Trihedral Engineering Limited (Trihedral) is a Bedford, Nova Scotia, Canada–based creator of industrial automation software. The VTScada SCADA platform is the company's main product. Trihedral's has customers in fresh water and wastewater, subsea and terrestrial oil production, air traffic management monitoring systems, fire station and 911 emergency alerting systems, national broadcast networks, marine systems, manufacturing, and food & beverage industries.