Deteqt, a Sydney-based developer of chip-scale diamond-on-chip quantum sensors for magnetic field measurement, has raised A$5M ($3.3M USD) in seed funding led by Main Sequence Ventures. The sensors enable high-precision navigation, imaging, and sensing in harsh environments at room temperature with low size, weight, and power. The capital will accelerate product advancement, manufacturing scale-up, team growth, and commercial deployments in defense and resources.
Ghost Murmur Hype Fuels Sensing Race
The round closes amid heightened interest in quantum magnetometers following reports of a CIA "Ghost Murmur" device detecting a downed pilot's biosignals in Iran per Forbes Australia. Fellow Australian Quantum Brilliance raised $20M Series A in March 2026 for diamond quantum tech. Deteqt's diamond-on-silicon integration targets GPS-denied navigation where traditional sensors fail due to bulk and fragility.
GPS-Denied Navigation Demands Resilience
Geopolitical tensions expose vulnerabilities in GPS-reliant systems, driving demand for alternative positioning, navigation, and timing (PNT) in contested environments. Current magnetometers require cryogenics or large setups, limiting deployment in drones, subsea vehicles, and subterranean ops. Deteqt addresses this with room-temperature nitrogen-vacancy (NV) diamond sensors compatible with semiconductor fabs for scalable production.
Diamond-on-Chip Unlocks Field Deployment
Deteqt's platform integrates NV centers in diamond onto silicon chips, delivering laboratory-grade precision in handheld packages. This contrasts with cold atom competitors like Atomionics, which prioritize gravity sensing over magnetic fields. The field-tested prototype advanced from lab research to deployment-ready in 18 months.
As CEO James Rabeau noted:
"Our chip-scale integration changes that entirely… unlock an entire layer of intelligence."
Defence VCs Signal AUKUS Priority
Main Sequence led with co-investors ATP Fund (US deep tech), BOKA Capital (AUKUS defence), Beaten Zone Venture Partners (Australian sovereign tech), Uniseed (uni spinouts), and University of Sydney. This syndicate spans AU/US/UK, reflecting conviction in dual-use applications from defence to mining. Investors cite exceptional execution and partner pipeline amid urgent operational demand.
Alejandra Romero of Main Sequence added:
"The partner pipeline and the speed of execution are exceptional."
Quantum Sensors Market Scales Rapidly
The quantum sensors market stands at $948.6M in 2026, projected to reach $2.65B by 2033 at 15.8% CAGR. Miniaturization trends favor chip-scale designs for autonomous systems and exploration. AUKUS Pillar 2 boosts quantum sensing collaboration across Australia, US, and UK.
Spinout Founders Bring Quantum Pedigree
Co-founder and CEO James Rabeau brings 20+ years, including Director of Quantum Technologies at CSIRO and President of Infleqtion Australia. Technical co-founder Omid Kavehei offers CMOS expertise as a University of Sydney professor. COO Rupal Ismin scaled deep tech via Sydney Knowledge Hub and Quantum Australia.
Deployments Follow Team Expansion
Post-round, Deteqt eyes doubled headcount with recent hires in photonics, software, and partnerships. Funds target defence contracts like the existing Australian Defence Force deal and resources integrations such as Fleet Space. Field trials position the company for national and AUKUS-scale rollout.