Resistant AI
Lewes, US · Founded 2020 · Delaware corporation · 165 employees on LinkedIn · 6 known investors
Find your way into Resistant AI
321 people in our graph share verified history with the Resistant AI team — schools, employers, funds. One of them is your warm intro.
Adamunlockedknows Martin Rehak · together at Cisco (overlapped)
×6knows the team · via Cisco
×2knows the team · via Resistant AI
×2knows the team · via Schlumberger SmartCards (now Gemalto)
knows the team · via Czech Technical University in Prague
Resistant AI provides AI-powered software that detects fraud in documents — including fake, tampered, or AI-generated files — and adds a fraud and money-laundering detection layer to existing transaction monitoring systems. It serves fraud and compliance analysts in fintech and financial services for use cases such as merchant onboarding, loan underwriting, claims processing, AML, and APP fraud.
Founders & leadership
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Martin RehakinCEO & FounderCEO and director of Resistant AI, which builds AI-powered software to detect document fraud and add fraud and money-laundering detection to transaction monitoring systems for fintech and financial services. His work focuses on secure, robust machine learning and protecting financial systems from adversarial attacks and misuse.
MG
Martin GrillinCo-Founder & Researcher & Team leadMartin Grill is a machine learning researcher with expertise in anomaly detection, ensemble systems, user behavior analysis, and adversarial machine learning. He is Director at Resistant AI, which provides AI-powered document fraud detection and transaction monitoring software for financial services.
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Jan JuskoinCo-Founder & Researcher
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Jan StiborekinCo-Founder
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Karel BartošinCo-FounderKarel Bartoš brings experience in machine learning applied to network security, including work on network traffic classification, intrusion detection systems, and distributed data fusion. He is founder of Resistant AI, which develops AI-powered software for detecting fraud in documents and transaction monitoring.
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Lukáš MachlicainCo-founder & Researcher
Board
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Investors · 6
Funding
SEC filings, press & company announcements$37.5M disclosed across 2 of 3 rounds · 2021–2025
- $25MSeries BOct 2025 · 3 sourcesSource ↗
- Undisclosed amountSeries AJun 2023
Credo Ventures, GV, Index Ventures, Notion Capital, Seedcamp
Source ↗
▶$12.5MraisedJun 2021 · 8 investors · Other TechnologyRule 506(b)
▶$12.5MraisedJun 2021 · 8 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Martin RehakExecutive Officer, Director
- Ondrej BartosDirector
- Martin GrillDirector
- Jan HammerDirector
- Offering amount
- $12.5M
- Amount sold
- $12.5M
- First sale
- Jun 2021
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 4
by search overlap
Aura257 shared keywordsAura provides AI-powered digital security and protection services for families and individuals across all ages. The platform addresses online safety risks including identity theft and personal security threats in an increasingly connected environment.
Wise165 shared keywordsWise is a financial platform offering international money transfers, multi-currency accounts, and debit cards with low fees and competitive exchange rates, serving millions of users globally.
Inscribe156 shared keywordsInscribe builds an AI-powered document fraud detection platform for financial institutions, banks, and fintechs to identify and prevent fraudulent applications. The company uses agentic AI agents that are continuously trained to detect fake documents and stay ahead of evolving fraud tactics.
Jotform144 shared keywordsJotform provides an online form builder with integrations that automatically forward new form submissions, file uploads, and payment details to communication tools like Microsoft Teams. It serves teams across industries looking to automate the distribution of submitted form data.
Companies competing with Resistant AI for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Resistant AI do?
- Resistant AI provides AI-powered software that detects fraud in documents — including fake, tampered, or AI-generated files — and adds a fraud and money-laundering detection layer to existing transaction monitoring systems. It serves fraud and compliance analysts in fintech and financial services for use cases such as merchant onboarding, loan underwriting, claims processing, AML, and APP fraud.
- Who founded Resistant AI?
- Resistant AI was founded by Martin Rehak, Martin Grill, Jan Jusko, Jan Stiborek, Karel Bartoš, Lukáš Machlica in 2020.
- Who are Resistant AI's investors?
- Resistant AI's investors include Index Ventures, Notion Capital, Seedcamp, Credo Ventures, DTCP, GV (Google Ventures).
- How much funding has Resistant AI raised?
- Resistant AI has disclosed $37.5M raised across 2 of its 3 known rounds.
- Where is Resistant AI headquartered?
- Resistant AI is headquartered in Lewes, US.