| Business | Phone |
| Calaveras Cement Co 2201 W Washington St, Stockton 95203 | (209) 465-1921 |
| Calaveras Cement Co Port A Harbor Rd, Stockton 95205 | (209) 465-2624 |
| California Portland Cement 2201 W Washington St # 6, Stockton 95203 | (209) 469-0109 |
| Isg 2025 W Hazelton Ave, Stockton 95203 | (209) 469-0625 |
| Riverside Cement Stockton 2845 W Washington St, Stockton 95203 | (209) 948-0529 |
| Sunshine Cement Inc 2321 W Washington St, Stockton 95203 | (209) 467-8065 |