Astaro AG
Astaro AG was a German-American network security appliance company (2000–2011), known for its Astaro Security Gateway and later acquired by Sophos.
Last updated September 26, 2026
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Overview
Astaro AG was a computer security company founded in 2000 and active until 2011. It manufactured and sold network appliances focused on security, with dual headquarters in Germany and the United States. Its flagship product line, the Astaro Security Gateway, combined software and hardware and was used by more than 30,000 businesses. The company developed its products in close cooperation with the open-source community while operating on a software-licensing business model. It was regarded as one of the second-generation open-source companies, alongside MySQL AB and JBoss. Astaro funded several open-source projects, including Netfilter, ClamAV, Openswan, strongSwan, and OpenVPN. From April 6, 2006, it was a sponsor of Steve Gibson's Security Now! podcast. In 2011, Astaro was acquired by Sophos, and its products and services were integrated into Sophos's offerings.
History
Astaro AG was founded in 2000 as a computer security company specializing in network appliances. It maintained headquarters in both Germany and the United States. Its main product series, the Astaro Security Gateway, was a hardware and software appliance used by over 30,000 enterprises. The company developed its products in close relationship with the open-source community, though its business model was based on selling software licenses. It was considered one of the second-generation open-source companies, together with MySQL AB and JBoss. Astaro provided funding to open-source projects such as Netfilter, ClamAV, Openswan, strongSwan, and OpenVPN. On April 6, 2006, it became a sponsor of Steve Gibson's podcast Security Now!. In 2011, Astaro was acquired by Sophos, and its products and services were integrated into Sophos's portfolio. The company ceased to exist as an independent entity after the acquisition.
- 2011
Acquired by Sophos; products integrated
- 2006
Became sponsor of Security Now! podcast on April 6
- 2000
Astaro AG founded
Products and positioning
Open-source-friendly network security appliance vendor
Astaro Security Gateway
Flagship network security appliance combining hardware and software, used by over 30,000 businesses.
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