Quantum Robotic Systems Inc. (QRS) is a Toronto-based company focused on developing stair-climbing robots, carts and wheelchairs that carry cargo and people up and down stairs in a safer, easier and faster way. Using stairs while carrying heavy or bulky things can be a dangerous hazard. QRS has developed and patented a novel stair-climbing technology that makes using the stairs safer and more efficient for a broad spectrum of users (e.g., movers, couriers, seniors, people with impaired mobility, etc.).