| Business | Phone |
| Angulo's Signs 2029 S Campus Ave, Ontario 91761 | (909) 923-6722 |
| Arts & Letters Sign Co 1133 Brooks St # C, Ontario 91762 | (909) 984-8881 |
| Day N Nite Signs 2124 S Grove Ave # M, Ontario 91761 | (909) 773-0150 |
| Discount Signs & Banners Ontario 91764 | (909) 946-0028 |
| Eagle Signs 1028 E Acacia St, Ontario 91761 | (909) 923-3034 |
| Innovative Signs 2324 S Vineyard Ave # H, Ontario 91761 | (909) 947-7641 |
| Ever-Glow Signs 2128 S Grove Ave # C, Ontario 91761 | (909) 930-5554 |
| Main Street Signs 1211 Brooks St # A, Ontario 91762 | (909) 391-0988 |
| Ontario Neon Co 303 W Main St, Ontario 91762 | (909) 986-4632 |
| Sign City 1469 E Philadelphia St, Ontario 91761 | (909) 627-4032 |
| Sign-A-Rama 4295 Jurupa St # 106, Ontario 91761 | (909) 937-9110 |
| Signature Signs 1952 E Alondra Ct, Ontario 91764 | (909) 305-8881 |
| Signs Of Success 2313 E Philadelphia St # N, Ontario 91761 | (909) 923-1107 |
| Signs Plus 924 E H St, Ontario 91764 | (909) 984-3432 |
| Star Electrical Signs 2132 S Grove Ave # H, Ontario 91761 | (909) 923-3707 |
| Street Wize 942 N Mountain Ave, Ontario 91762 | (909) 986-7448 |
| Swain Sign Installation 1384 E 5th St, Ontario 91764 | (909) 460-2530 |
| Tribute Signs 125 S Oaks Ave, Ontario 91762 | (909) 984-4800 |
| Vision Signs 4355 E Airport Dr # 104, Ontario 91761 | (909) 390-4935 |
| Young Electric Sign Co 1443 S Cucamonga Ave, Ontario 91761 | (909) 923-7668 |
| SignArama 1119 S. Milliken Ave #A, Ontario 91761 | (909) 975-4400 |