Best Quantum Computing Stocks to Watch

The Rise of Quantum Computing

Quantum computing is now a reality, transforming technology beyond science fiction. Investors interested in this field should know which companies are leading the charge. This overview highlights top quantum computing stocks, featuring both established tech giants and innovative newcomers. Learn what makes them stand out, their future potential, and why they may be strong investment choices.

IBM (IBM)

IBM is a pioneer in quantum computing research, continuously advancing scalable quantum processors. Its IBM Quantum Experience platform offers cloud-based access to real quantum machines worldwide, enabling researchers and developers to explore quantum computing without owning hardware.

• Progress in increasing qubits and error correction.
• Cloud quantum services are accessible globally.
• Strong research partnerships with academia and industry.

Alphabet Inc. (GOOGL)

Through Google Quantum AI, Alphabet strives for quantum supremacy and algorithm improvements, placing it among the top contenders in quantum computing.

• First to achieve quantum supremacy in a major experiment.
• Focus on qubit stability and error correction.
• Expertise combining AI and quantum computing.

Honeywell International Inc. (HON)

Honeywell specializes in trapped-ion quantum computers, offering highly stable and reliable quantum systems. The company delivers quantum solutions for business sectors including aerospace, manufacturing, and finance.

• Leading trapped-ion quantum technology.
• The Quantum Solutions team is working with industry clients.
• Focus on practical applications beyond laboratory research.

Rigetti Computing (Private, Expected IPO Soon)

Rigetti provides quantum cloud services and develops hybrid systems combining classical and quantum processors, enabling new problem-solving approaches.

• Quantum cloud access for businesses and researchers.
• Hybrid quantum-classical computing systems.
• Expected to go public soon.

IonQ Inc. (IONQ)

IonQ is among the first publicly traded pure-play quantum computing companies, focusing on trapped-ion technology to deliver steady qubits and reliable results.

• Public company focused solely on quantum computing.
• Trapped-ion technology is known for qubit stability.
• Partnerships for cloud integration and scalability.
• Emphasis on real-world quantum applications.

Microsoft Corporation (MSFT)

Microsoft’s Quantum Azure platform integrates quantum computing with cloud services, enabling global access and accelerating quantum research deployment.

• Investment in topological qubits for better stability and error correction.
• Ecosystem supporting quantum algorithm development alongside cloud tools.
• Long-term commitment to quantum technology growth.

Intel Corporation (INTC)

Intel, a semiconductor leader, invests in silicon-based qubits, aiming to combine quantum hardware with existing chip manufacturing expertise.

• Development of advanced silicon quantum hardware.
• Leverages extensive semiconductor experience.
• Goal to integrate quantum and classical computing.
• Designs scalable, stable qubit architectures.

D-Wave Systems (Private)

D-Wave employs quantum annealing technology to tackle complex optimization problems across industries such as logistics, finance, and materials science.

• Unique quantum annealing approach.
• Systems solving real-world scheduling, routing, and portfolio challenges.
• Trusted by governments and private companies.
• Focused on practical quantum computing applications.

Alibaba Group (BABA)

Alibaba’s DAMO Academy drives quantum research and cloud computing in the Asia-Pacific region, advancing quantum algorithms and hardware.

• Developing cloud-ready quantum algorithms.
• Investment in enhanced quantum hardware capabilities.
• Collaboration with global academic and industry partners.
• Preparing quantum cloud services for businesses.

ColdQuanta (Private)

ColdQuanta focuses on atom-based quantum computing using ultra-cold atoms to build scalable, stable systems and accelerates commercialization through industry partnerships.

• Atom-based quantum hardware is distinct from superconducting qubits.
• Emphasis on scalability and stability.
• Collaboration with industry leaders to develop quantum applications.
• Targeting real-world use cases like materials science and cybersecurity.

Final Thoughts 

Quantum computing is moving forward quickly, combining new research with real-world uses. Companies like IBM, Alphabet, Honeywell, and new ones like IonQ and Rigetti are helping to shape this future. To make smart choices, investors should keep an eye on these companies’ new products and marketing plans. Quantum technology is getting better, and when it does, it will change the way we use computers and open up a lot of new possibilities.

Frequently Asked Questions

What Is Quantum Computing?

Quantum computing uses quantum bits, or qubits, that can exist in multiple states simultaneously, allowing quantum computers to solve complex problems much faster than classical computers. This technology has the potential to revolutionize fields such as cryptography, materials science, and optimization.

Why Are Companies Investing in Quantum Computing?

Companies invest in quantum computing to gain competitive advantages in processing power and problem-solving capabilities. Quantum computing promises breakthroughs in pharmaceuticals, finance, artificial intelligence, and more, creating vast opportunities for innovation and economic growth.

Are Quantum Computers Available for Use Today?

Yes, many companies provide cloud access to quantum computers, allowing researchers and developers worldwide to experiment with quantum algorithms without owning the hardware. While large-scale, fault-tolerant quantum computers are still in development, available platforms enable practical exploration.

What Should Investors Consider About Quantum Computing Stocks?

Investing in quantum computing stocks involves evaluating company research, technology maturity, market readiness, and partnerships. The field is rapidly evolving with high potential but also inherent risks due to technological challenges and competition.

Written by Vincent Chan Updated August 22, 2025 by Albert Fang