PsiQuantum Valuation, Funding & Investors

PsiQuantum is valued at $7B as of September 2025.

Last PsiQuantum valuation

$7B

Series E · Sep 2025

Last PsiQuantum funding round

Undisclosed stage

Amount undisclosed · Jan 2026

Cumulative funding PsiQuantum raised

$2.3B

across 8 funding rounds

Key investors in PsiQuantum

  • Temasek
  • BlackRock
  • Baillie Gifford
  • Founders Fund
  • M12
  • Blackbird Ventures

PsiQuantum Overview

About PsiQuantum

PsiQuantum is a quantum computing company that builds fault-tolerant, utility-scale quantum computers on photonic qubits. It was founded by Jeremy O'Brien, Terry Rudolph, Peter Shadbolt and Mark Thompson, who developed the approach as academics in the United Kingdom. The company manufactures its silicon photonic chips in a commercial semiconductor foundry, GlobalFoundries, rather than in a research fab, and designs the cryogenic cooling, networking and control systems needed to link very large numbers of qubits. It is headquartered in Palo Alto, California, and is building large quantum computing sites in Brisbane, Australia and Chicago, Illinois. Customers and partners are governments, national laboratories and large enterprises that want access to quantum machines for chemistry, materials science, drug discovery and other simulation work. The company earns money from government agreements and development contracts and expects to sell access to its systems once they are commercially useful.


Founded

2016

HQ

United StatesPalo Alto, CA

Status

Privately held

Customer focus

B2B

Revenue model

Services

Valuation

$7B (Sep 2025)

PsiQuantum Valuation

PsiQuantum is currently valued at $7B, based on its Series E in September 2025. Read the announcement ↗

The $1B round was led by Baillie Gifford, BlackRock and Temasek, with participation from Blackbird Ventures, NVentures, Qatar Investment Authority, Counterpoint Global, T. Rowe Price and 6 other investors.

PsiQuantum's valuation has grown 2.2x from $3.1B at its Series D in July 2021 to $7B in September 2025, across 2 priced rounds.

PsiQuantum valuation by funding round

PsiQuantum valuation by funding round
DateStageValuation
Sep 2025Series E$7B
Jul 2021Series D$3.1B

PsiQuantum Funding History

PsiQuantum has raised a total of $2.3B across 8 funding rounds.

PsiQuantum's first fundraising round was a $14M Series A in June 2016. The most recent completed round was a undisclosed-stage round in January 2026.

