Guardtime Guardtime is a company that has expertise in the design and implementation of machines – distributed virtualized computers that execute tasks with cryptographic proof of correctness. | ![]() Keychain Keychain is a company that provides secure decentralized data authentication for finance, IoT, and enterprise sectors. | ![]() SpiderOak Mission Systems SpiderOak Mission Systems is a technology company that develops a cybersecurity platform. | ![]() KSIGN KSIGN ((주)케이사인) is a technology company that develops cryptographic authentication software solutions. | ||
Founding Date | Founding Date 2008 | Founding Date 2016 | Founding Date 2018 | Founding Date 2007 | Founding Date 1999 |
Type | Type Private | Type Private | Type Private | Type Subsidiary | Type Public |
Tags | |||||
Locations | Locations Lausanne, CH HQ Tallinn, EE Tartu, EE Amsterdam, NL Singapore, SG Berkeley, US | Locations Singapore, SG HQ Minato City, JP | Locations Amsterdam, NL HQ | Locations Lenexa, US HQ | Locations HQ |
Employees | Employees 6320% decrease | Employees 10 | Employees 5 | Employees 8 | Employees N/A |

Keychain is a company that provides secure decentralized data authentication for finance, IoT, and enterprise sectors.
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WordProof is a company that provides timestamping services using blockchain technology.
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SpiderOak Mission Systems is a technology company that develops a cybersecurity platform.
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KSIGN ((주)케이사인) is a technology company that develops cryptographic authentication software solutions.
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