Firlej Kastory

Firlej Kastory is a private investment firm established in 2019 and based in Warsaw, Poland. The firm specializes in venture capital investments, focusing on global technology companies. Its investment strategy encompasses various sectors, including energy, risk governance, climate, financial services, and healthcare. By targeting these areas, Firlej Kastory aims to support innovative projects and contribute to advancements in technology and sustainability.

Mikolaj Firlej

Managing Partner

4 past transactions

Nethone

Series A in 2021
Nethone is a risk detection company that specializes in protecting the entire user journey for online merchants, spanning from onboarding to post-payment. Founded in 2016 by a team of security experts, data scientists, and developers within Daftcode, Nethone employs Know Your User (KYU) profiling technology and AI-powered tools to effectively screen users, identifying and blocking fraudulent activities without hindering genuine users. The company's software monitors over 100 types of fraud tactics, providing actionable recommendations in real time. With a modular approach, Nethone addresses various forms of fraud, including account takeovers and bot attacks, while enhancing client understanding of user behavior through a proprietary Profiler that analyzes over 5000 attributes. Nethone has established partnerships with more than 50 global companies across e-commerce, digital goods, and financial sectors. Since joining the Mangopay Group in 2022, Nethone has garnered recognition as one of Europe's fastest-growing companies, particularly standing out in the Fintech category. The company's solutions aim to reduce rejection rates and manual review costs while maintaining a seamless user experience.

Molecule.one

Seed Round in 2021
Molecule One is a biotechnology company that specializes in artificial intelligence-driven software for chemical synthesis. Its m1 platform enhances the preclinical pipeline by providing tools that assist bench chemists, data scientists, and computational chemists in their work. The software is designed to predict the likelihood of synthesizing novel small molecules, streamlining the synthesis design process by automating significant portions of manual tasks. By leveraging vast amounts of data that exceed human processing capabilities, Molecule One enables clients to concentrate on drug candidates with lower synthesis costs and a higher probability of success.

Clausematch

Non Equity Assistance in 2020
Clausematch Limited is a regulatory technology company based in London, United Kingdom, that specializes in providing cloud-based solutions for heavily regulated organizations. Founded in 2012, Clausematch develops an AI-powered platform that facilitates end-to-end policy management and regulatory compliance. The platform streamlines compliance workflows by enabling departments such as compliance, legal, finance, operations, and risk to automate impact assessments and manage regulatory changes efficiently. It offers tools that allow organizations to monitor the progress of negotiations and assess agreement matching scores with counterparts. By standardizing and automating processes, Clausematch helps clients reduce costs, accelerate implementation, and ensure compliance with regulatory obligations.

BlackWall

Seed Round in 2020
Botguard OÜ specializes in cloud-based website protection software that safeguards websites from malicious bots, crawlers, scrapers, and hacker attacks. Established in 2019 and headquartered in Tallinn, Estonia, with an additional office in Haifa, Israel, the company offers a platform that analyzes visitor behavior and creates digital fingerprints, storing the results in a database. This technology allows Botguard to block harmful bot traffic in real-time while ensuring that legitimate users, search engines, and affiliate bots have unrestricted access to the website. By doing so, Botguard enables its clients to protect their businesses from threats such as hackers, spammers, content theft, and competitive scraping.
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