Monarch Quantum Secures $55M Growth Round

Monarch Quantum Secures $55M Growth Round
Monarch Quantum, a developer of integrated photonics hardware for quantum technologies, has closed an oversubscribed $55 million growth round led by Serendipity Capital. The San Diego-based company, founded in 2025, has achieved remarkable momentum with over $60 million in customer contracts from major quantum companies including Quantinuum, Infleqtion, and NASA within just six months of launch. Additional investors in the round include 55 North, the world's largest dedicated pure play quantum fund, and Global Innovation Labs. This funding brings Monarch's total capital and customer contracts to over $115 million. The company develops Quantum Light Engines, integrated photonics systems designed for quantum computing, sensing, and communications applications.