What Quantum Source does

Quantum Source Labs Ltd. is a pre-revenue Israeli quantum computing company developing fault-tolerant photonic quantum computers based on a hybrid photon-atom architecture. Founded in 2022 by Weizmann Institute alumni and serial chip entrepreneurs, the company is headquartered in Ness Ziona, Israel and employs approximately 70 people. The company has raised $77 million total across a $15M seed round (July 2022), a $12M seed extension (April 2023), and a $50M Series A (September 2024), with Eclipse leading the Series A and Dell Technologies Capital leading the seed extension.

The company's core technology couples single trapped rubidium atoms on silicon-nitride photonic chips with single photons, enabling deterministic atom-photon entangling quantum gates. This architecture addresses the primary photonic bottleneck of probabilistic entanglement, allowing construction of 3D cluster states for quantum error correction and targeting million-qubit systems in server-sized form factors. The product portfolio centers on the ORIGIN core engine (unveiled September 2025 at Quantum World Congress), alongside QS-ORBIT and QS-LINK product modules. Demonstrated technical milestones include single-atom trapping on photonic chips with approximately 30% trapping probability per loading pulse and atom-photon cooperativity of 1.57 ± 0.36, backed by five peer-reviewed publications in PRX Quantum, Physical Review A, Science, Nature Photonics, and Physical Review Letters. The company's scientific leadership is anchored by Chief Scientist Prof. Barak Dayan from the Weizmann Institute, with former Israeli Prime Minister Naftali Bennett serving on the board.

Quantum Source targets government entities, enterprise businesses, and academic/research institutions through direct enterprise sales of on-premises quantum computing systems. The company does not yet have publicly disclosed revenue, and pricing is custom and quote-based for institutional customers; the revenue model is anticipated hardware sales of full-stack quantum computing systems. Marketing is content-driven, centered on technical white papers, peer-reviewed publications, and participation in major quantum industry conferences. The company maintains GDPR compliance for data handling and operates from a single Israeli headquarters.

Name

Quantum Source

Legal name

Quantum Source Labs Ltd.

Website

https://qs-labs.com

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

11–50 employees

Short description

Quantum Source Labs Ltd. is an Israel-based pre-revenue quantum computing company developing fault-tolerant photonic quantum computers using a hybrid atom-photon architecture, targeting governments, enterprises, and research institutions seeking practical, scalable quantum systems.

Ownership category

akta.pro rank

Product category

Quantum Computing Hardware

NAICS

Semiconductor and Related Device Manufacturing (334413)

SIC

Electronic Computers (3571)

akta.pro primary industry

Photonic (Optical) QPU Systems (HDAGAAAD)

akta.pro secondary industries

Fault-Tolerant Gate Sets & Logical Operations (transversal, lattice surgery, magic-state) (HDAGAJAB), Fault-Tolerant Architectures & Resource Estimation (overhead, layout, scheduling) (HDAGAJAF), Quantum Error Correction, Fault Tolerance & Quantum Information Theory (HDAGAMAD)

Keywords

• Photonic quantum computing
• Quantum hardware systems
• Atom-photon gates
• Fault-tolerant quantum
• Quantum error correction

Headquarters

HQ city

Ness Ziona

HQ country

Israel

HQ region

Middle East

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Enterprise Quantum Computing Systems: Pre-revenue company developing photonic quantum computing systems for governments, enterprises, and research institutions. Revenue model likely based on sale or licensing of quantum computing hardware and associated software/systems to high-value institutional customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Quantum Source develops scalable, fault-tolerant photonic quantum computers based on a hybrid photon-atom architecture that traps single rubidium atoms on silicon-nitride photonic chips. The company sells photonic quantum computing hardware modules (QS-ORBIT and QS-LINK) and the ORIGIN core engine, targeting enterprise, government, and research customers that need million-qubit systems in compact, server-sized form factors. Deterministic atom-photon entangling gates replace probabilistic entanglement, reducing the overhead required for quantum error correction.

Product overview

Quantum Source is developing practical photonic quantum computers based on a hybrid atom-photon architecture. The company's product portfolio centers on two named product modules—QS-ORBIT and QS-LINK—which work together as components of their scalable photonic quantum computing platform. The core technology is embodied in ORIGIN, a novel core engine that couples single atoms trapped on photonic chips with photons to enable deterministic generation of quantum resources. This architecture differs from probabilistic approaches by making resource-state generation deterministic rather than probabilistic. The company also offers a technical white paper (Qubits to Logic Report 2025) and maintains a resources library including papers, blogs, and videos. Quantum Source's approach aims to achieve fault-tolerant quantum computers with millions of qubits in a server-sized form factor, contrasting with competitor approaches that require factory-sized facilities.

