Silicon Quantum Computing Valuation, Funding & Investors

Silicon Quantum Computing is valued at $131M as of July 2023.

Last Silicon Quantum Computing valuation

$131M

Series A · Jul 2023

Last Silicon Quantum Computing funding round

$14M

Undisclosed stage · Mar 2026

Cumulative funding Silicon Quantum Computing raised

$113M

across 3 funding rounds

Key investors in Silicon Quantum Computing

  • CommBank
  • Telstra
  • University of New South Wales
  • Australian Government
  • National Reconstruction Fund Corporation
  • NSW Government

Silicon Quantum Computing Overview

About Silicon Quantum Computing

Silicon Quantum Computing (SQC) is a Sydney quantum computing company founded in 2017 to commercialise quantum computing technology developed at UNSW by Professor Michelle Simmons, its founder and chief executive. It builds quantum processors by placing phosphorus atoms in silicon with atomic precision, using only two types of atoms, and makes its chips in-house with one-week chip cycles. Its products on the market are Watermelon, a quantum feature generator for machine learning, and Quantum Twins, a quantum analogue simulator for materials design, offered through SQC Cloud or as on-premises hardware, with gate-based Chilli Series processors announced as coming soon. The company was founded with A$83 million from the Australian and NSW governments, UNSW, Telstra and the Commonwealth Bank, and closed an A$50.4 million Series A in July 2023. It reports more than 200 patents and patents pending and targets universal, fault-tolerant quantum computers by 2033.


Founded

2017

HQ

AustraliaSydney

Website

sqc.com

Status

Privately held

Customer focus

B2B

Revenue model

Product sales

Valuation

$131M (Jul 2023)

Silicon Quantum Computing Valuation

Silicon Quantum Computing is currently valued at $131M, based on its Series A in July 2023. Read the announcement ↗

The $34M round included University of New South Wales, Australian Government, Telstra and CommBank.

Silicon Quantum Computing valuation by funding round

Silicon Quantum Computing valuation by funding round
DateStageValuation
Jul 2023Series A$131M

Silicon Quantum Computing Funding History

Silicon Quantum Computing has raised a total of $113M across 3 funding rounds.

Silicon Quantum Computing's first fundraising round was a $66M seed round in August 2017. The most recent completed round was a $14M undisclosed-stage round in March 2026.

Silicon Quantum Computing funding rounds

Silicon Quantum Computing funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Mar 2026Undisclosed stageNational Reconstruction Fund Corporation (lead)$14M--
Jul 2023Series AUniversity of New South Wales; Australian Government; Telstra; CommBank$34M$131MSilicon Quantum Computing (SQC), founded by Michelle Simmons and based in Sydney, Australia, develops scalable quantum computers using silicon processors manufactured with atomic precision, aiming to create the world's first error-corrected logical qubit in silicon. This technology positions SQC as a potential central hardware manufacturing hub for the global quantum computing industry, offering advantages over multinational competitors. On July 24-25, 2023, SQC closed a Series A funding round raising A$50.4 million (approximately $34.1 million USD), falling short of an initial $130 million target but more than doubling its previous valuation from $82.8 million to a post-money valuation of $195.3 million at a share price of $1.75. The funds support SQC's milestone toward building the first logical qubit in silicon and advancing its unique atomic-scale fabrication capabilities. CEO Michelle Simmons highlighted the technology's global uniqueness, while chair Stephen Menzies emphasized progress in quantum computing development. This round brings SQC's total funding to around $99.51 million across two rounds. The investment reflects growing Australian VC interest in quantum tech, with over $127 million invested in the sector in 2023 to date.
Aug 2017SeedUniversity of New South Wales; Australian Government; NSW Government; Telstra; CommBank$66M-Silicon Quantum Computing (SQC), founded in 2017 by Professor Michelle Simmons, is a Sydney-based quantum computing company focused on building the world’s first scalable, error-corrected quantum computer using silicon-based processors manufactured at the atomic scale. The company emerged from research at UNSW's Centre of Excellence for Quantum Computation and Communication Technology (CQC2T) and achieved milestones like the world’s first integrated circuit at atomic scale in June 2022. The company operates from UNSW laboratories and emphasizes commercializing atomic-precision quantum processors over multinational competitors. In August 2017, SQC raised an $83 million seed round from investors including the Australian Commonwealth Government, NSW State Government, Commonwealth Bank of Australia (CommBank), and UNSW. This seed funding supported early technical development and operations. The post-money valuation following this round was $82.8 million, as referenced in the context of a subsequent 2023 Series A where the valuation more than doubled. In July 2023, SQC closed a $50.4 million Series A round at $1.75 per share, elevating the post-money valuation to $195.3 million—a 136% increase—led by the Commonwealth Government, CommBank, Telstra, and UNSW. The funds aim to advance toward creating the world's first logical qubit in silicon and position SQC as a global hardware manufacturing hub for quantum computing.

