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Funding record · 2025 / 10

Theodosian raises $1.3M Pre-Seed for data protection
Announced 17 October 2025 · Recorded 8 September 2026 · Last verified 8 September 2026
Theodosian, a data protection company based in London, United Kingdom, raised $1.3M in a Pre-Seed announced on 17 October 2025, led by Fuel Ventures, D11Z Ventures and 1818 Venture Capital with two others. Its disclosed equity funding is now $1.3M across 1 round.
- Amount
- $1.3M
- Round
- Pre-Seed
- Announced
- 17 October 2025
- Lead investors
- Fuel Ventures, D11Z Ventures, 1818 Venture Capital, Heartfelt, Startup Wise Guys
- Sources on record
- 1fintech.global
From the source
Cybersecurity startup Theodosian secures $1.3M pre-seed led by Fuel Ventures
Theodosian, a UK-based cybersecurity startup focused on enterprise data protection and compliance, raised $1.3M in pre-seed funding led by Fuel Ventures.
fintech.global · 17 October 2025 ↗The Mandos read
What the record says about Theodosian
- 8 employeeslocked →
history and breakdowns in the platform
- Exit Readiness: Lowlocked →
Tested against 751 past exits in the Mandos record: 43% sat in Watch or Elevated 2 years before. Companies in Elevated exited at 3.1× the record's rate.
Funding history
Theodosian funding on record
Theodosian has raised $1.3M in priced equity. Its most recent round was a Pre-Seed in October 2025.
Latest round on record: Pre-Seed, Oct 2025.
Theodosian funding on the profile →In the platform
The round is the fact. The read is the product.
Every round, investor and correction for Theodosian, the competitors buyers weigh it against, hiring by department, and an alert when the next thing happens.
The same record answers in Claude, ChatGPT and Cursor through the Mandos MCP server.
The Mandos Brief
Cybersecurity funding, deals and moves, every Monday.
FAQ
Questions people ask
- How much did Theodosian raise in its Pre-Seed?
- Theodosian raised $1.3M in a Pre-Seed announced on 17 October 2025.
- Who invested in Theodosian's Pre-Seed?
- The round was led by Fuel Ventures, D11Z Ventures, 1818 Venture Capital, Heartfelt, Startup Wise Guys.
- What does Theodosian do?
- Theodosian is a cybersecurity company specializing in Data Protection, founded in 2025 and headquartered in London, United Kingdom.














