What Resistant AI does

Resistant AI is a Prague-headquartered AI company that builds document fraud detection and transaction monitoring software for financial institutions, fintechs, and lenders. Its core products are Resistant Documents, an API that analyzes over 500 characteristics of any PDF or image to detect fake, tampered, or AI-generated documents in under 20 seconds; Resistant Transactions, a real-time transaction monitoring layer that deploys an ensemble of 80+ behavioral and anomaly detection models on top of clients' existing rules-based systems with sub-100ms latency; and Defence in Depth, which combines document, transaction, behavior, and identity signals across the customer lifecycle. The technology stack includes a few-shot document classifier that learns a legitimate issuer from 50-80 samples, graph/network analysis for mule and coordinated-activity detection, and explainable AI verdicts suitable for regulatory audit. The platform has verified 180M+ documents and is used by 8,000+ fraud and compliance analysts.

The company monetizes primarily through enterprise SaaS subscriptions for the Documents and Transactions APIs, with quote-based annual pricing, an AWS Marketplace listing, and a co-developed/co-delivered Transaction Forensics platform with Experian that launched in the UK in April 2026 covering Faster Payments, BACS, and CHAPS. Its go-to-market combines direct enterprise field sales, a developer-facing Documents API for self-serve integration, and channel partnerships (Experian, Lucinity, MVSI), supported by content-led demand generation through an education center, threat intelligence publishing, white papers, webinars, and an ROI calculator. Named customers include Payoneer, Close Brothers, Dun & Bradstreet, Habito, Finom, Verto, Lynk Capital, Planet42, Lemonade, Moneta Bank, Bank of Valletta, Raiffeisen Bank, Credit Agricole, Siemens, XTB, Capital on Tap, Plus500, and Holvi, spanning banks, payment firms, lenders, insurers, and marketplaces across the UK, EU, and North America.

Resistant AI is venture-backed with approximately $52.6M raised across a seed round (2020), a $16.6M Series A led by GV in 2021, an $11M Series A extension led by Notion Capital in 2023, an undisclosed strategic investment from Experian in July 2025, and a $25M Series B led by DTCP in October 2025. The company operates from Prague, London, Brussels, and New York with 101-250 employees, is SOC 2 and GDPR compliant, and was named among eight cybersecurity titans of Central and Eastern Europe and as a 'soon-to-be unicorn' in CEE by 22 regional VCs in 2026.

Name

Resistant AI

Legal name

Resistant AI s.r.o.

Website

https://resistant.ai

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

101–250 employees

Short description

Resistant AI builds AI-powered document fraud detection and transaction monitoring software for banks, fintechs, lenders, and insurers, using an ensemble of 80+ behavioral models and a 500+ characteristic document forensics engine across its Documents, Transactions, Defence in Depth, and Experian-co-developed Transaction Forensics products.

Ownership category

akta.pro rank

Product category

Fraud Detection and Financial Crime Prevention Software

NAICS

Software Publishers (513210), Security Systems Services (except Locksmiths) (561621), Investigation and Personal Background Check Services (561611)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Audit, Explainability & Accountability Tooling (traceability, reporting) (HDAAAKAL)

akta.pro secondary industry

Prompt Security & Injection Defense (HDAAAKAE)

Keywords

• Document fraud detection
• Transaction monitoring software
• AI fraud prevention
• KYC KYB automation
• Anti-money laundering solutions

Headquarters

HQ city

Prague

HQ country

Czechia

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Enterprise SaaS subscription (Documents): Recurring subscription to the Resistant Documents API for automated document fraud detection in any PDF or image file, with usage tied to document volume processed. Delivered via API and integrates into client onboarding/KYC/KYB workflows.
2. Enterprise SaaS subscription (Transactions): Recurring subscription to the Resistant Transactions product, an AI upgrade layer for clients' existing transaction monitoring systems. Priced per deployment with the 80+ model ensemble, supporting AML, APP fraud, BNPL, and mule detection use cases.
3. Co-developed platform revenue (Experian Transaction Forensics): Revenue share / co-delivery model with Experian for the joint Transaction Forensics platform launched in the UK, combining Experian data with Resistant AI's behavioral analytics. First major output from Experian's strategic investment (July 2025).
4. AWS Marketplace sales: Self-serve / marketplace channel via AWS Marketplace ('Buy on AWS') for cloud procurement by financial institution buyers.

Pricing tiers

Go-to-market motion4 records

Distribution channels4 records

Marketing channels11 records

Core offering

Resistant AI develops and sells AI-powered software that detects document fraud and transaction-level financial crime for banks, payment firms, lenders, and insurers. Its flagship products — Resistant Documents (AI document forensics analyzing 500+ characteristics in under 20 seconds) and Resistant Transactions (an 80-model ensemble layer for AML, APP fraud, and mule detection scoring in under 100ms) — are delivered as enterprise SaaS via API on top of clients' existing KYC/AML infrastructure. The Defence in Depth offering unifies document, transaction, behavior, and identity signals across the full customer lifecycle.

