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Sophos sells security software and hardware that protects businesses' computers and networks from hackers and viruses.
Sophos is a cybersecurity company. It sells the digital equivalent of locks, alarms, and guards for businesses — software that stops hackers, viruses, and ransomware from getting into company computers and networks, plus the firewalls that guard the edge of a network.
Its main products are endpoint protection, which is software installed on laptops, servers, and phones to catch malicious software, and network security, which means firewalls and related hardware that filter traffic coming into and going out of a company's systems. It also runs a managed detection and response service, where Sophos's own security analysts watch customers' systems around the clock and hunt down threats for them. Customers are mostly small and mid-sized businesses and mid-market organizations that don't have the budget or staff to build a big security team of their own. They pay Sophos subscription fees, usually annually, for the software licenses and the ongoing service. Sophos has spent years shifting from selling one-time software licenses to selling subscriptions, which gives it steadier, recurring revenue. It competes with much larger players like Microsoft, Palo Alto Networks, and CrowdStrike, as well as a long tail of smaller security vendors. Its pitch to customers is simplicity and value: strong protection that is easier to buy and run than stitching together several separate tools.
The company has an unusual ownership history. It was publicly listed in London as Sophos Group plc, then was bought by private equity firm Thoma Bravo in 2020 and taken private, which is why it is now Sophos Limited. In 2024, Thoma Bravo sold a minority stake to another investor at a valuation of roughly $7.8 billion, showing the business is still viewed as valuable even as a private company. Sophos is headquartered in Abingdon, near Oxford, and sells worldwide.
Saved answer · last researched 15 Nov 2026