Theodosian
7 known investors
Theodosian provides data-centric security that encrypts files and applies dynamic access controls directly to the content rather than the network perimeter, keeping data protected even after it leaves corporate boundaries or when credentials are compromised. It targets both small and medium organizations and enterprises handling sensitive or regulated data, offering built-in compliance tooling, zero-trust support, and self-custody key management.
CybersecurityEnterprise SoftwareSaaS
Investors · 7
1818 Venture CapitalSt Peter Port
D11ZHeilbronn
Heartfelt CapitalBerlin · $108K – $432K
Fuel Venturesreported · 2 sourcesLondon · $317.5K – $9.5M
Startup Wise Guysreported · 2 sourcesTallinn · $100K – $500K
Also in the syndicate · 2
D11Z VenturesHeartfelt
Funding
SEC filings, press & company announcements- Undisclosed amountpre-seedOct 2025
Fuel Ventures (lead), 1818 Venture Capital, D11Z Ventures, Heartfelt, Startup Wise Guys
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
In the news
Frequently asked questions
- What does Theodosian do?
- Theodosian provides data-centric security that encrypts files and applies dynamic access controls directly to the content rather than the network perimeter, keeping data protected even after it leaves corporate boundaries or when credentials are compromised. It targets both small and medium organizations and enterprises handling sensitive or regulated data, offering built-in compliance tooling, zero-trust support, and self-custody key management.
- Who are Theodosian's investors?
- Theodosian's investors include 1818 Venture Capital, D11Z, Heartfelt Capital, Fuel Ventures, Startup Wise Guys.