The quantum computing industry may be entering its gold rush era, and the biggest opportunity could belong to companies selling the tools rather than building the chips.
Nvidia (NASDAQ: NVDA), Microsoft (NASDAQ: MSFT), and Alphabet (NASDAQ: GOOG)(NASDAQ: GOOGL) are all positioned as upstream providers to the rapidly expanding quantum computing sector.
According to research by McKinsey, the quantum computing industry could be worth as much as $4.4 billion by 2028, up from $1 billion today.
None of these three companies currently earn a meaningful sum from quantum computing, yet each has staked out a distinct strategic position in the space.
Nvidia does not build a quantum chip, but its CUDA-Q software already runs on most public quantum processors available today.
The software splits computing jobs between graphics processing units and qubit hardware, and in October 2025 Nvidia launched NVQLink, an interconnecting layer wiring quantum processors to its own GPUs.
Within weeks of that launch, 17 quantum hardware builders and nine national labs were already using Nvidia’s solution, signaling strong early adoption across the industry.
Nvidia’s data center business cleared $194 billion last fiscal year, meaning its quantum-related revenue remains too small to detect against that backdrop.
For Nvidia to realize significant upside specifically from quantum, the market would likely need to grow to more than 10 times its projected near-term value.
Microsoft’s involvement in quantum computing is arguably more direct, as the company is developing its own quantum chip while also operating the Azure Quantum cloud marketplace.
Azure Quantum rents out cloud access to hardware from pure players including Quantinuum, IonQ, and Rigetti Computing, collecting a toll per job run on the platform.
In June 2026, Microsoft unveiled Majorana 2, a topological chip it claims is 1,000 times more reliable than its prior version, with a scalable successor targeted for 2029.
Alphabet’s Google Quantum AI builds its own superconducting quantum chips, and its 105-qubit Willow processor demonstrated exponential error reduction in December 2024.
Willow also showed a computational advantage over classical computers for certain tasks in October 2025, and the team experimented with a neutral-atom modality in March 2026.
Google Cloud represents the most plausible route for Alphabet to grow quantum revenue, potentially selling access to Willow processors the way Azure Quantum resells partner hardware.
Alphabet has already applied a similar model in an adjacent domain, having begun shipping its custom Tensor Processing Unit chips to select outside customers for installation in their own data centers.
Of the three, Nvidia holds the most direct exposure to quantum computing growth because its revenue remains indifferent to which qubit type ultimately becomes mainstream.
Microsoft ranks as a close second, given that its marketplace model carries relatively low risk while offering significant upside if quantum adoption accelerates across enterprise and research customers.
Alphabet’s bet is more concentrated, as its quantum revenue prospects depend heavily on its own chip development succeeding and becoming commercially accessible through Google Cloud.
Investors watching the quantum computing space should weigh each company’s existing infrastructure, strategic approach, and timeline before drawing conclusions about which upstream player stands to benefit most.
