Founder of Filmaster and co-founder of VC fund SMOK Ventures, Borys also spearheads the SMOK Angels network. A former coder turned investor, he has nurtured dozens of early-stage Polish startups.
Borys is known for community building (e.g. Reaktor Warsaw) and has invested in startups across AI, gaming, and software. He co-leads an angel fund, so he straddles angel and VC roles.
Associated startups: Included via SMOK portfolio (e.g. Spin.ai, Incentive Games) and through SMOK Angels network.
Warsaw, Poland
Angel Investor
Pre-Seed to Series A
/poland/angel-investor/borys-musielak
Generative AI copilot for 3D game development and visualization workflows, with a strong focus on Unreal Engine production pipelines. The platform helps teams create assets and scene components faster while reducing technical bottlenecks for creators.
Poland's first MarTech-focused accelerator by KnowledgeHub and GroupM, focusing on AI in marketing, adtech, and influencer platforms. Offers workshops, mentoring, pilot client access, and sales support.
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Coding challenge and networking event at Google for Startups Campus in Warsaw, designed for developers and technical founders. Useful for recruiting, team formation, and early-stage product validation in software and AI-focused projects.
DeepL is a Cologne-based AI translation company founded in 2017 by CEO Jarosław Kutylowski. Renowned for its neural machine translation quality, DeepL quickly surpassed competitors in accuracy and nuance. The company’s cloud platform serves over 100,000 business and government customers worldwide, including enterprises like Zendesk and Deutsche Bahn. DeepL achieved unicorn status in 2023 with a €1 billion valuation and continued to grow explosively – by early 2025 it had raised $410 million (led by investors like Index Ventures and Atomico) and reached a $2 billion valuation. In late 2025, reports emerged that DeepL is considering an IPO amid surging revenue, which doubled year-on-year to $185 million in 2024. DeepL’s core product is an AI-driven translator supporting 30+ languages, used for real-time document and content translation. The firm also launched DeepL Write to improve monolingual writing and an AI Agent to automate business tasks. As of 2025, DeepL is recognized as one of Europe’s premier AI startups, combining cutting-edge NLP research with a fast-growing SaaS business. The company’s success – valued at $2 billion and poised for a public offering – underscores Europe’s strength in deep-tech innovation.
A decacorn AI audio company co-founded by Polish-raised engineers, focusing on AI-powered voice technology and generation.
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