Cossack Labs
Track on RadarData security firm building crypto libraries, dev tools, and custom solutions.
- Total raised
- —
- Employees
- 41
- Founded
- 2014
- Momentum
- —
Data updated August 2026
About
About Cossack Labs
At a glance
Cossack Labs is a cybersecurity company specializing in Data Protection, founded in 2014 and headquartered in London, United Kingdom. It employs about 41 people and is privately held.
Cossack Labs is a data security company founded in 2014 that builds security solutions to protect sensitive data in customers' products and infrastructures. The company combines expertise in cryptography, product development, and security engineering to help organizations address data-related security risks. Products and Services: - Security libraries and developer tools for data protection - Custom security solutions tailored to customer environments - Security engineering collaboration with development teams - Application security reviews and code audits - Cryptography consulting and design review - Mobile platform security assessments - Secure development practice establishment - Third-party vendor security evaluation The company positions itself as a blend of product, R&D, and advisory firm. It focuses specifically on protecting sensitive data through cryptography, application security, and other technical means. Its approach is described as engineer-centric, aiming to make security tools easy to use and difficult to misuse for software developers. Target customers include product companies, startups, and enterprises across various sectors. The company also works with defense and government institutions, including support for Ukrainian critical infrastructure, defence, and government. Cossack Labs emphasizes a risk-centric, pragmatic methodology grounded in threat modeling rather than strict adherence to best practices. The team includes cryptographers, security software engineers, and product builders.
Momentum
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Valuation
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Products
Cossack Labs's products
Funding
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Privately held
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Headcount
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Tech stack
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FAQ
Frequently asked questions about Cossack Labs
When was Cossack Labs founded?▾
Cossack Labs was founded in 2014.
Where is Cossack Labs headquartered?▾
Cossack Labs is headquartered in London, United Kingdom.
Is Cossack Labs public or private?▾
Cossack Labs is a privately-held company.
How many employees does Cossack Labs have?▾
Cossack Labs has approximately 41 employees.
What does Cossack Labs do?▾
Cossack Labs is a data security company founded in 2014 that builds security solutions to protect sensitive data in customers' products and infrastructures. The company combines expertise in cryptography, product development, and security engineering to help organizations address data-related securi…