Q CTRL
Q-CTRL, founded in 2017 by Professor Michael J. Biercuk, is based in Sydney, Australia, and specializes in quantum technology infrastructure. The company addresses key challenges in quantum hardware, particularly focusing on error suppression and stability to enhance the practical use of quantum computing and sensing technologies. Q-CTRL develops quantum control infrastructure software that improves the performance and reliability of quantum systems. Their offerings include error suppression tools, AI-driven optimization methods, and solutions compatible with various quantum hardware types, such as superconducting qubits and trapped ions. The company collaborates with leading organizations like IBM and integrates its solutions into cloud-based quantum computing platforms, including Google Cloud. With a mission to make quantum technology practical and scalable, Q-CTRL aims to overcome significant technical barriers in the field. The company has evolved from an academic spin-off to a global scaleup, recognized for its contributions to quantum control theory and its widely adopted software tools in the quantum industry.
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Headcount trend
Q CTRL went from 84 employees in Jul 2023 to 132 in Jun 2025. Jan to Jun 2025: 15 people joined, 3 left.
Headcount data through Jun 2025
Org structure
Headcount by department
Hiring now
See all jobsSalaries at Q CTRL
All salaries1 salary profiles in the US
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 2 filings.
Funding
- Apr 2025
- Oct 2024 · Series B · $59M · GP Bullhound, Alpha Edison, NTT Finance
- Jul 2023 · $2.3M
- Jul 2023 · Series B · $2.6M · Morpheus Ventures
- Jan 2023 · Series B · $27.4M · Salesforce Ventures, Alumni Ventures, Mindrock Capital
- Nov 2021 · Series B · $25M · Airbus Ventures, Ridgeline Partners
- Jul 2021 · $3.5M
- Sep 2019 · Series A · $15M · Square Peg Capital, Sierra Ventures, Sequoia Capital
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Q CTRL FAQ
How many employees does Q CTRL have?
Q CTRL has about 132 employees, up 3.9% over the 3 months to Jun 2025.
Does Q CTRL sponsor H1B visas?
Yes. Q CTRL filed 2 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
What is Q CTRL's revenue per employee?
Q CTRL makes about $207K in revenue per employee, based on $27.3M annual revenue and 132 employees.
How much does Q CTRL pay?
6figr has 1 salary profile for Q CTRL in the US, with pay broken down by role, level, gender and ethnicity on the Q CTRL salaries page. See Q CTRL salaries
How much funding has Q CTRL raised?
Q CTRL has raised $134.8M in total funding.
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.