| Business | Phone |
| A 1 Hour Signs 4 Nihan Dr #5, St Catharines L2N 1L1 | (905) 934-6798 |
| Administrative Design 323 St. Paul St W, St Catharines L2S 2E8 | (905) 988-6196 |
| Architectural Signs & Display 64 Hillcrest Ave, St Catharines L2R 4Y1 | (905) 687-9800 |
| Auto Fx 113 Cushman Rd #44, St Catharines L2M 6S9 | (905) 685-3266 |
| Great Canadian Sign Co 7 Sharon St, St Catharines L2N 3J3 | (905) 646-7446 |
| H B Signs 78 Haig St, St Catharines L2R 6L1 | (905) 684-5017 |
| Harris Sign Co 340 Queenston St, St Catharines L2P 2X4 | (905) 682-4294 |
| Kosmic Arts 21 Riordon St, St Catharines L2R 4K2 | (905) 684-6790 |
| Line Design 76 Prince Charles Dr, St Catharines L2N 3Z1 | (905) 646-4568 |
| Mc Keown Sign Co 514 Queenston St, St Catharines L2R 7K6 | (905) 684-6445 |
| Neon By-Onyx 49 Herrick Ave, St Catharines L2P 3S6 | (905) 984-6004 |
| Niagara Plastic Signs Inc 10 Davidson St, St Catharines L2R 2V4 | (905) 688-5545 |
| Niagara Signworks 7 Bala Pl, St Catharines L2N 5Z8 | (905) 938-7446 |
| Pizzati Signs 281 Lake St, St Catharines L2R 5Z7 | (905) 682-3212 |
| Barber Monuments Ltd 120 Bunting Rd, St Catharines L2P 3G5 | (905) 684-7913 |
| Best Signs & Graphics 65 Rolls Ave, St Catharines L2N 1W3 | (905) 641-8856 |
| Signs On Demand 47 Elizabeth St, St Catharines L2R 2L5 | (905) 641-1968 |
| Signlink 380 Vansickle Rd #470, St Catharines L2R 6P7 | (905) 646-9232 |
| Transaction Graphics 43 Seapark Dr, St Catharines L2M 6S5 | (905) 684-4006 |
| Epidemic Designs 21 Woodburn Ave, St Catharines L2P 2W6 | (905) 682-6621 |
| Fastsigns 10 Dunlop Dr #F, St Catharines L2R 1A2 | (905) 984-3278 |