Alice & Bob
Alice & Bob is a quantum computing company that develops fault-tolerant quantum computers using its proprietary cat qubit architecture.
- Company typePrivate
- Founded2020
- HeadquartersParis, France
- Headcount251–500
- GTM typeB2B
- OfferingHardware or Manufacturing
What Alice & Bob does
Alice & Bob is a quantum computing company focused on developing fault-tolerant quantum computers using its proprietary cat qubit architecture, which is designed to reduce errors at the hardware level. The company develops both hardware and software for quantum computing systems and aims to improve the scalability and reliability of quantum processors. Its technology is based on superconducting circuits and built-in error correction methods intended to reduce the number of physical qubits required for large-scale quantum computation. Alice & Bob also collaborate with research institutions, government programs, and industry partners on quantum computing development and benchmarking initiatives. The company’s work is centered on advancing practical quantum computing systems for high-performance computing and scientific applications.
Alice & Bob firmographics
Firmographics- Name
- Alice & Bob
- Legal name
- Alice & Bob SAS
- Website
- https://alice-bob.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Alice & Bob is a quantum computing company that develops fault-tolerant quantum computers using its proprietary cat qubit architecture.
- Ownership category
- akta.pro rank
Alice & Bob industry classification
Industry- Product category
- Quantum Computing Hardware
- NAICS
- Semiconductor and Related Device Manufacturing (334413)
- SIC
- Semiconductors & Related Devices (3674)
- akta.pro primary industry
- Superconducting QPU Systems (HDAGAAAA)
- akta.pro secondary industries
- Fault-Tolerant Gate Sets & Logical Operations (transversal, lattice surgery, magic-state) (HDAGAJAB), Quantum Materials, Qubits & Device Physics Research (HDAGAMAA), Quantum Cloud Infrastructure & QPU Hosting (HDAGAIAA), Quantum Control Software & Pulse-Level Programming (HDAGACAJ)
Keywords
Where Alice & Bob is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices3 records
Markets served
Alice & Bob business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales
Revenue model
- Quantum Computing Hardware Sales: Sale of Helium Quantum System - complete on-premise quantum computing platforms for research institutions and HPC centers. System sold with research partnership and co-design collaboration model.
- Cloud/Quantum Computing Services (Felis Cloud): Quantum computing calculation capacities via cloud access through API keys. Backends include both emulator on classical computers and actual quantum computers owned and operated by Alice & Bob. Billed monthly with 30-day payment terms.
- Software Platform Access: Access Plans determine which backends customers can access, number of Jobs in given period, pricing scheme. Custom Access Plans available upon request. Sale through direct negotiation or Third-Party Partners.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Custom Enterprise Agreements |
| Subscription | Monthly | Third-Party Partner Channel |
Go-to-market motion4 records
Distribution channels5 records
Marketing channels6 records
Alice & Bob product offering
Product offeringCore offering
Alice & Bob designs, manufactures, and sells fault-tolerant quantum computing systems based on its proprietary superconducting cat qubit architecture, which suppresses bit-flip errors at the hardware level. Its primary product is the Helium Quantum System — an on-premise 18-cat-qubit platform encoding the company's first logical qubit — sold as a research partnership with co-design collaboration to national labs and HPC centers. The company also offers Felis Cloud, a subscription-based cloud quantum computing service providing API access (via Qiskit and web API) to its quantum emulators and physical backends.
Product overview
Alice & Bob is a fault-tolerant quantum computing company developing a complete quantum computing portfolio anchored by its proprietary superconducting cat qubit architecture, which suppresses bit-flip errors at the hardware level and can reduce hardware requirements by up to 200 times compared to competing superconducting approaches. The core product is the Helium Quantum System, a complete on-premise quantum computing platform encoding the company's first logical qubit using 18 cat-qubits, accompanied by the Felis Cloud service (providing API and emulator access), the Starboard monitoring interface, and the Felis software framework for HPC integration. The company's error correction portfolio includes Elevator Codes (10,000x logical error rate reduction at 3x qubit overhead), Tiger Codes (multimode bosonic codes for non-Clifford gate construction), and LDPC-cat codes (200x qubit overhead reduction for RSA-2048). Alice & Bob's five-generational roadmap progresses through Boson, Helium (current), Lithium, and Beryllium, culminating in Graphene — targeting 100 high-fidelity logical qubits by 2030. The company serves research partners, national labs, and HPC centers through co-design research collaborations.
