Quantinuum (Nasdaq: QNT), the world’s largest integrated quantum computing company, has emerged as a clear leader in the race to fault-tolerant quantum computing. Following a landmark $1.68 billion IPO in June 2026 and a series of peer-reviewed breakthroughs including an 800× improvement in logical qubit fidelity over physical qubits. Quantinuum is executing a clear roadmap to deliver utility-scale systems today and fault-tolerant machines by 2029.