| Business | Phone |
| Golder Associates Inc 2221 Niagara Falls Blvd # 9, Niagara Falls 14304 | (716) 215-0650 |
| Polka Engineering 2914 Pine Ave, Niagara Falls 14301 | (716) 284-5305 |
| Preservation Consultation 1201 Pine Ave # 316, Niagara Falls 14301 | (716) 282-1800 |