Q-CTRL
Founded 2017 Β· 213 employees on LinkedIn Β· 19 known investors
Q-CTRL builds AI-powered control software for quantum computing systems, enabling manipulation and optimization of quantum computers without destroying quantum states. The technology serves quantum computing researchers and organizations developing next-generation quantum systems.
Also known as Q-CTRL Pty Ltd
Founders & leadership
Q-CTRL was founded in 2017 by Michael J. Biercuk.
Investors Β· 19
Also in the syndicate Β· 5
Funding
SEC filings, press & company announcements- Undisclosed amountSeries BOct 2024
GP Bullhound (lead)
Source β
Source: company announcements and press reports β follow each round's link for the claim.
Company profile
researched Aug 2026Q-CTRL develops AI-powered infrastructure software used to control, stabilize and optimize quantum systems, organizing its business around two verticals: quantum computing and quantum sensing. Its products are grouped as the "Opal Suite". Black Opal is an education platform aimed at building quantum literacy for individuals, educators, enterprises and governments; Fire Opal provides automated error suppression, compilation and hardware-abstraction for running quantum algorithms on cloud-accessible quantum processors; Boulder Opal offers toolkits for quantum hardware developers and researchers covering simulation with time-varying noise, model-based control, characterization, closed-loop optimization and autonomous tune-up, with support for superconducting, trapped-ion and silicon qubit architectures; and the Quantum Utility Block provides a pre-validated, circuit-ready architecture for deploying on-premises quantum computers in data centers and HPC facilities.
In quantum sensing, Q-CTRL sells Ironstone Opal, a full-stack quantum-assured navigation system for GPS-denied environments that combines the company's own "software-ruggedized" gravitational and magnetic sensors with denoising and positioning software, using geophysical map matching rather than satellite signals. The company states the system works on land, at sea and in the air, is passive, and cannot be jammed or spoofed; it also pursues quantum inertial sensing, magnetometry and gravimetry. Q-CTRL says it does not sell sensor components, only infrastructure software for quantum computing and full-stack navigation systems, with Ironstone Opal available for presale.
The company positions its work on control as the bridge between classical and quantum systems, publishing research across AI-driven automation, compilation, quantum error correction and cold-atom quantum sensing, with papers on topics such as Fermi-Hubbard simulation, spin-qubit pulse design and heterogeneous fault-tolerant architectures.
Founding story
Q-CTRL was founded by Michael J. Biercuk, who serves as Founder and Chief Executive Officer. The company frames its origin around the premise that manipulating quantum systems without destroying them requires control finer than human capability, drawing an analogy to the role of control systems in making powered flight possible.
Business model
Q-CTRL licenses and sells software products to customers across education, enterprise and government, data center and HPC providers, defense and aerospace, quantum computing developers, and individual learners/researchers. Its performance-management software is also deployed inside third-party quantum cloud platforms, and it sells full-stack quantum navigation systems (hardware plus software) rather than standalone sensor components.
Revenue derives from software products (Black Opal education software, Fire Opal error-suppression software, Boulder Opal hardware toolkits, Quantum Utility Block), integrations of its performance-management software into quantum cloud platforms, and sales of the Ironstone Opal quantum-assured navigation system, which is offered on presale. Engagements include Fortune 500 clients, government departments and agencies, and quantum platform providers.
Traction
The company reported 130+ employees and commercial engagements with Fortune 500 clients, government agencies and quantum platform providers as of October 2024. Its software powered record-setting performance for customers including SoftBank and Mitsubishi Chemical, was integrated into IBM Quantum Services and deployed on Diraq, Oxford Quantum Circuits and Rigetti; Black Opal has been rolled out at national and state levels in the UK and Tamil Nadu, India. In sensing, Q-CTRL conducted a world-first maritime deployment of software-ruggedized quantum gravimeters and announced a GPS-free quantum gravimetric navigation demonstration in a maritime field trial. Recognitions include TIME100 Industry Leaders 2026, TIME Best Inventions of 2025 for Ironstone Opal, Workforce Development Solution of the Year 2025, Gartner Cool Vendor in Quantum Computing 2023, and finalist positions in the TechForward Awards and the Australian Defence Industry Awards 2026 SME of the Year.
Latest developments
Q-CTRL announced the world's first GPS-free quantum gravimetric navigation demonstration in a maritime field trial and published technical work on executing the Quantum Fourier Transform beyond 100 qubits on IBM hardware. It was named to TIME's inaugural TIME100 Industry Leaders list for 2026 as one of the 10 Most Influential New Frontiers Companies, and continues to publish research through 2026 on topics including large-scale Fermi-Hubbard simulation, trapped-ion matrix-model dynamics and heterogeneous fault-tolerant architectures.
βΈFull profile β market position, technology, go-to-market, geography, history, risks & controversies
Market position
Q-CTRL describes itself as a leader in quantum infrastructure software and states it is the first and only company to deliver field validation of quantum sensing technology for navigation, citing five world records in quantum computing, a 94x quantum advantage in navigation and more than 1,000x performance enhancement in computing. Its 2024 Series B expansion to $113M was described as the largest aggregate Series B for a quantum software company to date.
