| Business | Phone |
| Expo Specialty Systems 7670 Trade St # D, San Diego 92121 | (858) 348-1943 |
| Jeffco Epoxy Products 5252 Kearny Villa Way, San Diego 92123 | (858) 576-9900 |
| Johnstan Co 5401 Linda Vista Rd, San Diego 92110 | (619) 574-0610 |
| Kirwan Co 7377 Convoy Ct, San Diego 92111 | (858) 268-1550 |