PsiQuantum: Funding, Investors & Team (Sep 2026)
PsiQuantum is on a mission to build the world’s first commercially viable quantum computer, powered by breakthroughs in silicon photonics and quantum architecture. PsiQuantum believes silicon photonics is the only way to scale beyond one million qubits and deliver an error-corrected, fault-tolerant, general-purpose quantum computer. With quantum chips now being manufactured in a world-leading semiconductor fab, PsiQuantum is uniquely positioned to deliver quantum capabilities that drive advances with customers and partners in applications across climate, healthcare, finance, energy, agriculture, transportation, communications, and more.
PsiQuantum has raised $1.4B across 2 funding rounds on record, the most recent a Series E of $1.0B announced in Sep 2025.
That round is above the $7.5M median round size for Consumer Electronics companies tracked on FundedIQ over the last two years.
PsiQuantum Company Profile and Key Stats
Latest funding round on record: Sep 2025.
PsiQuantum Funding Rounds
PsiQuantum raised $450M in a Series D announced in Jul 2021.
4.2 years later, a Series E of $1.0B was announced in Sep 2025.
PsiQuantum Founders and Leadership Team
No contact details are on record for this team yet.
PsiQuantum Funding Compared to Other Consumer Electronics Startups
PsiQuantum's latest round of $1.0B is above the median round in Consumer Electronics. Medians cover the last 24 months of disclosed rounds.
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PsiQuantum Funding FAQs
What does PsiQuantum do?
PsiQuantum is on a mission to build the world’s first commercially viable quantum computer, powered by breakthroughs in silicon photonics and quantum architecture. PsiQuantum believes silicon photonics is the only way to scale beyond one million qubits and deliver an error-corrected, fault-tolerant, general-purpose quantum computer. With quantum chips now being manufactured in a world-leading semiconductor fab, PsiQuantum is uniquely positioned to deliver quantum capabilities that drive advances with customers and partners in applications across climate, healthcare, finance, energy, agriculture, transportation, communications, and more.
How much funding has PsiQuantum raised?
PsiQuantum has raised $1.4B across 2 rounds on record. The most recent is a Series E of $1.0B announced in Sep 2025.
When did PsiQuantum last raise funding?
PsiQuantum's most recent funding round on record is a Series E of $1.0B, announced in Sep 2025.
Who is the CEO of PsiQuantum?
Jeremy O'Brien is listed as CEO at PsiQuantum.
Where is PsiQuantum headquartered?
PsiQuantum is based in Palo Alto, California, United States.
How many employees does PsiQuantum have?
PsiQuantum is in the 101-250 employee band.
How does PsiQuantum's funding compare to other Consumer Electronics startups?
PsiQuantum's latest round of $1.0B is above the $7.5M median round size for Consumer Electronics companies on FundedIQ across 1,547 tracked companies over the last two years.
About FundedIQ's PsiQuantum Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for PsiQuantum is left off this page rather than filled in.
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