Shares of pure-play quantum computing companies D-Wave Quantum (QBTS), Rigetti Computing (RGTI), and IonQ (IONQ) have surged after Amazonâs (AMZN) head of AI models and quantum computing told CNBC that the first âcommercially usefulâ quantum computers could arrive within the next five to seven years. Claim 55% Off TipRanks Explore AMZO for 2X short leverage on AMZNThe comments renewed investor confidence that commercially useful quantum computing may be closer than previously expected. Each company uses a distinctive strategy and presents a different risk profile within the rapidly advancing quantum computing industry. How These Quantum Companies Differ D-Wave Quantum â D-Wave specializes in quantum annealing, a technology designed to solve complex optimization problems such as scheduling, logistics, and resource allocation. QBTS reported record Q1 bookings of $33.4 million, up nearly 2,000% year-over-year, driven by a $20 million system sale and a $10 million QCaaS deal. Yet, revenue fell 81% to $2.9 million and losses widened, though a growing backlog points to stronger future revenue potential. Rigetti Computing â Rigetti is a gate-based quantum computing company that builds quantum processors, quantum computers, and the software needed to run quantum applications. Q1 revenue jumped about 200% yearâoverâyear to $4.4 million, beating estimates of $4.09 million. A key highlight was the launch of Rigettiâs 108-qubit Cepheus-1-108Q system, which the company says is among the worldâs most powerful commercially available gate-based quantum computers. IonQ â IonQ uses a trapped-ion approach that operates at room temperature, unlike superconducting systems that require cryogenic cooling. IonQ reported record Q1 revenue of $64.7 million, up 755% year-over-year and above guidance. The company also raised its 2026 outlook, signaling strong demand and growing customer adoption of its quantum computing products. Which Stock Offers the Highest Upside, According to Analysts? Using TipRanksâ Stock Comparison Tool, we compared IonQ, Rigetti Computing, and