Qolab raises $54.2m Series B to scale superconducting quantum hardware
Qolab Inc. has closed the initial tranches of a Series B financing that totals $54.2 million when including the conversion of $12.6 million in existing convertible securities and a $10 million commitment for future convertible notes. UC Investments, the University of California's Office of the Chief Investment Officer, led the round, with continued participation from Wisconsin Alumni Research Foundation (WARF), Octave Ventures, and Phoenix Venture Partners.
The Santa Barbara company develops superconducting quantum computing hardware and frames the raise as the fuel for three parallel workstreams: advancing scalable superconducting systems, expanding collaborations with semiconductor manufacturers, and pushing towards fault-tolerant operation. The announcement was timed to coincide with the 75th Lindau Nobel Laureate Meeting, where Qolab co-founder and chief technology officer Dr John Martinis, recipient of the 2025 Nobel Prize in Physics, was in attendance.
The deal
Alan Ho, co-founder and chief executive, said the financing reinforces the company's ability to work closely with the semiconductor industry on manufacturing scale-up. "Solving the most difficult challenges in quantum computing requires deep collaboration with the semiconductor industry to effectively scale manufacturing," Ho said. "The support of UC Investments, together with our existing financial and semiconductor investors, strengthens our ability to deliver scalable quantum technologies that can transform computing."
Qolab's ties to the University of California system run deeper than the investment relationship. The company collaborates with Lawrence Berkeley National Laboratory through the Quantum Systems Accelerator, a US Department of Energy National Quantum Information Science Research Center, and works with researchers at UC Santa Barbara on next-generation quantum algorithms. UC Investments chief investment officer Jagdeep Singh Bachher described the round as consistent with the office's broader mandate to back transformative science.
The release did not disclose post-money valuation, current qubit count, error rates, or any committed commercial contracts.
Market context
Qolab occupies a crowded and well-capitalised segment of the quantum-hardware landscape. Superconducting architectures are also pursued by IBM, Google and Rigetti, each of which has demonstrated multi-hundred-qubit systems and published detailed error-correction roadmaps. The competitive dynamic places a premium on two factors that Qolab specifically addresses: semiconductor process quality and manufacturing yield at scale. By positioning semiconductor partnerships as a core differentiator rather than a secondary consideration, Qolab is implicitly acknowledging that qubit count alone is no longer sufficient to attract enterprise and government buyers.
Investor composition is notable. WARF and the presence of named semiconductor-specialist investors alongside a major university endowment suggests Qolab is pursuing a research-adjacent commercialisation path, where licensing, government contracts, and academic spin-out work may precede a mainstream enterprise product. This model has precedent in the quantum sector, where near-term revenue more often comes from cloud-access pilots and public-sector grants than from direct hardware sales.
Standards read-across
Fault-tolerant quantum computing, the stated end goal, remains years away for all vendors. NIST's post-quantum cryptography standards are already prompting critical-infrastructure operators to begin migration planning on classical systems rather than waiting for quantum hardware to mature. Qolab's roadmap sits on a longer horizon, though any demonstration of meaningful fault tolerance would reset competitive timelines across the sector. US export-control frameworks, including Department of Commerce rules on advanced semiconductor equipment, may also bear on the company's ability to source fabrication capacity internationally as it scales. Investors and partners will look for published qubit-fidelity benchmarks and a named semiconductor foundry partnership as the next meaningful proof points.