Key Takeaways
- SBQuantum, a Sherbrooke‑based quantum‑technology startup, is launching a U.S. entity (Zero Drift Technologies) in Cambridge, Massachusetts to commercialize its diamond‑based quantum magnetometers for GPS‑denied navigation.
- The sensors enable unjammable and unspoofable positioning by measuring the Earth’s magnetic field, which is far harder to disrupt than radio‑based GPS signals.
- A satellite carrying two of SBQuantum’s diamond quantum sensors was placed in orbit as part of the U.S. National Geospatial‑Intelligence Agency’s MagQuest Challenge to improve real‑time magnetic‑field modeling beyond the aging Swarm constellation.
- The company’s technology aims to support autonomous drones, aircraft, and Arctic mapping where GPS is unreliable and the magnetic north pole shifts rapidly.
- SBQuantum has secured a US$4 million seed round to fund U.S. expansion, product development, and participation in Defense Innovation Unit challenges, while also aligning with Canada’s growing defence budget and National Research Council programs.
SBQuantum’s U.S. Expansion and Core Technology
SBQuantum, headquartered in Sherbrooke, Quebec, is establishing an American subsidiary called Zero Drift Technologies in Cambridge, Massachusetts. The move is designed to bring its quantum diamond magnetometers to the U.S. market, where defence contractors and government agencies increasingly require navigation solutions that resist GPS interference. The company’s core product is a sensor that exploits nitrogen‑vacancy centers in diamond to detect minute variations in the Earth’s magnetic field with high precision and stability. Unlike conventional magnetometers, these quantum devices operate without drift over long periods, making them suitable for continuous, reliable navigation in contested environments.
GPS Denial in Modern Conflict Zones
In recent conflicts—most notably in Ukraine and across the Middle East—adversaries routinely employ GPS jamming and spoofing to disrupt the operation of drones, autonomous vehicles, and precision‑guided munitions. Jamming overwhelms a receiver with noise, while spoofing feeds it false coordinates, causing navigation systems to lose lock or generate erroneous positioning. As a result, militaries have turned to workarounds such as fibre‑optic‑tethered drones, which retain a wired link to a ground station to remain immune to radio‑frequency interference. SBQuantum founder David Roy‑Guay notes that these cumbersome solutions highlight a clear demand for a truly autonomous, GPS‑free navigation method.
How Diamond Magnetometers Provide an Ungamble Navigation Solution
SBQuantum’s approach leverages the Earth’s magnetic field as a stable reference point for navigation. Because the field originates from planetary dynamo processes, it cannot be easily overridden by terrestrial jamming or spoofing attempts; creating a counterfeit field would require a magnet or electromagnetic coil comparable in strength to the planet’s core, which is physically implausible. To make magnetic navigation viable, the company must maintain an up‑to‑date, high‑resolution model of the field’s spatial and temporal variations. This model serves as a baseline against which onboard sensors can determine position and orientation by measuring local magnetic anomalies.
Satellite Demonstration and the MagQuest Challenge
In March, SBQuantum launched a satellite carrying two of its diamond quantum sensors into low‑Earth orbit as part of the MagQuest Challenge, a program sponsored by the U.S. National Geospatial‑Intelligence Agency (NGA). The mission aims to test the sensors’ ability to capture the Earth’s magnetic field in real time, offering a significant improvement over the legacy Swarm constellation—which provides only periodic snapshots that must be pieced together to generate a global model. By delivering continuous, high‑frequency data, SBQuantum’s orbital platform will enable the creation of a dynamic magnetic reference map that can be accessed by aerial or ground vehicles equipped with the company’s magnetometers for precise, GPS‑independent navigation.
Applications for Drones, Aircraft, and Arctic Operations
The real‑time magnetic model generated from the satellite data will allow drones and aircraft to navigate accurately near the ground without relying on GPS, a capability particularly valuable in contested airspace where signal denial is expected. Moreover, the technology holds promise for Arctic operations, where the magnetic north pole drifts rapidly and traditional charts require frequent updates. SBQuantum’s system can provide continuously corrected heading and position information, reducing the logistical burden of chart revisions and enhancing safety for both civilian and military missions in high‑latitude regions.
Funding, Partnerships, and U.S. Market Strategy
To support its U.S. push, SBQuantum closed a US$4 million seed round on Thursday, earmarking the capital for product development, team expansion, and market entry activities in the United States. Eric Giroux, CEO of both SBQuantum and Zero Drift Technologies, emphasized that the U.S. presence will facilitate collaboration with American defence agencies, including potential participation in the Defense Innovation Unit’s challenges that solicit magnetic‑field data collection via aerial platforms. The company anticipates commencing pilot mapping projects in the U.S. soon, with parallel efforts expected in Canada once federal procurement structures aligned with the new Defence Industrial Strategy are operational.
Leveraging Canada’s Defence Investments and Closing the Demo Gap
Back in Canada, Roy‑Guay sees ample opportunity to benefit from the country’s increasing defence budget and programs such as those offered by the National Research Council. He notes that while government officials frequently express interest in working closely with industry—requesting pilots, demonstrations, and joint trials—there remains a need to translate those intentions into concrete projects. SBQuantum is therefore focused on bridging the gap between policy enthusiasm and actual deployment by delivering functional demos of its quantum magnetometer‑based navigation system to Canadian defence clients, thereby showcasing the technology’s readiness for broader adoption.
Outlook: From Space‑Based Sensors to Field‑Ready Navigation
SBQuantum’s trajectory reflects a growing convergence of quantum sensing, satellite technology, and defence‑driven demand for resilient navigation. By proving the utility of diamond magnetometers in orbit, the company lays the groundwork for a next‑generation navigation layer that can operate alongside—or replace—GPS in environments where electronic warfare is prevalent. Continued success in the U.S. market, supported by recent funding and strategic partnerships, will likely accelerate the integration of quantum‑enhanced magnetic navigation into drones, autonomous vehicles, and Arctic missions, positioning SBQuantum (and its Zero Drift subsidiary) as a key player in the emerging landscape of secure, GPS‑independent positioning.