848 W 11th St # K, Upland 91786 | (909) 931-1636 |
| C & G Construction Svc 869 E Foothill Blvd # J, Upland 91786 | (909) 608-0080 |
| Inland Asphalt & Coatings 1870 W 9th St, Upland 91786 | (909) 981-2355 |
| J P La Barge Construction 305 E 9th St, Upland 91786 | (909) 931-9763 |
| Maj International Inc 1221 Endeavor Dr, Upland 91786 | (909) 949-0469 |
| Jnl Consulting 1182 Monte Vista Ave # 15, Upland 91786 | (909) 579-0354 |