Monarch Quantum Lands $55M

Monarch Quantum announced an oversubscribed $55 million growth round led by Serendipity Capital.

The company entered 2026 with over $60 million in customer contracts from firms including Quantinuum, Infleqtion and NASA.

Within six months of its 2025 founding, Monarch surpassed $115 million in combined capital and customer contracts.

Monarch develops integrated photonics systems called Quantum Light Engines™ for quantum computing, sensing and communications.