PsiQuantum funding rounds

PsiQuantum funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Jan 2026Undisclosed stageOGBC Group (lead); Temasek; NVentures; Australian Government--OGBC Group, a Singapore-based innovation hub and investment group, announced on 21 January 2026 that it had completed a Series C preferred equity investment in PsiQuantum through its OGBC Premier PQ Fund. The size of the investment was not disclosed. The announcement was headlined as made with participation from NVIDIA, through its NVentures arm, and Temasek, and OGBC said it was joining a group of institutional backers that includes the Australian federal and Queensland governments, BlackRock and Baillie Gifford. The investment followed PsiQuantum's US$1 billion Series E of September 2025, which valued the company at US$7 billion. PsiQuantum, founded in 2016 and based in Palo Alto, California, is building utility-scale, fault-tolerant quantum computers on silicon photonics manufactured at GlobalFoundries, with sites planned in Brisbane, Australia and Chicago. OGBC's chairman Jayden Wei said the company combined scientific rigour with industrial-scale execution.
Sep 2025Series EBaillie Gifford (lead); BlackRock (lead); Temasek (lead); Blackbird Ventures; NVentures; Qatar Investment Authority; Counterpoint Global; T. Rowe Price; Ribbit Capital; Adage Capital Management; 1789 Capital; Macquarie Group; Third Point Ventures; Type One Ventures$1B$7BPsiQuantum, a Palo Alto-based quantum computing startup founded in 2016, develops fault-tolerant, million-qubit scale quantum computers using photonic qubits and semiconductor manufacturing processes. The company aims to deliver the world's first commercially useful quantum computer by targeting 2027, with sites planned in Brisbane, Australia, and Chicago, USA. In September 2025, PsiQuantum raised $1 billion in its Series E funding round, achieving a $7 billion post-money valuation. The round was led by BlackRock (funds and accounts managed by affiliates), Temasek, and Baillie Gifford, with participation from new investors including Nvidia’s NVentures, Macquarie Capital, Ribbit Capital, Adage Capital Management, Qatar Investment Authority, and others, alongside existing backers like T. Rowe Price. The funding supports scaling photonic chip production, deploying prototype systems, breaking ground on utility-scale quantum computing sites, and advancing fault-tolerant architecture. PsiQuantum leverages partnerships with GlobalFoundries, NVIDIA, and governments in the U.S., Australia, and UK to address manufacturing, cooling, and networking challenges in quantum computing.
Jan 2025Undisclosed stageStack Capital Group--Stack Capital Group Inc. invested US$0.5 million in PsiQuantum during the third quarter of 2025, as reported in its Q3-2025 results, making it a small position next to its OpenAI and Databricks purchases in the same quarter. In July 2026 Stack reported that PsiQuantum had signed a US$125 million performance-based agreement with DARPA, its largest US government award to date. PsiQuantum is building a fault-tolerant quantum computer based on photonics, using silicon chips manufactured in semiconductor foundries. The company was founded in 2016 and is headquartered in the United States.
Apr 2024Undisclosed stageAustralian Government (lead); Queensland Government$609M-In April 2024 the Australian federal government and the Queensland government announced a combined A$940 million commitment to PsiQuantum, equal to roughly US$610 million, to support construction of a utility-scale, fault-tolerant quantum computer in Brisbane. The package was reported as A$470 million from each government, delivered through share purchases, grants and loans, and ranks among the largest under the Albanese government's Future Made in Australia policy. PsiQuantum, a Palo Alto-based company founded in 2016 that builds photonic quantum computers manufactured in semiconductor foundries, said it would locate its regional headquarters at Brisbane Airport and create up to 400 skilled jobs. The commitment brought the company's total private and public funding to nearly US$1.3 billion at the time, which made it the best-funded independent quantum computing company. The Brisbane system was targeted for operation by the end of 2027, in parallel with a second site planned in Chicago.
Jul 2021Series DBlackRock (lead); Temasek; Baillie Gifford; Blackbird Ventures; SevenTrainVentures; M12$450M$3.1BPsiQuantum, a quantum computing startup founded in 2015 by Professor Jeremy O’Brien, develops fault-tolerant quantum computers using photonic technology and silicon photonics manufacturing via partnerships like GlobalFoundries. The company aims to build million-qubit-scale machines for commercial utility, with major contracts from governments in Australia and the US for quantum supercomputer sites in Brisbane and Chicago. In July 2021, PsiQuantum raised $450 million in a Series D funding round led by BlackRock (referred to as Blackrock Enhanced), with participation from Baillie Gifford, Blackbird Ventures, M12 (Microsoft's venture arm), Temasek Holdings, and others including Seven Train Ventures. This round valued the company at $3.15 billion post-money, reflecting strong investor confidence in its approach to scaling quantum systems despite no commercial products yet. The funding supported team expansion and development toward a one-million-qubit machine, positioning PsiQuantum ahead of competitors in the quantum race. Subsequent rounds included a $750 million raise in March 2025 at $6 billion pre-money and a $1 billion Series E in September 2025 at $7 billion post-money, led by BlackRock, Temasek, and Baillie Gifford, with new investors like Nvidia's NVentures.
Apr 2020Series CAtomico (lead); Baillie Gifford; BlackRock; M12; Founders Fund$150M-PsiQuantum is a photonics-based quantum computing company founded in 2015 in Palo Alto by Jeremy O'Brien, Mark Thompson, Peter Shadbolt, and Terry Rudolph. The company develops fault-tolerant, universal quantum computers leveraging semiconductor infrastructure and silicon photonics technology, with applications targeted at drug discovery, artificial intelligence, and materials science. PsiQuantum raised $150 million in Series C funding in April 2020 led by Atomico, with the stated motivation to accelerate the development of photonic quantum technology and expand the team. This Series C represented an important milestone in the company's development, following earlier funding rounds. PsiQuantum has since grown into one of the most well-funded quantum computing companies globally, securing a subsequent $450 million Series D in July 2021 from BlackRock, followed by a major $940 million Australian government investment in April 2024, and a $1 billion Series E in September 2025 that valued the company at $7 billion. The company established high-volume manufacturing processes for its integrated photonic chipsets in partnership with GlobalFoundries and has committed to operationalizing its Brisbane quantum facility by 2027 alongside a facility in Chicago.
Sep 2017Series BFounders Fund (lead)$50M-PsiQuantum, founded in 2015 in Palo Alto by Jeremy O’Brien, Mark Thompson, Peter Shadbolt, and Terry Rudolph, develops photonics-based quantum computing technology leveraging semiconductor infrastructure to scale photonic qubit production for applications in drug discovery, AI, and materials science. The company raised $50 million in its Series B round in September 2017 led by Founders Fund to expand R&D efforts, hire talent, and accelerate development of scalable quantum computing. This followed a $13.5 million Series A in June 2016 led by Playground Global and Redpoint to establish initial quantum computing technology development. Subsequent rounds included a Series D of $450 million in July 2021 led by BlackRock at a $3.2 billion valuation to develop and commercialize quantum technology, and later financings such as $750 million in March 2025 at $6 billion valuation, A$940 million in April 2024 from Australian and Queensland governments to build a Brisbane quantum site by 2027, and a $1 billion Series E in September 2025 led by BlackRock, Temasek, and Baillie Gifford at $7 billion valuation with participation from Nvidia’s NVentures and others to scale manufacturing, advance chip development, and deploy utility-scale systems in Brisbane and Chicago. Total funding exceeds $2.3 billion across multiple rounds. PsiQuantum focuses on fault-tolerant, million-qubit-scale quantum computers manufactured via GlobalFoundries, emphasizing error correction over raw qubit count, with partnerships like Nvidia for quantum-AI integration and software tools. The company aims for commercial viability by 2027-2028, positioning against competitors like Quantinuum ($10B valuation) and others in a sector with rising valuations and government support.
Jun 2016Series APlayground Global (lead); Redpoint (lead); The House Fund$14M-PsiQuantum, a quantum computing company built around photonic qubits, raised a US$13.5 million Series A in June 2016. The round was led by Playground Global and Redpoint, the Silicon Valley venture firms that backed the company at its start. The capital funded the first hires and early work on a fault-tolerant, silicon-photonics quantum computer, the approach the founders Jeremy O'Brien, Terry Rudolph, Peter Shadbolt and Mark Thompson had developed as academics in the United Kingdom. PsiQuantum was founded in 2016 and is based in Palo Alto, California. It went on to raise a US$50 million Series B in 2017, a US$150 million Series C in 2020, a US$450 million Series D in 2021 and a US$1 billion Series E in 2025 at a US$7 billion valuation, and it is building utility-scale machines in Brisbane and Chicago. Redpoint describes the Series A as its first partnership with the company, and the round marked the first institutional financing of what became one of the best-funded private quantum computing companies.

