Quantum computing specialist IonQ just moved deeper into cybersecurity with a proposed Elisity takeover worth up to US$1.3b, and that kind of pivot can quietly reshuffle where future investor attention goes. When a hardware-focused player starts eyeing cyber threats linked to AI and quantum tech, it can redirect interest across related security stocks. This piece breaks down three cybersecurity companies connected to that news and explains why they might warrant closer attention now.
The cybersecurity stocks covered below are only a starter set, and the full screen also surfaced 28 more U.S. listed security businesses with equally compelling stories that are not unpacked here. To identify and analyze those additional opportunities in one place, head into the Cybersecurity stocks screener.
Overview: Tenable Holdings provides cyber exposure and vulnerability management platforms that help enterprises reduce cybersecurity risk across IT, cloud, AI, and operational technology environments.
Operations: Tenable generates about US$1.04b from security software and services, with roughly US$553 million from the United States and the rest across EMEA, Asia Pacific, and other Americas.
Tenable Holdings fits this cybersecurity screen because it is built around exposure management, giving enterprises a way to measure and prioritise risk as their systems spread across cloud, AI, and operational networks.
“The accelerating shift towards digital transformation and cloud adoption is expanding organizations’ attack surfaces, driving sustained demand for Tenable’s unified exposure management platform. This is expected to grow total addressable market and provide strong long-term revenue tailwinds.”
What investors are really watching now is how that bigger opportunity converts into durable margins if a single key execution assumption breaks.
If that execution risk is on your mind, the full narrative for Tenable Holdings lays out how Tenable could still compound value if one of those assumptions starts cracking.
Overview: Zscaler runs a cloud-based security platform that routes user and application traffic through its Zero Trust services to block cyberattacks and data loss.
Operations: Zscaler generates about US$3.35b from subscription and support services on its cloud platform, with roughly US$1.79b from the United States and the rest split across Europe, Middle East and Africa, Asia Pacific, and other regions.
For a cybersecurity screen built around large, pure software players, Zscaler lands almost exactly where you would expect, sitting at the intersection of cloud networking, AI security, and zero-trust access that enterprises increasingly treat as nonnegotiable rather than optional spend.
