Quantum Computing (QCi) is an early-stage technology company developing photonics-based quantum computing hardware and photonic chips. QCi's flagship product is the Dirac Entropy Quantum Computer (EQC), a quantum optimization machine designed to solve complex problems across use cases like logistics, financial portfolio analysis, fraud detection, and AI optimization. The Dirac-3 is available via cloud access or as an on-premises, rack-mounted unit that operates at room temperature with no cryogenic cooling required — a key differentiator from most competing quantum architectures. Beyond the EQC, QCi sells reservoir computing AI edge devices, quantum photonic vibrometers for remote sensing, quantum cybersecurity systems, and LiDAR systems. QCi also operates a thin film lithium niobate (TFLN) photonic chip foundry at Arizona State University's Research Park in Tempe, Arizona, selling custom chips to telecom, sensing, and quantum computing customers, and using TFLN chips internally to build next-generation versions of its own quantum machines. In early 2026, QCi acquired Luminar Semiconductor, a photonic semiconductor company serving aerospace & defense and optical communications customers, expanding QCi's chip design and fabrication capabilities. QCi sells directly to government agencies, research institutions, and commercial enterprises. Revenue streams include hardware sales, cloud-based machine access, government R&D contracts, and foundry services, though the company remains pre-profitability and in early-stage commercialization, with operating expenses far exceeding revenue. QCi has funded itself through equity raises and held approximately $800M in cash by late 2025.