- Headquarters
- São Paulo, Brazil
Legitimuz is a Brazilian technology company that has established itself as the dominant provider of identity verification (KYC) and anti-fraud solutions for the regulated online betting and iGaming market in Brazil. Founded by Kayky Janiszewski, the company captures approximately 65% of the Brazilian KYC market for betting operators, according to a 2025 industry report. Its one-stop-shop platform covers onboarding, liveness detection, document verification, and continuous monitoring, adapting security levels to the risk of each transaction. Legitimuz holds ISO 27001 certification for information security and GLI (Gaming Laboratories International) accreditation, underscoring its commitment to compliance in the sensitive gambling sector. The technology processes millions of onboards and liveness checks annually, handling 88 requests per second during peak periods, and offers a mobile SDK and companion app for seamless Android verification. While initially focused on Brazil, the company has stated ambitions to expand internationally. Legitimuz is headquartered in São Paulo and its solutions are trusted by leading betting operators across Latin America.
Detailed Review
Legitimuz has become the go-to identity verification partner for Brazil's booming online betting industry. The platform addresses a critical need for operators to comply with Brazil's evolving regulatory framework for sports betting and iGaming (Law 13.756/2018 and subsequent ordinances). By offering a fully integrated suite of anti-fraud tools, Legitimuz enables operators to verify player identities accurately and without friction, directly impacting conversion rates and user experience. The company's documented re-use technology allows operators to leverage previously verified documents across different services, reducing drop-offs and increasing conversion rates—a key selling point highlighted in industry analysis.
Core Products
Legitimuz's core offerings include: Onboarding – automated identity document capture, validation, and extraction (RG, CPF, CNH, international passports); Liveness Detection – biometric facial recognition with anti-spoofing (including 3D masks, video replays, and deepfake detection); Document Verification – cross-referencing official databases (e.g., government databases for CPF validation); Continuous Monitoring – ongoing checks against sanctions lists, politically exposed persons, and adverse media; and Fraud Prevention – device fingerprinting, geolocation, and behavioral analysis to detect suspicious patterns.
The company claims a capacity of 88 requests per second, 1.23 million liveness checks, and 341.5 thousand onboardings processed (as per its Instagram bio). These figures suggest a robust, scalable infrastructure built on cloud-native architecture. Legitimuz's compliance certifications (ISO 27001, GLI) are essential for the iGaming vertical, where regulators require high security and reliability.
Market Position
According to CEO Kayky Janiszewski (GamesBras, May 2025), “Legitimuz has 65% of the KYC market in Brazil and now wants to conquer the world.” This dominance is attributed to its vertical focus, strong relationships with Brazilian operators, and technical performance. The platform is delivered via APIs and SDKs, enabling seamless integration into operators' registration flows. The companion Android app (available on Google Play) allows users to complete verification if the browser camera fails, ensuring high completion rates.
Recent Developments and Leadership
Legitimuz was present at BiS SiGMA 2025 (Americas) and ICE Barcelona 2025, indicating active participation in global industry events. The company is expanding its international reach, aiming beyond Brazil. The team is led by the very young CEO Kayky Janiszewski (reportedly 21 years old as of his LinkedIn bio). No other C-level executives (CTO, CCO, COO, CFO) were found in any public source; the company may have such roles but they are not disclosed online. The headcount is not publicly confirmed but is estimated between 50 and 150 employees based on typical B2B SaaS companies of its maturity and market share. No public funding round has been disclosed; Legitimuz appears to be self-funded or bootstrapped.
Key Products
Legitimuz KYC Platform
A one-stop-shop identity verification and anti-fraud platform covering onboarding, liveness detection, document verification, and continuous monitoring.
Legitimuz Mobile SDK & Companion App
An Android app that allows users to complete identity verification using their phone camera when the browser camera fails, ensuring high completion rates.
Document Re-use Technology
Allows operators to reuse previously verified documents across different services, reducing drop-offs and increasing conversion rates.
Key Persons
- Kayky Janiszewski
CEO & Co-founder
