| Business | Phone |
| Blue Dolphin Engineering 5188 N Harrison Ave, Fresno 93711 | (559) 222-4217 |
| Fyr Designs 5260 N Valentine Ave # 103, Fresno 93711 | (559) 907-3739 |
| Hagopian Engineering 2353 E Conejo Ave, Fresno 93725 | (559) 891-1901 |
| John Chong Engineering 433 E Keats Ave, Fresno 93710 | (559) 325-9988 |
| Magnuson General Engineering 7088 E Jensen Ave, Fresno 93727 | (559) 268-3183 |
| Blue Dolphin Engineering 2727 N Sunnyside Ave # 105, Fresno 93727 | (559) 292-8111 |