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PsiQuantum competitors & alternatives
The 12 closest competitors and alternatives to PsiQuantum among quantum computing companies — ranked by similarity to what PsiQuantum actually does, not by market-cap band.
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About PsiQuantum
PsiQuantum, Corp. is an American quantum computing company based in Palo Alto, California. It is developing utility-scale, fault tolerant quantum computers using silicon photonics. The company has secured government partnerships to build their first systems in Australia and the United States.
PsiQuantum at a glance
PsiQuantum is a quantum computing company headquartered in United States. Its most recent funding round, Series E, raised $1B in September 2025. Xcout tracks 14 named people at PsiQuantum, including Victor Peng (Chief Executive Officer). Xcout recorded 122 job postings from PsiQuantum in the last 90 days, naming tools such as Palo Alto Networks, NetSuite, GitHub.
PsiQuantum leadership
- Victor PengChief Executive Officer
- Jeremy O'BrienPresident
- Sriram SitaramanChief Information Officer
- Jeremy O'BrienCo-Founder and Executive Chairman
- Rob SoderberyExecutive Vice President
- Jeremy O'BrienExecutive Officer
8 more named people on record for PsiQuantum, with roles, board committees and tenure — see the full roster →
PsiQuantum funding rounds
Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series E | $1B | 14 named | |
| SEC Form D filing | $22M | — | |
| Series D | $450M | 2 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Hiring at PsiQuantum
Xcout recorded 122 job postings from PsiQuantum in the last 90 days, from a hiring record Xcout has kept since June 2026.
Tools named in PsiQuantum's job postings
The weekly hiring trend, the roles and locations behind it — see PsiQuantum's hiring signals →
Top 12 PsiQuantum competitors
Ranked by semantic similarity — how close each company is to PsiQuantum by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Similar quantum computing company
Aegiq is a UK-based, privately held full-stack photonic quantum computing company founded in 2019 with its headquarters in Sheffield, England.
Similar quantum computing company
Quantum Source is a deep-tech company focused on developing scalable quantum computing technologies based on photonic platforms.
Quantum Technology
Qudara Inc. is a technology company headquartered in Santa Barbara, California, specializing in photonic quantum computing and networking at scale.
Quantum Technology
Q.ANT is a German quantum-computing company that develops photonic quantum processors and related software. It serves research institutions and industrial customers seeking quantum computing and quantum machine-learning solutions.
Similar quantum computing company
Monarch Quantum, Inc. is a U.S.-based quantum photonics company located in San Diego, California, that builds integrated photonics systems.
Similar quantum computing company
Xanadu Quantum Technologies Ltd is a Canadian photonic quantum computing company based in Toronto, specializing in designing photonic devices and building quantum computers and data centers.
Similar quantum computing company
QuiX Quantum is a European quantum computing company founded in Enschede, the Netherlands, in 2019, with subsequent office expansion to Amsterdam. The company specializes in developing integrated photonic quantum computing hardware and universal photonic processors.
Similar quantum computing company
Optalysys is a photonic computing company founded in 2013 that uses silicon photonics and optical technology to redefine high-performance computing and compute-in-transit solutions.
Similar quantum computing company
Founded in 2017, Quandela is a world leader in full-stack photonic quantum computing. The company develops hardware, middleware, and software for the quantum revolution, with offices in Germany, Canada, and France.
Similar quantum computing company
TuringQ is a private company headquartered in Shanghai, China, that focuses on quantum information research and manufactures optical quantum chips and optical quantum computers.
Similar quantum computing company
Ephos, Inc. is a Delaware-incorporated corporation with its business operations located in San Francisco, California. The company develops photonic integrated circuits and optical technologies.
Quantum Technologies
Anametric, Inc. is a small research firm based in Austin, Texas, that develops new technologies and devices for chip-scale quantum photonic cybersecurity. The company focuses on room-temperature quantum photonics applications.
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