Product overview

Resistant AI provides an AI-powered fraud and financial crime prevention platform composed of three core products that work together across the customer lifecycle: Resistant Documents (AI-powered document fraud detection for any PDF or image, analyzing 500+ characteristics in under 20 seconds), Resistant Transactions (an AI-driven transaction monitoring layer with 80+ behavioral and anomaly models that augments existing systems without replacing them), and Defence in Depth (the integrated approach combining documents, transactions, behaviors, and identities for end-to-end fraud and fincrime prevention). In addition, the company co-developed Transaction Forensics with Experian — an AI-powered real-time bank-to-bank payment fraud detection platform — as the first major product emerging from Experian's July 2025 strategic investment. The platform serves 8,000+ fraud and compliance analysts, has verified 180,000,000+ documents, and is used by clients including Payoneer, Habito, Finom, Verto, Lynk Capital, Planet42, Close Brothers, Dun & Bradstreet, and others across banking, fintech, payments, lending, insurance, and real estate.

Differentiator

Problem solved

Functional benefit

Products and services

• Resistant Documents

Quantifiable outcome

• 3x more fraud detected and >90% fewer manual reviews for document fraud
• +9 more outcomes

Named customers18 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability10 records

Feature7 records

Partnerships

Five partnerships are on record, tiered technology integration partner, major go-to-market partner in fincrime, marketplace listing, indirect (via lucinity partnership) and industry / consortium participation.

• MVSItechnology integration partnerTechnology or Integration · 2 December 2025Partnered with MVSI to integrate Resistant AI's document fraud detection into MVSI's OnBoard AIQ™ onboarding platform. Integration expected in early 2026 to detect synthetic and tampered documents for faster, more secure customer onboarding at financial institutions.
• Lucinitymajor go-to-market partner in fincrimeStrategic or Co-development Partner · 14 November 2024Strategic partnership announced in November 2024 to deliver advanced AI-powered FinCrime prevention solutions. Lucinity's case management and investigation platform integrates Resistant AI's pattern recognition models to reduce false positives in AML transaction monitoring (cited research: ~90% false positive rate and $213B in annual AML compliance costs).
• Amazon Web Services (AWS)marketplace listingChannel Partner/ Reseller/ DistributorResistant AI products are available for purchase via the AWS Marketplace ('Buy on AWS' link in the website footer), enabling cloud-procurement based distribution to AWS-using financial institutions.
• Oracleindirect (via lucinity partnership)Technology or IntegrationResistant AI capabilities reach Oracle financial crime platform customers through the Lucinity partnership (which integrated Lucinity's AI-driven investigation technology into Oracle's financial crime platform in 2024).
• European deepfake detection startup ecosystemindustry / consortium participationOthersResistant AI named in 2025 industry coverage alongside Deepfake Detection Labs, AuthentiAI, VerifAI, and FraudShield as part of a European consortium of startups developing AI detection tools to combat deepfake-related fraud, with European regulators and international collaborations strengthening the effort.

Scale indicators16 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Sumsub: Sumsub offers KYC, KYB, document verification, and AML transaction monitoring, overlapping directly with Resistant AI's Documents and Transactions products. It is consistently listed alongside Resistant AI in buyer guides for digital onboarding fraud prevention.
• Feedzai: Feedzai is a directly comparable AI-based financial crime and transaction monitoring platform serving banks and fintechs. It competes head-to-head with Resistant AI's Resistant Transactions product for AML, APP fraud, and real-time payments use cases.
• ComplyAdvantage: ComplyAdvantage offers AI-driven AML, transaction monitoring, and KYC data, competing with Resistant AI's transaction monitoring and AI-based financial crime prevention offerings for banks and fintechs.
• Sardine: Sardine is a fraud and AML platform purpose-built for fintechs and digital banks, combining device intelligence, behavior, and document verification — a directly comparable newer-generation competitor to Resistant AI.
• Featurespace: Featurespace provides adaptive behavioral analytics for fraud and AML in payments and banking, directly competing with Resistant AI's ensemble transaction monitoring approach in cards, Faster Payments, and APP fraud.
• Jumio: Jumio is an established identity verification and document fraud detection vendor serving financial institutions and fintechs, competing in the same document forensics and KYC onboarding category as Resistant AI.
• Unit21: Unit21 provides transaction monitoring, fraud detection, and AML compliance infrastructure for fintechs and banks, and is frequently listed alongside Resistant AI in digital onboarding and fraud prevention buyer's guides.
• Onfido: Onfido provides AI-powered document verification and identity verification for onboarding, directly competing with Resistant AI's Resistant Documents product in banks, fintechs, and lenders.
• Veriff: Veriff is a document and identity verification vendor serving fintechs and financial institutions, overlapping with Resistant AI's document forensics product for onboarding and KYC use cases.

Emerging players

• Lucinity: Lucinity is a FinCrime case management and AML investigation platform that is both a partner (integrating Resistant AI's models) and adjacent competitor in the AML workflow space; the partnership gives Lucinity partial overlap with Resistant AI's transaction analytics layer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/resistantai
• LinkedInlinkedin.com/company/resistant-ai

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds5 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Resistant AI