Martin Rehak

CEO & Founder at Resistant AI

📍 Czech Republic🔄 Updated September 2026💼 2 investments📅 10 years investing🗓 Last invested Jan 2017
Operator-angel🌍 Czech Republic
2
Total investments
1
Early stage
1
Mid stage
0
Late stage
10y
Years active

Portfolio

2 investments · sorted by recency
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Board Member
Jan 2017
We are shaping the future of broadcasting by leveraging versatile live video encoding and processing software and adopting technology such as JPEG2000, JPEG-XS, NDI and SMPTE 2110 to enable virtualized and cloud broadcast production. Comprimato virtualised software allows the use of unified COTS infrastructures to support flexible workflows, cost-effective scalability, and enhanced operational efficiency. Optimized GPU and CPU utilization accelerates real-time high-resolution video encoding and processing. Founded in 2013 and headquartered in Brno, Czech Republic, Comprimato’s video software is trusted by leading global media and entertainment companies - ESPN, NBA, Zayo, Warner Bros. Discovery and others.
Board member & Investor
2016
IP Fabric’s Automated Network Assurance Platform helps companies empower their network engineers to discover, verify, and document large scale enterprise networks within minutes. IP Fabric automates network infrastructure data collection and provides predefined verifications that highlight inconsistencies, misconfigurations and issues within enterprise networks. With experience and strength across Financial Services, Manufacturing, Logistics, Public Sector and more, we are ready to support businesses in addressing their key network management challenges with a new, analytically driven way of managing your network infrastructure. Using a unique network model and algorithms, the system reconstructs network state and simulates actual packet flows to detect critical violations, business-impacting inefficiencies, and verifies policy compliance. Based on graph theory of mathematics, native visualization of all network topologies and protocols provides unparalleled visibility, answering the question about how the network is running. Beautiful documentation and report outputs can be used directly as part of an existing process or managerial reporting requirements.
Experience · 5 entries
All (5)
Investments (2)
Founder (2)
Board (2)
2019
CEO & Founder
Feb 2019
Verify if your documents are real or fraudulent with AI. Resistant AI is the industry-leading document fraud detection system with more than 170M documents analyzed for fraud. Detect fraud in all types of documents: • Bank statements • Pay stubs • IDs • Utility bills • Tax forms • Etc. In all formats (PDFs, images). In all languages. Manually, with a simple drag and drop. Or automatically, using our API. And see if documents are fake, modified and fraudulent, in less than 20 seconds. Detect document fraud in: • Digital lending / Loan underwriting • Customer onboarding (KYC) • Merchant onboarding (KYB) • Tenant screening • Pre employment background checks • Insurance claims And achieve: • 90% less manual reviews • 60% faster fraud checks • 80% of documents approved instantly • 99% accuracy in document verdicts 170M+ docs analyzed. 8K+ fraud & compliance analysts using Resistant AI to detect fraud. 500+ detectors. 100+ patents. Digital Crime Fighter of the Year. Twice Winner of ACAMSPwC Hackathon. Backed by GV, Index Ventures, Credo Ventures, Seedcamp.
2017
Board Member
Jan 2017
We are shaping the future of broadcasting by leveraging versatile live video encoding and processing software and adopting technology such as JPEG2000, JPEG-XS, NDI and SMPTE 2110 to enable virtualized and cloud broadcast production. Comprimato virtualised software allows the use of unified COTS infrastructures to support flexible workflows, cost-effective scalability, and enhanced operational efficiency. Optimized GPU and CPU utilization accelerates real-time high-resolution video encoding and processing. Founded in 2013 and headquartered in Brno, Czech Republic, Comprimato’s video software is trusted by leading global media and entertainment companies - ESPN, NBA, Zayo, Warner Bros. Discovery and others.
2016
Board member & Investor
2016
IP Fabric’s Automated Network Assurance Platform helps companies empower their network engineers to discover, verify, and document large scale enterprise networks within minutes. IP Fabric automates network infrastructure data collection and provides predefined verifications that highlight inconsistencies, misconfigurations and issues within enterprise networks. With experience and strength across Financial Services, Manufacturing, Logistics, Public Sector and more, we are ready to support businesses in addressing their key network management challenges with a new, analytically driven way of managing your network infrastructure. Using a unique network model and algorithms, the system reconstructs network state and simulates actual packet flows to detect critical violations, business-impacting inefficiencies, and verifies policy compliance. Based on graph theory of mathematics, native visualization of all network topologies and protocols provides unparalleled visibility, answering the question about how the network is running. Beautiful documentation and report outputs can be used directly as part of an existing process or managerial reporting requirements.
2013
Principal Engineer/ R&D Site Director
Apr 2013
Cisco is the worldwide technology leader that is revolutionizing the way organizations connect and protect in the AI era. For more than 40 years, Cisco has securely connected the world. With its industry leading AI-powered solutions and services, Cisco enables its customers, partners and communities to unlock innovation, enhance productivity and strengthen digital resilience. With purpose at its core, Cisco remains committed to creating a more connected and inclusive future for all.
2009
Cognitive Security s.r.o.
CEO, Co-Founder & CTO
Aug 2009