Riverlane
Riverlane is a Cambridge, UK-based quantum computing company that builds real-time quantum error correction hardware (Deltaflow), open-source QEC software (Deltakit), and a standardised interface (QECi), serving over 60% of the world's quantum computer manufacturers, control-system vendors, and national laboratories.
- Company typePrivate
- Founded2016
- HeadquartersCambridge, United Kingdom
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Riverlane does
Riverlane is a Cambridge, UK-based quantum computing company founded in 2016 by Steve Brierley that builds the quantum error correction (QEC) infrastructure required to scale quantum computers from noisy experimental devices to utility-scale systems. Its core product, Deltaflow, is an FPGA-based real-time QEC system that ingests syndrome data from quantum processors, runs Riverlane's proprietary Local Clustering Decoder, and issues corrections in under a microsecond per round — achieving a reported mean latency of 16.32 μs versus Google's published 63 μs, and reducing physical qubit requirements by up to 4x under leakage-dominated noise. The Deltakit open-source SDK and Textbook (launched September 2025) and the QECi standardised interface specification (March 2025) extend the platform upstream to developers and across control-system vendors, with QECIPHY released as open-source on GitHub. The technology works across superconducting, neutral atom, trapped-ion, and silicon-spin qubit modalities.
Riverlane's go-to-market is driven by deep technical partnerships rather than traditional field sales: Deltaflow systems are integrated directly into partner control stacks and QPUs, with the company claiming partnerships with over 60% of the world's quantum computer manufacturers — including Rigetti, OQC, IQM, Alice & Bob, Pasqal, Oxford Ionics, Diraq, and Inflection — alongside control-system vendors Qblox, Quantum Machines, and Zurich Instruments, national laboratories ORNL, Fermilab, Berkeley Lab, and MIT Lincoln, and end-user enterprise partners such as Rolls-Royce (CATALYST project with Xanadu) and the Quantum Scaling Alliance with HPE. Revenue derives from a mix of one-time Deltaflow hardware licences, QEC integration professional services, premium Deltakit cloud decoder subscriptions, and government research grants (notably a £2.1M European Innovation Council Transition grant). The company has raised over $120 million in private funding across a £15M Series B (April 2023, led by Molten Ventures), an $85M Series C (2024), and various earlier rounds and grants, employs over 180 people across Cambridge, Boston, and Delft, and is led by Steve Brierley (CEO/Founder) with a CFO and senior commercial leadership team recruited to scale operations.
Riverlane firmographics
Firmographics- Name
- Riverlane
- Legal name
- Riverlane Ltd.
- Website
- https://riverlane.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Riverlane is a Cambridge, UK-based quantum computing company that builds real-time quantum error correction hardware (Deltaflow), open-source QEC software (Deltakit), and a standardised interface (QECi), serving over 60% of the world's quantum computer manufacturers, control-system vendors, and national laboratories.
- Ownership category
- akta.pro rank
Riverlane industry classification
Industry- Product category
- Quantum Error Correction Technology
- NAICS
- Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825)
- akta.pro primary industry
- Decoding Algorithms & Real-Time Decoders (MWPM, neural, FPGA/ASIC decoders) (HDAGAJAD)
- akta.pro secondary industries
- Quantum Error Correction, Fault Tolerance & Quantum Information Theory (HDAGAMAD), Fault-Tolerant Operating Systems & Runtime Orchestration (syndrome pipeline, scheduling) (HDAGAJAL), QEC-Aware Control, Calibration & Feedback (active reset, adaptive control) (HDAGAJAG), QEC Verification, Validation & Benchmarking (logical RB, threshold tests, cycle benchmarking) (HDAGAJAJ), QCaaS Platforms & Developer Portals (HDAGAIAB), Hybrid Runtime Orchestration & Workflow Management (HDAGANAA)
Keywords
Where Riverlane is headquartered
LocationHeadquarters
- HQ city
- Cambridge
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
Riverlane business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Deltaflow QEC Systems: Sale/license of Deltaflow real-time QEC hardware systems (FPGA-based) to quantum computing manufacturers and national labs. Systems are integrated with partner control hardware and quantum processors.
- Deltakit Software Platform: Open-source Deltakit SDK with premium cloud services offering proprietary decoders and additional error-correcting codes. Community-tier is free; commercial cloud services likely subscription-based.
- QEC Consulting and Integration Services: Technical partnerships and consulting for QEC integration projects with hardware partners. Includes collaborative development projects like DECIDE (with OQC) and HERMES (with Rigetti).
- Government Research Grants: European Innovation Council (EIC) Transition grants and other government funding for QEC research and development projects.
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Riverlane product offering
Product offeringCore offering
Riverlane develops and sells quantum error correction (QEC) technology that enables quantum computers to correct errors faster than they accumulate. Its flagship product Deltaflow is an FPGA-based real-time QEC hardware system that processes terabytes of quantum syndrome data per second and integrates with partner quantum control stacks. The company also offers Deltakit, an open-source QEC software development kit and learning platform, and QECi, a standardized interface specification for QEC-to-control-system communication.
