Quantum Bridge Secures $8 Million to Fortify Global Networks Against Quantum Threats
Primo Capital leads Series A funding to redefine cybersecurity standards, addressing the systemic threats posed by the evolution of quantum computing.
TORONTO and MILAN — May 20, 2026 — Quantum Bridge Technologies has closed a US$8 million Series A funding round led by Primo Capital SGR to accelerate the global transition to quantum-safe cybersecurity infrastructure. The investment supports the company’s scale-up as financial institutions, telecommunications networks, governments and defence sectors worldwide seek to protect critical data from emerging quantum threats.
The funding round was supported by a global syndicate of investors, including Wayra (Telefónica), Cadenza VC, Club degli Investitori angels, HPE, and Bacchus Venture Capital. Together with prior financing from investors including Alumni Ventures and the University of Toronto, the round brings Quantum Bridge’s total capital raised to US$16 million.
“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,” said Mara Attardi, investment professional at Primo Capital. “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.”
“National security can’t wait for perfect conditions,” said Mattia Montagna, co-founder and CEO of Quantum Bridge Technologies. “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.”
Closing the Quantum Security Gap
Quantum Bridge addresses the systemic threat posed by quantum computing to current cryptographic infrastructure. The company’s patented Distributed Symmetric Key Establishment (DSKE) protocol enables organizations to generate, distribute, and manage symmetric keys through a decentralized architecture, removing single points of failure, improving scalability, and strengthening long-term cryptographic resilience.
Quantum Bridge brings advanced cryptographic security into practical deployment, grounded in well-established principles that have stood the test of time. Designed to work across existing infrastructure, vendors, and security layers, the company’s platform allows organizations to add quantum-safe protection from optical encryptors to application-level systems without disrupting existing operations. By making defence-grade security practical for commercial environments, Quantum Bridge helps customers advance their quantum-safe migration with greater scalability, flexibility, and confidence.
About Quantum Bridge
Founded in 2019 by Mattia Montagna and Hoi-Kwong Lo, Quantum Bridge emerged from one of the world’s leading quantum security research groups to deliver quantum-safe security solutions. Its technology integrates with existing infrastructure to help organizations protect sensitive communications today while preparing for future quantum threats. Trusted by governments, financial institutions, and critical infrastructure operators, Quantum Bridge helps organizations strengthen data sovereignty, resilience, and compliance with evolving security requirements.
For more information, visit qubridge.io.
About Primo Capital SGR
Primo Capital is Italy’s leading independent alternative investment platform, focused on key technology sectors driving economic growth. The firm manages over €500 million across specialized funds in digital, healthcare, climate, and space.
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Quantum Bridge
Gareth Pettigrew
Public Relations
+1-250-240-0638
Primo Capital
Irene Dri
Investor Relations & Communications