Differentiator
Problem solved
Functional benefit
Brands
- Helium Quantum System: The company's first commercial cat-qubit quantum computing platform for on-premise deployment, encoding a logical qubit using 18 physical cat qubits.
- Starboard
- Felis
- Elevator Codes
- Boson
Products and services
- Helium Quantum System Alice & Bob's first complete quantum computing platform for on-premise deployment, encoding the company's first logical qubit using 18 cat qubits with bit-flip protection exceeding one hour. Designed as the world's first physical cat-qubit laboratory open to third-party research organizations, it supports integration with common HPC schedulers and third-party quantum programming frameworks. Target customers are national labs, HPC centers, and academic research institutions.
- Felis Cloud Alice & Bob's cloud quantum computing service providing access to quantum backends (both emulators on classical computers and actual quantum computers owned and operated by Alice & Bob) via API and web interface. Customers submit quantum circuit Jobs through open-source frameworks like Qiskit or through a REST/web API, with access controlled by API keys. Billed monthly with custom Access Plans available.
- Starboard Monitoring Interface A custom monitoring interface for the Helium Quantum System, providing real-time observation and control of the quantum computing platform's performance metrics and operational status. Part of the complete software stack accompanying Helium.
- Felis Software Framework A software framework released alongside the Helium Quantum System that supports integration with common HPC schedulers and third-party quantum programming frameworks, enabling developers to write and execute quantum circuits on Alice & Bob's hardware.
Quantifiable outcome
- Bit-flip times exceeding one hour (September 2025), compared to 7-minute record in 2024 and target of 13 minutes for 2030 Graphene device
- +5 more outcomes
Companies that use Alice & Bob
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles3 records
Alice & Bob technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability2 records
Feature7 records
Alice & Bob partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and supporting.
- Bull (Atos)coreExpanded MoU covering four areas: research and development, product innovation, software development, and commercial development. Bull's manufacturing facility in Angers central to producing hybrid quantum computing infrastructure. Bull selected as software integrator for first commercial quantum computer at CEA's TGCC.
- NVIDIA (Technical)coreTechnical collaboration including CUDA-Q integration for GPU-accelerated QEC decoding, NVQLink open architecture for GPU-QPU integration, and cuQuantum library support. Collaboration since 2024.
- GENCIcoreFrance's national HPC agency purchased 18-cat-qubit quantum computer for deployment at Très Grand Centre de Calcul. Europe's first fault-tolerant quantum computing system designed to be hosted on-premises. Part of France's National Quantum Strategy.
- CEA (TGCC)coreCEA's Très Grand Centre de Calcul hosting the commercial quantum computer deployment. System to be integrated with GENCI's Joliot-Curie supercomputer with expected user access in 2027.
- Los Alamos National LaboratorycoreCollaboration on ARPA-E $3.9M project to develop fault-tolerant quantum algorithms for discovering rare-earth-free permanent magnets. Three-year research project combining classical and quantum computing techniques.
- GE VernovacoreGE Vernova's Advanced Research accelerator collaborating on rare-earth-free permanent magnet project for electric motors and turbines. Project aims to accelerate development of sustainable magnets for energy transition technologies.
- Professor Emanuel GullsupportingAcademic partner providing expertise in quantum algorithms and computational chemistry for the ARPA-E rare-earth-free magnet project.
- Horizon Quantum ComputingsupportingStrategic collaboration integrating Alice & Bob's quantum emulators with Horizon Quantum's Triple Alpha development environment. Partnership creates full-stack solution combining hardware and software technologies for fault-tolerant quantum computing.
- TERATECsupportingJoined TERATEC consortium of over 80 industry, research, and academic members advancing HPC in France. Contributing expertise in quantum-HPC integration to strengthen European research in digital technologies.
Scale indicators16 records
Recent moves8 records
Expansion highlights8 records
Alice & Bob competitors and assessment
Company assessmentDirect peers
- IonQ: IonQ builds trapped-ion quantum computers sold via cloud and direct enterprise contracts. It is a direct competitor across all customer segments Alice & Bob targets (national labs, HPC, enterprise) and competes on the same fault-tolerant roadmap.
- IBM Quantum: IBM Quantum is the most established superconducting QPU vendor, operating the IBM Quantum Network and offering cloud access to its superconducting processors. It is the most direct competitor to Alice & Bob's superconducting approach and competing vision for fault-tolerant quantum computing.
