Deteqt, an Australian deep tech company developing very small quantum magnetic sensors, has raised A$5 million (US$3.54 million) in a seed funding round. The round was led by Main Sequence, with support from ATP Fund, BOKA Capital, Beaten Zone Venture Partners, Uniseed, and the University of Sydney.
The company will use this funding to improve its next-generation product, increase production of its diamond chips, and expand its team.
“Magnetic fields permeate everything around us – every object, every geological formation, every living body,” said Dr Jim Rabeau, CEO and co-founder of Deteqt. “When we have been able to access these signals at all, the results have been profound – MRI, mineral exploration, brain imaging. But these are isolated breakthroughs, built on systems too large and expensive to deploy beyond a handful of controlled environments. Our chip-scale integration changes that entirely. We are bringing that same sensitivity into completely new environments and form factors, and when you can do that at scale, you unlock an entire layer of intelligence about the physical world – not just measuring it, but making it usable for machines to navigate, interpret, and act on in real time.”
“Deteqt is tackling one of the hardest problems in quantum technology: building sensors that are simultaneously sensitive enough to be useful and small enough to deploy at scale,” said Alejandra Romero, Investment Manager at Main Sequence. “What sets Deteqt apart is the combination of a chip-scale manufacturing path and the commercial traction they’ve built in less than eighteen months. The partner pipeline and the speed of execution are exceptional for a company at this stage.”
“The demand signal for GPS-independent navigation is no longer theoretical; it’s operational and urgent,” said Erik Thoresen, Partner at BOKA Capital, an AUKUS-aligned venture firm focused on dual-use and defence technology. “What drew us to Deteqt is that this isn’t a single-application company. The same chip-scale platform that solves positioning for defence opens entirely new categories across industries. Genuine dual-use technology with a credible manufacturing path is rare, and Deteqt has it.”
Founded in 2023 by Dr. James (Jim) Rabeau (CEO) and Professor Omid Kavehei, Deteqt is an Australian deep-tech company developing a very small chip that converts magnetic fields into useful data and insights.
Its technology combines advanced diamond-based quantum sensors with custom silicon chips to detect magnetic fields with high accuracy. The system is designed to be compact and easy to use, so it can be widely used in different applications.
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