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| Company type | Private |
|---|---|
| Industry | Information technology Software Network security |
| Founded | 2001; 25 years ago (2001) |
| Fate | Acquired by GFI Software |
| Headquarters | San Jose, California |
Key people | Mirek Kren (CEO) |
| Products | Kerio Connect, Kerio Control, Kerio Operator, Samepage |
Number of employees | 200 |
| Website | kerio |
Kerio Technologies, Inc. was atechnology company specializing incollaboration software andunified threat management for small and medium organizations. Founded in 1997, Kerio is headquartered inSan Jose, California.[1]
In January 2017, GFI Software acquired Kerio.[2] GFI Software is owned by Aurea SMB Solutions, which in turn is owned by ESW Capital Group.[3]

Kerio Technologies incorporated in 2001, but its first product WinRoute Pro entered the Internet security market in 1997,[4] as it was owned and maintained by Tiny Software until February 1, 2002.[5] Tiny Software then transferred sales and development of its software to Kerio, where the developers continued to work on it under the Kerio brand.
In the early 2000s, Kerio's main products were Kerio Personal Firewall[6] and Kerio WinRoute Firewall[7] and the company focused on collaboration software with Kerio MailServer.[8] Kerio discontinued its Personal Firewall in late 2005, which was then acquired by Sunbelt Software.[9][10]
Starting in 2010, Kerio MailServer was renamed to Kerio Connect[11] and Kerio WinRoute to Kerio Control.[12] Kerio introduced Kerio Operator, anIP PBX system, in 2011[13] and Samepage, afile sharing and collaboration software, in 2013.[14]
In January 2017, Kerio was bought by GFI Software.[2][15] Kerio Connect, Kerio Control, Kerio Operator and Kerio Cloud became GFI assets.[2][16] Samepage was not part of the GFI acquisition and was later acquired by Paylocity in 2020.[17]
Kerio provides IT products and services mainly in security solutions[18] which are physical devices andvirtual appliance that could run onvirtualization platforms such asVMware vSphere.
Kerio Control is a network security solution that manages security services and perform asUnified Threat Management such asintrusion detection and prevention (IPS), gatewayantivirus,VPN,web content,application filtering and endpoint security software.[19][20]
In November 2024, a major vulnerability was discovered that could allow forremote code execution, affecting versions 9.2.5 through 9.4.5.[21] Additional patches were released in January 2025.[22]
Kerio Connect providesemail service for small and mid-sized businesses. Some of its features include security features such asSSLencryption,S/MIME andantispam. Supporting forMicrosoft Outlook, and mail servicesIMAP andPOP.[23]