Who has invested in PsiQuantum?

25 investors have backed PsiQuantum across its funding rounds, including Temasek, BlackRock, Baillie Gifford, Founders Fund, M12 and Blackbird Ventures.

Lead investors include OGBC Group, Baillie Gifford, BlackRock, Temasek, Australian Government and 4 other investors.


PsiQuantum Investors

Investors in PsiQuantum by funding rounds participated
InvestorHQRoundsRoleFirst check
TemasekSingaporeSingapore3LeadJul 2021
Baillie GiffordUnited KingdomEdinburgh3LeadApr 2020
BlackRockUnited StatesNew York City, NY3LeadApr 2020
Blackbird VenturesAustraliaSydney2ParticipantJul 2021
NVenturesUnited StatesSanta Clara, CA2ParticipantSep 2025
Australian GovernmentAustraliaCanberra2LeadApr 2024
M12United StatesUnited States2ParticipantApr 2020
Founders FundUnited StatesSan Francisco, CA2LeadSep 2017
RedpointUnited StatesSan Francisco, CA1LeadJun 2016
Qatar Investment AuthorityQatarDoha1ParticipantSep 2025
The House FundUnited StatesBerkeley, CA1ParticipantJun 2016
Counterpoint GlobalUnited StatesNew York City, NY1ParticipantSep 2025
T. Rowe PriceUnited StatesBaltimore, MD1ParticipantSep 2025

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PsiQuantum Competitors

PsiQuantum competitors include listed companies like Iluvatar CoreX and Silicon Motion, and private ones like Photonic, Fractile, Etched and Lightmatter.

Public and private companies comparable to PsiQuantum
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
PhotonicCanadaVancouverPrivate--$2B-
FractileUnited KingdomUnited KingdomPrivate--$7.1B-
EtchedUnited StatesCupertino, CAPrivate--$10B-
LightmatterUnited StatesSan Francisco, CAPrivate$50M-$4.4B-
Iluvatar CoreXChinaChinaPublicly listed$155M($125M)$6.3B15.4x
Silicon MotionChinaChinaPublicly listed$886M$161M$7.1B4.1x
Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Shanghai Biren Technology$155M($2.5B)39.4x18.2x(2.5x)(22.7x)
Silicon Motion$886M$161M8.3x4.1x45.8x14.8x
Empyrean Technology$199M$23M34.9x29.2x306.4x209.9x
AUO$8.6B$1.2B1.0x1.0x7.2x10.9x
FormFactor$785M$97M8.2x6.4x66.8x21.4x
Jiangxi Redboard Technology$552M$138M12.5x-50.1x-
Sanan Optoelectronics$2.7B$590M2.8x2.7x12.9x10.8x
Shenzhen Fastprint$1.1B$113M7.7x6.1x73.5x43.6x

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Common questions about PsiQuantum

When was PsiQuantum founded?PsiQuantum was founded in 2016.
Where is PsiQuantum headquartered?PsiQuantum is headquartered in Palo Alto, CA, United States.
Is PsiQuantum publicly listed?No, PsiQuantum is a private, VC-backed company.
What is PsiQuantum's valuation?PsiQuantum was last valued at $7B in its Series E in September 2025.
How much funding has PsiQuantum raised?PsiQuantum has raised $2.3B across 8 funding rounds.
What was PsiQuantum's last funding round?PsiQuantum's last funding round was a undisclosed-stage round in January 2026, led by OGBC Group.
Who are PsiQuantum's investors?PsiQuantum's investors include Temasek, Baillie Gifford, BlackRock, Blackbird Ventures, NVentures, Australian Government, M12, Founders Fund, Redpoint, Qatar Investment Authority and 15 others.
Which companies are comparable to PsiQuantum?Companies comparable to PsiQuantum include Photonic, Fractile, Etched, Lightmatter, Iluvatar CoreX and Silicon Motion.

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