IonQ has completed its acquisition of Elisity, a Zero Trust cybersecurity company, in an all-stock transaction involving $1.15 billion in initial consideration. Additional payments of up to $150 million may become payable if specified revenue milestones are achieved, bringing the transaction’s maximum potential value to approximately $1.3 billion.
The acquisition, announced as completed November 4, 2026, expands IonQ’s quantum security portfolio by adding technology designed to discover network assets, assess risks, and enforce identity-based security policies.
Elisity has more than 100 established enterprise deployments and relationships with corporate security leaders.
Its platform helps organizations identify connected devices and systems, evaluate their exposure, and establish access controls based on identity.
These capabilities support Zero Trust security architectures, which emphasize continuously verifying access rather than assuming that users or devices within a network are inherently trustworthy.
The acquisition combines Elisity’s technology with IonQ’s existing work in post-quantum cryptography and quantum key distribution.
Post-quantum cryptography refers to encryption methods designed to resist attacks from future quantum computers.
Quantum key distribution uses principles of quantum physics to support the secure exchange of encryption keys.
IonQ intends to bring these capabilities together with Zero Trust network security within a broader platform for enterprises and government organizations.
The company believes the combination will help customers address both current cyber threats and potential risks associated with future advances in quantum computing.
One area of concern involves attacks in which adversaries collect encrypted data today with the intention of decrypting it after more powerful quantum computing systems become available.
This approach is often described as a harvest-now, decrypt-later threat.
IonQ believes Elisity’s ability to identify connected assets and assess network risks can help customers prioritize which systems and information require additional protection.
The technology will also support the enforcement of access policies across enterprise networks.
These capabilities may help organizations reduce the movement of attackers within their environments and limit unauthorized access to sensitive systems.
Elisity’s established customer relationships provide IonQ with an additional channel for introducing its quantum security technologies.
The acquired business will continue serving customers under its existing leadership.
James Winebrenner, CEO of Elisity, will remain involved in managing the company’s operations.
IonQ intends to build on Elisity’s existing deployments while expanding access to its broader portfolio of security capabilities.
The acquisition represents a significant investment in cybersecurity as IonQ develops businesses beyond quantum computing hardware.
At closing, IonQ issued approximately $1.15 billion in common stock consideration under the merger agreement.
The sellers may receive an additional $150 million if Elisity achieves specified revenue milestones through January 2028.
The arrangement connects a portion of the transaction’s ultimate consideration to the acquired company’s future commercial performance.
By combining Zero Trust security, post-quantum cryptography, and quantum key distribution, IonQ aims to develop a broader security offering for organizations managing sensitive information and critical infrastructure.
KEY QUOTES:
“With the acquisition complete, IonQ now brings together post-quantum cryptography, quantum key distribution, and Zero Trust security in a single platform for the organizations that depend on it most. Enterprise and government organizations will now be able to draw on one security architecture to contain attacks operating at machine speed today, and protect sensitive information against future quantum threats. I’m glad to welcome James and the Elisity team to IonQ.”
Niccolo de Masi, Chairman And CEO Of IonQ
“Joining IonQ gives our team the resources and scale to serve customers with the same focus we’ve always had. Our global customers depend on us to protect their networks every day. Building on what we’ve learned across more than 100 deployments, we’ll extend the Elisity platform customers already use to help them prepare for post-quantum cryptography.”
James Winebrenner, CEO Of Elisity
