Q-Block Computing Inc. is a vertically-integrated quantum technology startup with a long-haul perspective to quantum information science. It is of fundamental interest for human kind to explore and manipulate the physical universe with its most elementary building blocks, atoms and photons. Our mission is to harness the computational complexities of these building blocks to help address the grand scientific challenges of our time. We were founded with the aspiration to commercialize modular quantum systems (Q-block modules) as the physical layer of a networked quantum architecture for computation, communication, and sensing.