Product overview
Riverlane offers an integrated product portfolio for quantum error correction (QEC), the foundational technology required for utility-scale quantum computing. The core products are Deltaflow (real-time QEC hardware system on FPGA) and Deltakit (open-source SDK and learning platform), which together provide the complete QEC stack from offline experimentation to real-time on-hardware error correction. QECi provides a standardized interface enabling interoperability between Deltaflow and third-party quantum control systems. The products progress through a defined roadmap from MegaQuOp (one million reliable operations) through GigaQuOp to TeraQuOp (one trillion reliable operations from 2033), addressing quantum computing's central challenge of correcting billions of errors in real-time.
Differentiator
Problem solved
Functional benefit
Brands
- Deltaflow: Real-time quantum error correction (QEC) system for utility-scale quantum computing. An FPGA-based QEC system integrating proprietary hardware decoder with high-throughput data routing and real-time processing logic.
- Deltakit
Products and services
- Deltaflow Riverlane's flagship real-time quantum error correction (QEC) system, implemented on FPGA-based hardware. Deltaflow encodes many physical qubits into logical qubits, processes terabytes of quantum syndrome data per second in real-time, and identifies and corrects errors faster than they accumulate. Sold to quantum computing manufacturers and national labs for integration with their control hardware and quantum processors.
- Deltakit Open-source software development kit (SDK) and learning platform for quantum error correction. Deltakit enables quantum developers to design, execute and benchmark QEC schemes for all quantum computer architectures. Includes circuit generation, noise simulation, error decoding, data analysis tools, and an interactive Deltakit Textbook for learning QEC concepts. Offers freemium cloud services with proprietary decoders and additional error-correcting codes.
- QECi Quantum Error Correction interface specification and physical layer implementation (QECIPHY). A standard communication protocol between quantum control systems and QEC stacks that defines data formats, runtime states, and parameters for QEC messages. QECi enables independent upgrades of control systems and QEC subsystems without compatibility issues, and supports MegaQuOp-scale data transfer demands.
Quantifiable outcome
- 4x reduction in physical qubit requirements for MegaQuOp computations on superconducting qubits with leakage-dominated errors
- +5 more outcomes
Companies that use Riverlane
Customer profileNamed customers6 records
Segments4 records
Ideal customer profiles4 records
Riverlane technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability7 records
Feature5 records
Riverlane partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core and strategic.
- RigetticoreCollaborative research published in Nature Communications demonstrating world's first low-latency QEC experiment on superconducting qubit hardware. Deltaflow handles decoding backlog problem while remaining scalable with high accuracy. HERMES project addresses streaming decoding challenge.
- Hewlett Packard Enterprise (HPE)strategicExpanded collaborations with eight quantum computing companies including Riverlane to integrate HPC with quantum computing systems for scalable hybrid classical-quantum applications. Full-stack hybrid quantum supercomputing platform development.
- QbloxcoreStrategic collaboration to deliver integrated quantum error correction solution combining Riverlane's Deltaflow with Qblox's high-performance control hardware. Enables real-time QEC for fault-tolerant quantum computing with sub-microsecond feedback, supporting up to 300 physical qubits and 5 logical qubits.
- Quantum MachinescoreOpen Acceleration Stack collaboration with NVIDIA, AMD, and Riverlane for hybrid quantum-classical integration. Deltaflow 2 demonstrated with Quantum Machines' OPX-1000 control system running streaming quantum memory with low-latency decoding.
- DARPAstrategicRiverlane joined DARPA's Quantum Benchmarking Initiative with key role in three projects. Contributing to defining benchmarks and metrics for quantum system performance assessment.
- Quantum Scaling AlliancestrategicFormation of Quantum Scaling Alliance with HPE, 1QBit, Applied Materials, Qolab, Quantum Machines, Synopsys, and University of Wisconsin. Led by Nobel Laureate John Martinis, aims to design cost-effective quantum supercomputer leveraging HPC and semiconductor ecosystem.
- XanaducoreCATALYST project with Rolls-Royce: collaborative quantum computing project for modeling jet engine airflow. Reduced simulation runtimes from weeks to under an hour using Xanadu's PennyLane software with Riverlane's quantum algorithms.
- Rolls-RoycecoreCATALYST project: hybrid quantum-classical framework for modeling airflow in jet engines, demonstrating quantum computing applications for aerospace design. Supported by UK and Canadian government funding.
- Oxford Quantum Circuits (OQC)coreDECIDE project demonstrating real-time QEC integration with OQC's dual-rail qubits. Successfully deployed OQC's Qblox control system connected to Deltaflow and integrated with HPC cluster. Showcased erasure-aware decoding capabilities.
