Sparrow Quantum pioneers chip technology that generates the qubits that power optical quantum computers, quantum communication, and the quantum internet. Their core technology, an on-chip deterministic single-photon source designed to deliver a steady stream of single photons, is based on self-assembled quantum dots coupled to a slow-light photonic-crystal waveguide. Enabling clients to increase light-matter interaction and enhance chip out-coupling, Sparrow's technology sets industry benchmarks and has been adopted by quantum technology leaders worldwide.