Investors: Serendipity Capital, 55 North, Global Innovation Labs
Monarch Quantum closed an oversubscribed $55M growth round in March 2026 to scale production of integrated photonic control systems for quantum computing, sensing, and communications.
View article →Quantum Startup Secures $115M in Six Months, Eyes Hardware Bottleneck
Monarch Quantum, a San Diego photonics company, closed a $55M growth round in March 2026 after launching in January with $60M in customer contracts, positioning itself as the infrastructure layer quantum computing cannot yet build at scale.
Monarch and Oratomic claim 10,000 qubits suffice for cryptographic quantum computing
Monarch Quantum and Oratomic announced a partnership to build fault-tolerant quantum computers with thousands of logical qubits using only ~10,000 physical qubits by 2030, fundamentally challenging the industry's million-qubit assumption and accelerating post-quantum cryptography timelines.
Qblox ships first Made-in-America quantum control systems from Massachusetts
Qblox began manufacturing quantum control electronics in Canton, Massachusetts on April 1, 2026, backed by a DOE-Fermilab partnership — the first onshoring of quantum hardware infrastructure in response to U.S. supply-chain mandates.