IonQ Agrees to Acquire Elisity for Up to $1.3B

Quantum computing company IonQ is moving deeper into enterprise cybersecurity with an agreed acquisition that could be worth up to $1.3 billion.

What happened

IonQ entered a definitive all-stock agreement to acquire Elisity, a developer of Zero Trust network security and microsegmentation software. The headline value is up to $1.3 billion, including as much as $150 million of performance-related earnouts. Elisity's software helps enterprises apply identity- and context-based access controls to users, devices, workloads and non-human systems, including AI agents. IonQ plans to combine that technology with its existing post-quantum cryptography and quantum-security capabilities. Completion is expected in the fourth quarter of 2026 and remains subject to customary conditions and approvals; the transaction is not yet closed.

Why it matters

The acquisition potentially gives IonQ established enterprise customer relationships and recurring software revenue in a market with immediate security needs. It also offers a route to sell quantum-readiness services before the arrival of cryptographically relevant quantum computers. For customers, access control and the ability to contain breaches remain problems that exist today regardless of future quantum threats.

The bigger picture

Quantum firms are increasingly looking for adjacent businesses that can generate commercial value now while preparing customers for longer-term technological change. Elisity could help bridge that timing gap. Integration and valuation risks remain substantial, and the strategic potential does not establish that quantum-based threats are imminent.