SEALSQ Completes $200M Fund Deployment with Miraex Quantum Buy

Less than a month after establishing its $200 million Quantum Fund, SEALSQ Corp has completed the acquisition of Miraex SA and begun commercializing the Swiss company’s quantum photonics technology. The June 2, 2026, acquisition positions Miraex as central to SEALSQ’s effort to build what the company calls “the world’s first Quantum Sovereign Vertical Stack,” integrating technologies from secure semiconductors to secure satellite communications. Carlos Moreira, Chairman and CEO of SEALSQ, said that this acquisition marks SEALSQ’s transition from breakthrough research to commercial deployment, adding that Miraex addresses a critical gap in scalable quantum interconnect technology. SEALSQ Completes Miraex Acquisition for Quantum Sovereign Vertical Stack SEALSQ has rapidly deployed capital following the establishment of its $200 million Quantum Fund, with over $65 million already invested in strategic quantum technology ventures less than one month after the fund’s launch. This investment culminated in the June 2, 2026, completion of the acquisition of Miraex SA, a Swiss firm based at the EPFL Innovation Park in Ecublens. The purchase establishes Miraex as a central component of SEALSQ’s efforts to construct the company’s Quantum Sovereign Vertical Stack. The acquisition directly addresses a critical bottleneck in scaling quantum technologies; Miraex’s Thin Film Lithium Tantalate Photonic Integrated Circuit (TFLT PIC) platform efficiently converts quantum information between microwave and optical frequencies. This capability is essential for both superconducting quantum processors and long-distance quantum communications, solving a key challenge for practical quantum computing and networking. SEALSQ intends to leverage this technology across four key markets: distributed quantum computing, quantum networking, quantum sensing, and a Quantum Orbital Space Cloud (QOSC) for secure satellite communications. The company’s strategy focuses on interconnecting separate quantum processors to increase computing capacity and building optical backbones for quantum key distribution. Moreira explained that Miraex completes the quantum interconnect layer of their vertical stack, an element he claims competitors cannot currently replicate. SEALSQ aims to deliver a complete, sovereign platform encompassing secure semiconductors, post-quantum cryptography, quantum networking, distributed quantum computing, and secure satellite communications to governments, defense organizations, and critical infrastructure operators worldwide. This integrated approach is expected to transform the company’s research pipeline into a revenue-generating operation and solidify its growth trajectory. Miraex closes the quantum interconnect layer of our Quantum Sovereign Vertical Stack, the one piece the industry cannot scale without, and we now own it outright, acquired and funded through our $200 million Quantum Fund. Source: https://www.globenewswire.com/news-release/2026/07/31/3336833/0/en/sealsq-launches-commercial-phase-of-miraex-quantum-photonics-technology-following-strategic-acquisition.html Stay currentSee today’s quantum computing news on Quantum Zeitgeist for the latest breakthroughs in qubits, hardware, algorithms, and industry deals. Tags: Dr. Donovan Dr. Donovan is a futurist and technology writer covering the quantum revolution. Where classical computers manipulate bits that are either on or off, quantum machines exploit superposition and entanglement to process information in ways that classical physics cannot. Dr. Donovan tracks the full quantum landscape: fault-tolerant computing, photonic and superconducting architectures, post-quantum cryptography, and the geopolitical race between nations and corporations to achieve quantum advantage. The decisions being made now, in research labs and government offices around the world, will determine who controls the most powerful computers ever built. Latest Posts by Dr. Donovan: How To Prepare For Quantum Computing, The Complete Readiness Guide July 31, 2026 Rice Study Realizes Tunable Temperatures for Ion Qubits July 31, 2026 Quasiparticle Absorption Limits Microwave Qubit Fidelity July 30, 2026