Theodosian, Inc

Based in the UK, Theodosian, Inc. is a cybersecurity firm that specializes in advanced data protection solutions to secure sensitive information from breaches and insider threats. Theodosian, Inc. was founded in 2025 in the United Kingdom as a cybersecurity company focused on data protection.

The company raised USD 1. 3 mn in venture funding on October 16, 2025, led by Fuel Ventures. The funding will be used to finalize version 1 of their product and begin scaling their customer base. The founder's history and previous ventures are not publicly disclosed.

Theodosian offers a comprehensive data protection platform that delivers per-file encryption and dynamic access controls to safeguard sensitive information. This solution utilizes AES-256 and FIPS 140-3 validated encryption standards, ensuring security measures remain attached to individual files regardless of their location. The platform provides intelligent access controls that enable organizations to define access based on real-time conditions, enhancing security and compliance with regulations like CMMC, ITAR, and FedRAMP. The company serves enterprise clients across sectors such as government, finance, and healthcare in North America and Europe, where data security is paramount.

Theodosian generates revenue through a subscription-based model, offering clients scalable access to their data protection solutions via annual contracts. Their pricing structure is flexible, accommodating various user levels with options for per-user fees or tiered access to enhanced features, including advanced monitoring and compliance reporting. This framework fosters long-term partnerships with organizations aiming to enhance their data security infrastructures, with flagship offerings crucial for compliance with regulatory mandates. The company intends to leverage the recent funding of USD 1.

3 mn to complete version 1 of its product and start scaling its customer base. Theodosian is also focused on expanding its market presence, particularly in North America and Europe, aligning with its mission to enhance data security for enterprise clients. Specific details about upcoming products and launch dates have not been disclosed.