Sophos subsequently renamed the Astaro UTM to Sophos UTM. At the time Astaro was the 4th largest UTM ( Unified Threat Management) vendor and while the deal made sense at the time Forbes questioned its viability. In May 2011, Sophos announced the acquisition of Astaro, a privately held provider of network security products, headquartered in Wilmington, Massachusetts, USA and Karlsruhe, Germany. In 2007, Sophos acquired ENDFORCE, a company based in Ohio, United States, which developed and sold security policy compliance and network access control (NAC) software. Acquisitions and partnerships įrom September 2003 to February 2006, Sophos served as the parent company of ActiveState, a developer of programming tools for dynamic programming languages: in February 2006, ActiveState became an independent company when it was sold to Vancouver-based venture capitalist firm Pender Financial. In 2024, President Joe Levy was appointed acting CEO after Kris Hagerman resigned from the CEO position. On 2 March 2020, Sophos announced the completion of the acquisition. The board of directors of Sophos stated their intention to recommend the offer to the company's shareholders unanimously. On 14 October 2019, Sophos announced that Thoma Bravo, a US-based private equity firm, made an offer to acquire Sophos for US$7.40 per share, representing an enterprise value of approximately US$3.9 billion. The company behind HitmanPro, Surfright, was acquired by Sophos in December 2015. Sophos was floated on the FTSE in September 2015. In June 2015, Sophos announced plans to raise US$100 million on the London Stock Exchange. In February 2014, Sophos announced that it had acquired Cyberoam Technologies, a provider of network security products.

Sophos issued a statement of apology and confirmed that they had suspended their relationship with the partners in question and launched an investigation. In 2011, Utimaco Safeware AG (acquired by Sophos in 2008–9) was accused of supplying data monitoring and tracking software to partners that have sold to governments such as Syria. In 2010, the majority interest of Sophos was sold to Apax. In 2003, Sophos acquired ActiveState, a Canadian software company that developed anti-spam software. In the late 1990s, Sophos concentrated its efforts on developing and selling antivirus technology and embarked on a program of international expansion. During the late 1980s and into the 1990s, Sophos primarily developed and sold a range of security technologies in the UK, including encryption tools available for most users (private or business). Sophos was founded by Jan Hruska and Peter Lammer and began producing its first antivirus and encryption products in 1985. Sophos was listed on the London Stock Exchange until it was acquired by Thoma Bravo in February 2020. It develops and markets managed security services and cybersecurity software and hardware, such as managed detection and response, incident response and endpoint security software. is a British security software and hardware company.

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