IonQ

IonQ is a leading developer of general-purpose quantum computing systems. Unlike competitors (like IBM or Google) that often use superconducting qubits, IonQ bets on 'Trapped Ion' technology, which uses individual charged atoms suspended in a vacuum as qubits. This approach is widely considered to offer superior stability (longer coherence times) and connectivity, making their systems less prone to errors. IonQ made history as the first pure-play quantum computing company to go public (NYSE: IONQ), and its quantum computers are the only ones available across all three major cloud platforms: Amazon Braket, Microsoft Azure Quantum, and Google Cloud.