- Google Quantum AI: Google Quantum AI develops superconducting qubit processors with published milestones in quantum error correction and logical qubit demonstrations. It is a direct competitor pursuing universal fault-tolerant quantum computing on a superconducting platform.
- Rigetti Computing: Rigetti builds superconducting quantum processors and offers cloud access via its QCS platform. It is a direct competitor in the superconducting QPU and quantum cloud services category and competes for similar research and government customers.
- Quantinuum: Quantinuum operates the H-series trapped-ion quantum computers and is pursuing fault-tolerant quantum computing via the Helium-class architecture. It is a direct competitor in the broader fault-tolerant quantum computing pursuit, with a different modality but identical end goal.
- Pasqal: Pasqal is a French neutral-atom quantum computing company and fellow PROQCIMA program recipient. It is a direct competitor for French national quantum funding and EMEA research-customer contracts, with comparable headcount and funding trajectory.
- Quandela: Quandela is a French photonic quantum computing startup and fellow PROQCIMA program participant. It is a direct competitor for French and European quantum funding, with overlapping customer base in national labs and HPC integrators.
- Quobly: Quobly is a French quantum computing startup developing silicon spin qubits and is a fellow PROQCIMA program recipient. It is a direct competitor for French quantum strategy resources and shares the same French national customer base.
Broad incumbents
- PsiQuantum: PsiQuantum pursues fault-tolerant quantum computing using photonic qubits and has raised significantly more capital than Alice & Bob. It is a broader incumbent in the FTQC pursuit with a much larger balance sheet and industrial-scale manufacturing focus.
- D-Wave Quantum: D-Wave is the longest-operating quantum computing company and offers both quantum annealing and gate-based superconducting systems commercially. It is a broader incumbent that has been shipping commercial quantum systems longer than any peer, providing a reference point for Alice & Bob's commercial go-to-market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Alice & Bob social profiles
Digital presenceAlice & Bob financial estimates
Financial estimateRevenue estimate
Valuation estimate
Alice & Bob leadership team
Management profileNumber of profiles
Profiles4 records
Alice & Bob funding detail
Funding detailFunding overview
Funding rounds10 records
Investors14 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Alice & Bob M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Alice & Bob
What does Alice & Bob do?
Alice & Bob designs, manufactures, and sells fault-tolerant quantum computing systems based on its proprietary superconducting cat qubit architecture, which suppresses bit-flip errors at the hardware level. Its primary product is the Helium Quantum System — an on-premise 18-cat-qubit platform encoding the company's first logical qubit — sold as a research partnership with co-design collaboration to national labs and HPC centers. The company also offers Felis Cloud, a subscription-based cloud quantum computing service providing API access (via Qiskit and web API) to its quantum emulators and physical backends.
Is Alice & Bob a public or private company?
Alice & Bob is a private company. It is classified as venture growth investor backed and is currently operating.
When was Alice & Bob founded?
Alice & Bob was founded in 2020. It employs 251 to 500 people.
Where is Alice & Bob based?
Alice & Bob is headquartered in Paris, France, in the Europe region.
How does Alice & Bob make money?
Three revenue lines are on record. Quantum Computing Hardware Sales are the primary driver. The others are cloud/Quantum Computing Services (Felis Cloud) and software Platform Access.
Who are Alice & Bob's main competitors?
Direct peers on record are IonQ, IBM Quantum, Google Quantum AI, Rigetti Computing, Quantinuum, Pasqal, Quandela and Quobly. Broad incumbents are PsiQuantum and D-Wave Quantum.
Does Alice & Bob have an API?
Yes. Alice & Bob provides a cloud quantum computing service accessed via API. Customers can send Jobs (quantum circuit execution requests) through major open-source quantum computing frameworks like Qiskit, or through a web API. Access is controlled via API keys granted to Authorized Users, with an unlimited but reasonable number of API keys permitted per Customer. Developer documentation is at www.alice-bob.com.
What industry is Alice & Bob in?
Alice & Bob's product category is Quantum Computing Hardware. Its primary akta.pro industry code is HDAGAAAA, Superconducting QPU Systems, with a secondary code of HDAGAJAB, Fault-Tolerant Gate Sets & Logical Operations (transversal, lattice surgery, magic-state). Its NAICS code is 334413 and its SIC code is 3674.