- IQM Quantum ComputerscoreResearch collaboration and QEC workshop at ORNL with IQM. Integration of Deltaflow with IQM's superconducting quantum hardware for end-to-end QEC experiments. IQM participates in DARPA's Quantum Benchmarking Initiative with Riverlane.
- Oak Ridge National Laboratory (ORNL)coreQEC workshop hosted at ORNL demonstrating end-to-end QEC experiments with IQM hardware. ORNL's Quantum Science Center advancing hybrid quantum-HPC integration.
- National Quantum Computing Centre (NQCC)coreUK's NQCC partnership for QEC advancement. Collaboration on 36-qubit system with Rigetti to advance error correction capabilities.
Scale indicators8 records
Recent moves7 records
Expansion highlights8 records
Riverlane competitors and assessment
Company assessmentDirect peers
- Q-CTRL: Q-CTRL builds quantum error suppression and error correction software for quantum hardware, competing with Riverlane's Deltakit SDK in the developer-facing QEC tooling layer for utility-scale quantum.
- Quantum Machines: Quantum Machines supplies quantum control systems (OPX series) and collaborates with Riverlane via the Open Acceleration Stack. It is a direct comparable in the quantum-control and orchestration layer that wraps around QEC hardware.
- Qblox: Qblox is a core strategic partner of Riverlane, providing high-performance qubit control hardware that Deltaflow integrates with. It is comparable as a player in the FPGA-based quantum control hardware layer adjacent to Riverlane's decoder stack.
Broad incumbents
- IBM Quantum: IBM Quantum is building a vertically-integrated quantum stack including in-house QEC capabilities (qLDPC, codes, decoders). It is the most significant broad incumbent that could in-source the layer Riverlane targets.
- Google Quantum AI: Google has published landmark QEC results (Willow chip) and develops decoders and control systems in-house, providing both the benchmark Riverlane competes against and the vertically-integrated alternative customers may choose.
- Quantinuum: Quantinuum (trapped-ion) develops its own QEC-aware control stack. Comparable to Riverlane as a vertically-integrated quantum platform pursuing utility-scale operations through error correction.
Emerging players
- Classiq: Classiq provides quantum software development platforms, sitting in a similar horizontal layer to Riverlane's Deltakit but focused on algorithm compilation rather than QEC. Comparable as a developer-tools company serving the quantum ecosystem.
- Strangeworks: Strangeworks is a quantum software platform offering developer tools and access. Comparable to Deltakit in serving the developer and enterprise adoption layer around quantum computing.
- Zapata AI: Zapata AI focuses on quantum/AI hybrid algorithms and software, comparable to Riverlane's hybrid quantum-classical ambitions (Open Acceleration Stack, CATALYST) at the application software layer.
- QuEra Computing: QuEra is a neutral-atom quantum hardware vendor that Riverlane serves as a customer/partner. Comparable as a complementary quantum ecosystem player pursuing utility-scale systems through error correction.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat7 records
Key risks5 records
Key highlights7 records
Customer concentration
Riverlane social profiles
Digital presenceRiverlane financial estimates
Financial estimateRevenue estimate
Valuation estimate
Riverlane leadership team
Management profileNumber of profiles
Profiles9 records
Riverlane funding detail
Funding detailFunding overview
Funding rounds8 records
Investors15 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Riverlane 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 Riverlane
What does Riverlane do?
Riverlane develops and sells quantum error correction (QEC) technology that enables quantum computers to correct errors faster than they accumulate. Its flagship product Deltaflow is an FPGA-based real-time QEC hardware system that processes terabytes of quantum syndrome data per second and integrates with partner quantum control stacks. The company also offers Deltakit, an open-source QEC software development kit and learning platform, and QECi, a standardized interface specification for QEC-to-control-system communication.
Is Riverlane a public or private company?
Riverlane is a private company. It is classified as venture growth investor backed and is currently operating.
When was Riverlane founded?
Riverlane was founded in 2016. It employs 51 to 100 people.
Where is Riverlane based?
Riverlane is headquartered in Cambridge, United Kingdom, in the Europe region.
How does Riverlane make money?
Four revenue lines are on record. Deltaflow QEC Systems are the primary driver. The others are deltakit Software Platform, QEC Consulting and Integration Services and government Research Grants.
Who are Riverlane's main competitors?
Direct peers on record are Q-CTRL, Quantum Machines and Qblox. Broad incumbents are IBM Quantum, Google Quantum AI and Quantinuum. Emerging players are Classiq, Strangeworks, Zapata AI and QuEra Computing.
Does Riverlane have an API?
No public API is recorded for Riverlane.
What industry is Riverlane in?
Riverlane's product category is Quantum Error Correction Technology. Its primary akta.pro industry code is HDAGAJAD, Decoding Algorithms & Real-Time Decoders (MWPM, neural, FPGA/ASIC decoders), with a secondary code of HDAGAMAD, Quantum Error Correction, Fault Tolerance & Quantum Information Theory. Its NAICS code is 334515 and its SIC code is 3825.