Theodosian
Track on RadarFile-level encryption & access control platform for regulatory compliance
- Total raised
- $1.3M
- Employees
- 8
- Founded
- 2025
- Momentum
- —
Data updated August 2026
About
About Theodosian
At a glance
Theodosian is a cybersecurity company specializing in Data Protection, founded in 2025 and headquartered in London, United Kingdom. It has raised $1.3M in total funding, employs about 8 people, and is privately held.
Theodosian provides data-centric security solutions focused on file-level protection for organizations subject to regulatory compliance requirements. The company's platform addresses compliance frameworks including ITAR, CMMC, HIPAA, and PCI DSS by implementing per-file encryption, attribute-based access controls, and immutable audit trails that travel with data regardless of where it moves. The platform enforces encryption at the file level rather than relying on system or platform-level controls, ensuring that sensitive data remains protected even when shared across cloud drives, SaaS tools, vendor platforms, and personal devices. Access controls are based on contextual attributes such as user identity, location, device, and risk level, rather than simple role-based permissions. The system generates file-level audit logs that document who accessed specific files, when, from where, and under what policy conditions. Theodosian targets organizations that need to demonstrate compliance through provable security controls rather than policy documentation alone. The platform addresses common compliance gaps including data outside control boundaries, excessive or stale access permissions, encryption without key ownership, and audit trails that cannot prove specific access events. The solution is designed for environments where data moves frequently between internal systems, third-party vendors, and collaboration platforms while maintaining regulatory requirements for data protection and accountability.
Momentum
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Valuation
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Products
Theodosian's products
Funding
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FAQ
Frequently asked questions about Theodosian
When was Theodosian founded?▾
Theodosian was founded in 2025.
Where is Theodosian headquartered?▾
Theodosian is headquartered in London, United Kingdom.
How much funding has Theodosian raised?▾
Theodosian has raised a total of $1.3M in total funding.
Is Theodosian public or private?▾
Theodosian is a privately-held company.
How many employees does Theodosian have?▾
Theodosian has approximately 8 employees.