Differentiator

Problem solved

Functional benefit

Brands

• QS-ORBIT: Product mentioned on Quantum Source's products page.
• QS-LINK

Products and services

• QS-ORBIT A photonic quantum computing product module referenced in Quantum Source's product navigation, designed as part of the scalable, fault-tolerant photonic quantum computer architecture targeting enterprise, government, and research customers.
• QS-LINK A photonic quantum computing product module referenced in Quantum Source's product navigation, functioning as part of the hybrid atom-photon platform for quantum computing.
• ORIGIN Core Engine A novel core engine for scalable, fault-tolerant photonic quantum computers that couples single photons with single atoms trapped on photonic chips to enable deterministic resource-state generation, targeting million-qubit systems in a server-sized form factor for governments, enterprises, and research institutions.

Quantifiable outcome

• 30% trapping probability per loading pulse for single atoms on photonic chips
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered major and core.

• The Quantum InsidermajorStrategic or Co-development Partner · 17 September 2025Collaborative partnership producing the 'Qubits to Logic Report 2025: Engineering Fault-Tolerant Quantum Systems' white paper. The report provides comparative analysis of qubit modalities and engineering pathways, positioning Quantum Source's technology approach.
• Naftali BennettmajorOthers · 15 May 2023Former Israeli Prime Minister joined the board of directors in May 2023, providing strategic guidance and high-level connections to government and policy circles.
• Weizmann Institute of SciencecoreStrategic or Co-development Partner · 1 January 2017Foundational research partnership with Chief Scientist Prof. Barak Dayan from Weizmann Institute. Joint research has produced multiple scientific publications and demonstrated key technologies including single-atom trapping on photonic chips. The company was founded by Weizmann Institute alumni.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• PsiQuantum: PsiQuantum is the most direct competitor, also pursuing million-qubit photonic quantum computing but using an all-photonic (probabilistic entanglement) approach with factory-scale infrastructure. Quantum Source is positioned as the deterministic, room-temperature, server-sized alternative to PsiQuantum's platform.
• Xanadu Quantum Technologies: Xanadu builds photonic quantum computers using squeezed light and continuous-variable architectures and offers cloud access via Borealis. Like QS, Xanadu targets scalable photonic fault-tolerant computing but uses a fundamentally different photonic modality without the atom-mediated gates that differentiate QS.

Emerging players

• Atom Computing: Atom Computing builds neutral-atom quantum computers using optical tweezer arrays, an approach that overlaps with QS's atom-based primitives but is targeted at a different qubit modality. Both companies pursue large-scale fault-tolerant quantum computing with atom-based hardware.
• QuEra Computing: QuEra develops neutral-atom quantum computers based on Rydberg atom arrays, sharing the atom-based hardware philosophy with QS but using a different trapping and gate strategy. Comparable in scale (Series A/B-stage) and target customers (enterprises and governments).
• Pasqal: Pasqal builds neutral-atom quantum processors using arrays of Rydberg atoms for analog and digital quantum computing. Overlaps with QS in atom-based architectures and the pursuit of fault-tolerant scaling, but uses a different control paradigm.
• ORCA Computing: ORCA Computing builds photonic quantum computing systems using quantum memory based on room-temperature atomic ensembles, sharing thematic overlap with QS's photon-atom approach but at a smaller scale and with a different control architecture.

Broad incumbents

• Quantinuum: Quantinuum is the trapped-ion quantum computing leader (H-Series and Helios), pursuing fault-tolerant scaling with a different qubit modality. Relevant as a broad incumbent competing for the same government and enterprise quantum budgets.
• IonQ: IonQ is a publicly traded full-stack trapped-ion quantum computing company pursuing fault-tolerant systems and enterprise/cloud access. Comparable as a broad incumbent in fault-tolerant quantum targeting government and enterprise customers.
• IBM Quantum: IBM Quantum is the largest incumbent in superconducting quantum computing, with a published fault-tolerant roadmap (Heron, Condor, Kookaburra, Flamingo) and a substantial installed base. Competes with QS for the same enterprise and government quantum budgets.
• Google Quantum AI: Google Quantum AI pursues superconducting fault-tolerant quantum computing (Willow chip) with published error-correction milestones. Competes with QS for the same strategic national and enterprise customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/QS_Labs

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds3 records

Investors8 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Quantum Source