Where does Borys Musielak work?

Borys Musielak is Managing Partner at SMOK Ventures.

What does Borys Musielak invest in?

Borys Musielak invests in AI & Machine Learning, Developer Tools.

What check size does Borys Musielak write?

Borys Musielak typically writes checks of $50K – $500K.

What companies has Borys Musielak invested in?

Investments tracked here include Alokai, Authologic, inStreamly, Masthead Data, Primio, Slickshift, SLS.

Where did Borys Musielak go to school?

Borys Musielak studied at Polish-Japanese Academy of Information Technology (M.Sc., Computer Science - Software Engineering).

Does Borys Musielak lead rounds?

Yes — Borys Musielak has led 7 tracked investments.

Borys Musielak

Investor

Managing 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.

Contact· self-published, not guessed

b•••@smok.vcreveal

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
empolis PolandSoftware Engineer2005 — 2006Warsaw, Masovian District, Poland
eo NetworksSoftware Engineer2002 — 2004Warsaw, Mazowieckie, Poland

Skills & more

Early Stage InvestmentVenture CapitalEntrepreneurship99Start-ups99Adtech5Television8Software Development37Web Applications35Scrum11Predictive Analytics2Audience Engagement7Agile Methodologies13

+12 more

Business StrategyConsultingBusiness NetworkingPublic SpeakingPersonalized RecommendationsLinuxPythonJavaJava Enterprise EditionXMLPostgreSQLTwitter

From Borys's professional profile.

Deals · 2

SlickshiftLed round

via SMOK Ventures · filed Feb 2026

AlokaiLed round

via SMOK Ventures

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Led

AuthologicinStreamlyMasthead DataPrimioSLS

Per the firm's website.

Colleagues at SMOK Ventures

Dan Bragiel

Venture Partner at SMOK Ventures

Diana Koziarska

Managing Partner at SMOK Ventures

Oleksandr Yatsenko

Principal at SMOK Ventures

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.

Frequently asked questions

Who is Borys Musielak?: 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.
Where does Borys Musielak work?: Borys Musielak is Managing Partner at SMOK Ventures.
What does Borys Musielak invest in?: Borys Musielak invests in AI & Machine Learning, Developer Tools.
What check size does Borys Musielak write?: Borys Musielak typically writes checks of $50K – $500K.
What companies has Borys Musielak invested in?: Investments tracked here include Alokai, Authologic, inStreamly, Masthead Data, Primio, Slickshift, SLS.
Where did Borys Musielak go to school?: Borys Musielak studied at Polish-Japanese Academy of Information Technology (M.Sc., Computer Science - Software Engineering).
Does Borys Musielak lead rounds?: Yes — Borys Musielak has led 7 tracked investments.