The biggest buyers in cybersecurity are a search and cloud company, a workflow software vendor, a payment network, and a consultancy.

The four acquirers below are ranked by size and strategic weight of announced security deals.

Fortune described an $8 billion cybersecurity acquisition as the center of this strategy in an August 19, 2026, feature.

Armis “already tracks 7 billion of those devices in real time,” said ServiceNow CEO Bill McDermott, and Veza maps human, machine, and AI identities.

Risk and security services are “collectively growing north of 20%,” according to Visa CEO Ryan McInerney.