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Resistant AI

Resistant AI helps to protect AI systems from targeted manipulation, adversarial machine learning attacks and advanced fraud.

Resistant AI has raised €48M across 5 funding rounds from 12 investors, most recently a Series B round in Oct 2025. Based in Prague, Czech Republic; founded 2019; active in AI. Data as of 28 Oct 2026.

Prague, Czech RepublicFounded 2019resistant.ai ↗
AI
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Total raised
€48M
€48,455,496
Funding rounds
5
Investors
12
distinct backers
Active since
2020-04
latest 2025-10

Funding by year

EUR raised per year
Resistant AI — funding by year — interactive chart.
Data table
Resistant AI — funding by year
2020€2.5M
2021€14M
2023€10M
2025€22M

Signals

High confidence
Raise-next likelihood75
base rate 48% for Series B
  • ▲ In typical raise window
  • ▲ Up-round momentum
Exit likelihood29
base rate 11% (2+ rounds)
  • ▲ €30M+ raised
  • ▲ 5 rounds raised
  • ▲ 7y since founding (typical exit age)
  • ▲ Recently backed by strong-exit-track investors

Timing: in window vs cohort gap · momentum up. Funding-only estimates, not predictions and not investment advice — see signals.

Funding rounds

5 rounds
DateStageAmountInvestors
2025-10-13Series B€22MDTCP,Existing investors,GV,Notion CapitalView deal →
2025-07-23Other—ExperianView deal →
2023-06-27Series A€10MNotion CapitalView deal →
2021-10-21Series A€14MAngel Investors,Credo Ventures,GV,Index Ventures,Jan Hammer,Ondrej Bartos+2 moreView deal →
2020-04-30Seed€2.5MCredo Ventures,Index VenturesView deal →

Investors

12
Angel InvestorsCredo VenturesDTCPExisting investorsExperianGVIndex VenturesJan HammerNotion CapitalOndrej BartosSeedcampVladislav Jez

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