QuantumDiamonds Raises €15M Equity to Scale Quantum-Powered Chip Testing

German semiconductor testing startup QuantumDiamonds has closed a €15M equity round, bringing its total funding to €91M when combined with previously announced EU-backed state aid. The TUM spinout is scaling production of quantum sensing technology that helps chipmakers detect defects conventional systems can't catch.

Munich-based QuantumDiamonds has raised €15 million in equity funding, adding to a previously announced €76 million in non-dilutive EU-backed state aid — bringing total financing to €91 million. The company, spun out of the Technical University of Munich (TUM) in 2022, develops quantum sensing technology that helps semiconductor manufacturers test chips and identify defects.

The Round

The equity raise was led by climatetech investor World Fund, making its first bet on the startup. The round also included:

Bayern Kapital (German VC)
Existing investors: IQ Capital, Earlybird, First Momentum, UnternehmerTUM, Creator Fund, Onsight Ventures
A group of angel investors

The €76 million in state funding — which carries no equity dilution — comes from the German Federal Ministry for Economic Affairs and Energy and the Free State of Bavaria. The European Commission approved the state aid last month.

Scaling Quantum Sensing for Fabs

Proceeds will fund the buildout of a high-tech semiconductor testing facility in Munich and accelerate serial production of QuantumDiamonds' core technology. The company currently employs 70 people and plans to more than double its engineering team within the next 12 months.

The startup already has active deployments in the US and Taiwan, with Munich ramping up as its primary production hub.

"This is a major step in bringing quantum sensing into fabs worldwide. The response from leading chipmakers has been clear: they see our technology as essential for solving yield challenges that today's systems can't address." — Kevin Berghoff, CEO and Co-founder, QuantumDiamonds

Strategic Fit for European Chip Ambitions

The investment lands amid growing EU momentum to reduce dependence on US technology, with new legislative proposals targeting domestic chip, cloud, and AI capabilities. QuantumDiamonds' Munich facility is positioned as a key node in that strategy.

As part of its state aid agreement, the company has committed to collaborating with SMEs, research institutions, and universities across the region. QuantumDiamonds currently operates across Europe, Asia, and the US.