Quantum Bridge Technologies, a quantum-safe cybersecurity infrastructure company, has closed an $8m Series A funding round to accelerate the global rollout of its cryptographic protection systems.
The round was led by Primo Capital SGR, with participation from a broad international syndicate comprising Wayra (Telefónica), Cadenza VC, Club degli Investitori angels, HPE, and Bacchus Venture Capital. Combined with earlier financing from Alumni Ventures and the University of Toronto, the raise brings Quantum Bridge’s total funding to $16m.
The capital will support the company’s expansion as financial institutions, telecoms operators, governments and defence organisations increasingly look to shield critical data from the risks posed by advances in quantum computing.
Quantum Bridge has developed a patented Distributed Symmetric Key Establishment (DSKE) protocol, which allows organisations to generate, distribute and manage symmetric keys through a decentralised architecture. The approach eliminates single points of failure, improves scalability and is designed to strengthen long-term cryptographic resilience. The platform is built to integrate with existing infrastructure, vendors and security layers — spanning optical encryptors through to application-level systems — without disrupting current operations.
Primo Capital SGR investment professional Mara Attardi said, “Leading this round represents a defining milestone for Primo Capital as we establish our footprint in the quantum technology landscape — a sector we view as the cornerstone of digital resilience for the coming decade. Quantum Bridge immediately stood out for the versatility of its architecture, but it was the team that clinched our conviction. The CEO possesses that rare, dual-threat leadership: the deep academic rigor required to build cutting-edge tech and the commercial acumen to navigate the complexities of global institutional markets. This is a team that doesn’t just understand the quantum future; they have built the bridge to reach it today.”
Quantum Bridge Technologies co-founder and CEO Mattia Montagna said, “National security can’t wait for perfect conditions. We build quantum-safe systems that work inside real networks today — systems designed to keep protecting sovereign communications as the threat landscape evolves. This funding means we can meet more organizations where they are, and get them protected faster.”
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