Who has invested in Silicon Quantum Computing?

6 investors have backed Silicon Quantum Computing across its funding rounds, including CommBank, Telstra, University of New South Wales, Australian Government, National Reconstruction Fund Corporation and NSW Government.

Lead investors include National Reconstruction Fund Corporation.


Silicon Quantum Computing Investors

Investors in Silicon Quantum Computing by funding rounds participated
InvestorHQRoundsRoleFirst check
University of New South WalesAustraliaSydney2ParticipantAug 2017
Australian GovernmentAustraliaCanberra2ParticipantAug 2017
TelstraAustraliaMelbourne2ParticipantAug 2017
CommBankAustraliaSydney2ParticipantAug 2017

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Silicon Quantum Computing Competitors

Silicon Quantum Computing competitors include listed companies like EnSilica, Duksan Techopia, D&O Green Technologies and Canaan, and private ones like Ming Gallium Semiconductor and Chuangxin Microelectronics.

Public and private companies comparable to Silicon Quantum Computing
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Ming Gallium SemiconductorChinaBeijingPrivate--$131M-
EnSilicaUnited KingdomUnited KingdomPublicly listed$37M$8M$129M3.2x
Duksan TechopiaSouth KoreaSouth KoreaPublicly listed$83M($37M)$133M-
D&O Green TechnologiesMalaysiaMalaysiaPublicly listed$244M($43M)$125M1.0x
CanaanUnited StatesUnited StatesPublicly listed$530M($158M)$136M0.7x
Chuangxin MicroelectronicsChinaShenzhenPrivate--$123M-

Silicon Quantum Computing Public Comps

Silicon Quantum Computing is still privately-owned, but its public comps include EnSilica, Duksan Techopia, Aeluma, D&O Green Technologies, RIR Power Electronics, Canaan, Riber, Atomera, GSI Technology and QuickLogic.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
EnSilica$37M$8M3.4x3.2x16.2x16.6x
Duksan Techopia$83M($37M)2.6x-(5.9x)-
Aeluma$4M($10M)18.2x20.0x(8.3x)(10.7x)
D&O Green Technologies$244M($43M)1.0x1.0x(5.8x)26.5x
RIR Power Electronics$10M$1M12.9x-88.4x-
Canaan$530M($158M)0.2x0.7x(0.8x)(0.7x)
Riber$45M$9M3.1x3.1x15.1x17.5x
Atomera$65K($20M)1319.1x475.3x(4.3x)-

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Common questions about Silicon Quantum Computing

When was Silicon Quantum Computing founded?Silicon Quantum Computing was founded in 2017.
Where is Silicon Quantum Computing headquartered?Silicon Quantum Computing is headquartered in Sydney, Australia.
Is Silicon Quantum Computing publicly listed?No, Silicon Quantum Computing is a private, VC-backed company.
What is Silicon Quantum Computing's valuation?Silicon Quantum Computing was last valued at $131M in its Series A in July 2023.
How much funding has Silicon Quantum Computing raised?Silicon Quantum Computing has raised $113M across 3 funding rounds.
What was Silicon Quantum Computing's last funding round?Silicon Quantum Computing's last funding round was a $14M undisclosed-stage round in March 2026, led by National Reconstruction Fund Corporation.
Who are Silicon Quantum Computing's investors?Silicon Quantum Computing's investors include University of New South Wales, Australian Government, Telstra, CommBank, NSW Government and National Reconstruction Fund Corporation.
Which companies are comparable to Silicon Quantum Computing?Companies comparable to Silicon Quantum Computing include Ming Gallium Semiconductor, EnSilica, Duksan Techopia, D&O Green Technologies, Canaan and Chuangxin Microelectronics.

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