Q-CTRL's differentiation rests on its focus on AI-for-quantum control applied across both computing and sensing: automated, zero-configuration error suppression and hardware abstraction for algorithm developers, and software ruggedization that allows cold-atom quantum sensors to operate on moving vehicles. The company reports that its software stabilization made the difference between loss-of-signal and useful performance in maritime gravimeter trials.
Technology
The core technology is quantum control implemented as AI-powered software: automated error suppression and compilation for quantum circuits, model-based control and closed-loop optimization for hardware tune-up, simulation of quantum systems under time-varying noise, and multi-modality support across superconducting, trapped-ion and silicon qubits. On the sensing side, Q-CTRL applies "software ruggedization" to cold-atom sensors, using noise suppression, signal enhancement and autonomous calibration so trapped-atom gravimeters and magnetometers remain usable on moving platforms; measured geophysical signals are matched against maps or integrated for inertial positioning.
Go-to-market
Direct engagement with enterprise, government and defense customers alongside distribution through partner platforms: Q-CTRL's performance-management software has been integrated natively into IBM Quantum Services (including Qiskit Functions) and deployed on Diraq, Oxford Quantum Circuits and Rigetti platforms. It runs webinars, a learning center and certification content to support product adoption, engages select partners for field trials and system-integration demonstrations, and works with defense primes and government agencies.
Educators and academic institutions, enterprises and government agencies, data center and HPC providers, defense and aerospace organizations and system integrators, quantum hardware and platform vendors, quantum algorithm developers, and individual learners, students and researchers.
Geography
Headquartered in Sydney, Australia, with commercial activity spanning the United States, Japan, the United Kingdom (including national-level Black Opal rollout and engagement with the UK Navy's Office of the Chief Technology Officer), India (Tamil Nadu state rollout) and Australia (Australian Department of Defence, Australian Army).
History
Q-CTRL expanded its business from quantum control software for computing into quantum sensing and navigation. In October 2024 it expanded its Series B to a total of USD $113M with a USD $59M Series B-2 tranche led by GP Bullhound at an increased valuation. Over 2024-2026 it deployed its performance-management software into multiple quantum cloud platforms, ran field trials of software-ruggedized quantum gravimeters on maritime, airborne and ground platforms, partnered with Lockheed Martin on quantum inertial navigation and with Airbus on sensing, and received TIME recognition for Ironstone Opal in 2025 and for the company in 2026.
Risks & controversies
Q-CTRL's navigation business is positioned against GPS jamming and spoofing threats, which the company cites as affecting over 1,000 flights per day and potentially costing more than $1B per day during outages; its addressable defense and commercial demand therefore depends on geopolitical and regulatory conditions. The Ironstone Opal navigation system is described as available for presale with field trials and system-integration demonstrations still being conducted with select partners, indicating early-stage commercialization of the hardware-inclusive product line.
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Founder mafia
2 people who came through Q-CTRL went on to found or lead other companies.
Competitors Β· 5
by search overlap
Companies competing with Q-CTRL for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline Β· 11
launches, deals, and filingsQ-CTRL was named to TIME's inaugural list of 100 industry leaders for 2026, among the 10 Most Influential New Frontiers Companies.
Q-CTRL announced achieving the world's first GPS-free quantum gravimetric navigation demonstration during a maritime field trial.
TIME recognized Q-CTRL's Ironstone Opal quantum navigation system, which keeps planes and ships on course during GPS attacks, as one of the Best Inventions of 2025.
Q-CTRL partnered with Lockheed Martin to develop ultra-stable quantum inertial navigation systems, applying Q-CTRL's AI-powered infrastructure software to stabilize quantum devices against platform noise from the moving vehicle.
Q-CTRL announced an all-equity Series B-2 round of USD $59M (bringing aggregate Series B to USD $113M / AUD $166M) at an increased valuation, led by GP Bullhound, with new investors Alpha Edison, Lockheed Martin Ventures, NTT Finance, Salus Group and TISI joining existing backers.
$59M source β
Q-CTRL deployed application-focused Qiskit Functions with IBM, building on what it describes as a world-first native integration of third-party software into IBM Quantum Services.
Q-CTRL announced a partnership with Airbus building on its quantum gravimeter maritime field trials.
Q-CTRL's performance-management software for quantum computing was deployed into three additional quantum computing platforms.
Q-CTRL performed what it describes as a world-first deployment of software-ruggedized quantum gravimeters on maritime vessels, with its software stabilization determining whether usable signal was obtained.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
βΈResearch sources Β· 8
primary sources listed
- Q-CTRLq-ctrl.com Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Q-CTRL do?
- Q-CTRL builds AI-powered infrastructure software for quantum computing and quantum-assured, GPS-free navigation.
- Who founded Q-CTRL?
- Q-CTRL was founded by Michael J. Biercuk in 2017.
- Who are Q-CTRL's investors?
- Q-CTRL's investors include Alpha Edison, DCVC (Data Collective), Grit Ventures, In-Q-Tel, Main Sequence Ventures, Salus Ventures, Sierra Ventures, Square Peg Capital and 6 more.