Borys Musielak
InvestorManaging Partner at SMOK Ventures
Warsaw, Poland
Writes $50K – $500K checks · typically $250K
About
Borys Musielak is an engineer and entrepreneur with a product background. He previously founded the startup Filmaster, which was acquired by Samba TV in 2015, where he went on to build the company's European operations. He also co-founded Reaktor, a coworking space for startups, the ReaktorX acceleration program, and the Startup Poland think tank.
Invests in
AI & Machine LearningDeveloper Tools
Experience
- SMOK VenturesFounding Partnercurrent2019 — presentWarsaw, Masovian District, Poland
- SMOK AngelsFoundercurrent2025 — presentWarsaw, Mazowieckie, Poland
- JuoInvestorcurrent2024 — presentWrocław, Dolnośląskie, Poland
- 57hoursInvestorcurrent2023 — present
- Shen AISeed Investorcurrent2021 — present
- AuthologicSeed Investorcurrent2021 — presentWarsaw, Mazowieckie, Poland
- inStreamlySeed Investorcurrent2020 — present
- ReaktorXLimited Partnercurrent2019 — presentSan Francisco Bay Area
- ReaktorXCo-Founder2016 — 2019San Francisco Bay Area
- Startup PolandCo-Founder, Board Membercurrent2014 — presentWarsaw, Mazowieckie, Poland
- Dziki WarszawaAngel Investorcurrent2020 — present
- Dziki WarszawaMember of The Supervisory Board2020 — 2024Warsaw, Mazowieckie, Poland
- Reaktor WarsawCo-Founder2011 — 2020Warsaw, Poland
- Samba TVDirector of Product Management2015 — 2019Warsaw, Masovian District, Poland
- FilmasterFounder & CEO2009 — 2015Warsaw, Poland
- OSmediaFounder2005 — 2012
- Deutsche BankConsultant2007 — 2010London, United Kingdom
- Rule Financial GroupConsultant2007 — 2010
- Barclays CapitalConsultant2009London, United Kingdom
- coconet GroupTechnical Project Leader2006 — 2007Warsaw, Masovian District, Poland
Education
- Polish-Japanese Academy of Information TechnologyM.Sc., Computer Science - Software Engineering1999 — 2004
Skills & more
Early Stage InvestmentVenture CapitalEntrepreneurship99Start-ups99Adtech5Television8Software Development37Web Applications35Scrum11Predictive Analytics2Audience Engagement7Agile Methodologies13
+12 more
Business StrategyConsultingBusiness NetworkingPublic SpeakingPersonalized RecommendationsLinuxPythonJavaJava Enterprise EditionXMLPostgreSQLTwitterFrom Borys's professional profile.
Same school
Also attended Polish-Japanese Academy of Information Technology2
Shared employers
Also worked at Samba TV4
Also worked at Deutsche Bank422
Bill GurleyGeneral Partner Emeritus at BenchmarkFunmi GarrickFinance and Operations at Impact America FundGiuseppe IademarcoHead of Global Partnership at P101 VenturesJeppe ZinkPartner at NorthzoneDan MoreheadFounder & CEO at Pantera CapitalJavier BorreroSenior Director at Inveready Technology Investment Group
+ 416 more
Also worked at Barclays Capital184
David Clark GuillermoInvestments at Impact America FundThomas RubensInvestor at DN CapitalKerry WongHead of Investor Relations at Pantera CapitalJohn McCulloughInvestor at OpenView Venture PartnersVinnie McSweeneyInvestor at OpenView Venture PartnersKeith RobinsonSenior Advisor at Oxx
+ 178 more
Deals · 2
AlokaiLed round
via SMOK Ventures
SlickshiftLed round
via SMOK Ventures
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at SMOK Ventures
Dan Bragiel
Venture Partner at SMOK Ventures
Diana Koziarska
Managing Partner at SMOK Ventures
Oleksandr Yatsenko
Principal at SMOK Ventures
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Paul Bragiel
Co-founder at Golden Gate Ventures
Sonia Piórek
Venture Partner at SMOK Ventures
Tomasz Bednarski
Accounting & Finance at SMOK Ventures
Tomasz Koscielniak
Associate at SMOK Ventures
Tomasz Kościelniak
Associate at SMOK Ventures
Network6
Sonia PiórekScout
Venture Partner at SMOK Ventures
Diana Koziarska
Managing Partner at SMOK Ventures
Dmitry Smirnov
General Partner at Flint Capital
Jacek Łubiński
Investor at Market One Capital
Roman Novacek
Partner at Presto Ventures
Thijs Dijkman
General Partner at Peak
Investors connected to Borys in public investor directories — a warm-intro map.