# Borys Musielak

> Borys Musielak is a seed investor at ReaktorX backing Software and Artificial Intelligence. See 21 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [ReaktorX](https://shizune.co/investors/profile/reaktorx)
- Location: Warsaw, Poland
- Total investments: 21
- Last investment: Apr 2026
- Lead investor: 81%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/musielak
- X (Twitter): http://twitter.com/michuk
- Website: http://borys.musielak.eu
- Facebook: http://www.facebook.com/michuk

Borys Musielak is a seed investor at ReaktorX in Warsaw focused on Software and Artificial Intelligence. Borys is a founding partner at SMOK Ventures, a VC fund bridging Silicon Valley to Poland and CEE.Previously he co-founded Filmaster, a personalization service acquired in 2015 by Samba TV where he is currently building the European branch.He also runs ReaktorWarsaw, a hub for startups to work, collaborate and network, and co-founded StartupPoland, a foundation that became a voice of Polish startups.Prior to founding his own projects, Borys worked as a consultant, programmer and team lead for both for startups and large corporations in Poland (empolis, eo Networks), Germany (CoCoNet) and United Kingdom (Rule Financial, Deutsche Bank).He graduated with distinction at Polish-Japanese Institute of Information Technology with a degree in software engineering.Listed as one of 50 most creative Polish entrepreneurs by BRIEF. Mentor at Founder Institute Warsaw. Film buff. Thibodeau-era Bulls fanboy.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 7 | 33% |
| Artificial Intelligence | 5 | 24% |
| Information Technology | 3 | 14% |
| Apps | 2 | 10% |
| SaaS | 2 | 10% |

45 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 10 | 48% |
| Pre-Seed | 8 | 38% |
| Venture - Series Unknown | 1 | 5% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Poland | 8 | 38% |
| United States | 4 | 19% |
| Latvia | 1 | 5% |
| Sweden | 1 | 5% |
| Estonia | 1 | 5% |

6 countries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Primio | Primio is an AI-powered platform that generates production-ready native mobile apps from natural language prompts. It outputs real Flutter/Dart code that compiles to native iOS and Android with pixel-perfect rendering and up to 120fps performance. The platform covers the full lifecycle from idea to app store submission, including cloud builds,live preview, and iterative editing. Built for app studios and serious builders who need to ship native apps fast. |  | Pre-Seed | Apr 01, 2026 |  |
| Mos Health | Mos Health creates a digital health platform that blends an AI-powered application with its own line of supplements. The Health platform uses artificial intelligence to create personalized health recommendations, supplement routines, and wellness advice as per the individual patient. | $1.1M | Pre-Seed | Jan 30, 2026 |  |
| Juo | Juo builds the future of subscription technology. | $4.6M | Seed | Nov 25, 2025 |  |
| Proteine Resources | Proteine Resources is dedicated to transforming the use of insects into sustainable, high-value products across various industries. Their flagship offering is a premium insect protein with a 64% protein content in its dry mass, distinguished by its medical properties such as unique amino and fatty acid profiles, and a comprehensive blend ofvitamins and nutrients. This product is produced with a 50% cost reduction compared to competitors, highlighting its production efficiency and scalability.The company's diverse product line serves the poultry feed, pet food, and veterinary supplement industries, significantly improving animal health, reducing mortality, and enhancing physical appearance and well-being. Looking ahead, Proteine Resources is exploring the therapeutic potential of bioactive compounds found in insects—including serotonin, melatonin, and others—to innovate in the fields of cosmetics and healthcare, promising high bioavailability and specific health benefits. | $11M | Venture - Series Unknown | Jun 24, 2025 |  |
| Darvin | Darvin provides platform leveraging AI to help mobile developers build and deploy apps for app stores more quickly and efficiently. |  | Seed | Apr 24, 2025 |  |
| Darvin | Darvin provides platform leveraging AI to help mobile developers build and deploy apps for app stores more quickly and efficiently. |  | Pre-Seed | Apr 24, 2025 |  |
| LetsData | LetsData is an AI-power radar against disinformation. LetsData provides real-time media and social media monitoring in over 50 countries, empowering state agencies, businesses, and civil societies to proactively navigate risks and seize opportunities in the face of disinformation. | $1.6M | Pre-Seed | Jan 15, 2025 |  |
| Proteine Resources | Proteine Resources is dedicated to transforming the use of insects into sustainable, high-value products across various industries. Their flagship offering is a premium insect protein with a 64% protein content in its dry mass, distinguished by its medical properties such as unique amino and fatty acid profiles, and a comprehensive blend ofvitamins and nutrients. This product is produced with a 50% cost reduction compared to competitors, highlighting its production efficiency and scalability.The company's diverse product line serves the poultry feed, pet food, and veterinary supplement industries, significantly improving animal health, reducing mortality, and enhancing physical appearance and well-being. Looking ahead, Proteine Resources is exploring the therapeutic potential of bioactive compounds found in insects—including serotonin, melatonin, and others—to innovate in the fields of cosmetics and healthcare, promising high bioavailability and specific health benefits. | $1.5M | Venture - Series Unknown | Oct 01, 2024 |  |
| Juo | Juo builds the future of subscription technology. |  | Seed | Aug 20, 2024 |  |
| Fams | Supportive family relationship co-pilot.Edutainment parenting app for building conscious relationships in familiesAny situations under your conscious control with Fams. Learn how to react in a healthy way without negative effects, no matter what. Fams support you in a vital journey to archiving parenting skills & dream goals throughpersonal step-by-step programs in a playful way: interactive comics-stories based on daily-life family situations.https://drive.google.com/file/d/1_Y8NZ6rJRMQRtjbt8JR5WF89rmo6WWlf/view | $400K | Pre-Seed | Feb 26, 2024 |  |

10 of 21 investments shown.

## Co-investors
- [Movens Capital](https://shizune.co/investors/profile/movens-capital) — VC Fund, 5 deals together
- [Bitspiration Booster](https://shizune.co/investors/profile/bitspiration-news) — VC Fund, 4 deals together
- [LT Capital](https://shizune.co/investors/profile/lt-capital-5861) — VC Fund, 3 deals together
- [Next Road Ventures](https://shizune.co/investors/profile/next-road-ventures) — VC Fund, 3 deals together
- [Verge HealthTech Fund](https://shizune.co/investors/profile/verge-healthtech-fund) — VC Fund, 2 deals together
- [1991 Accelerator](https://shizune.co/investors/profile/1991-accelerator) — VC Fund, 1 deal together

## About ReaktorX

VC Fund · Warsaw, Poland

ReaktorX is a pre-acceleration program for early stage businesses. ReaktorX serves as a business accelerator for people who are working or have no time or acumen for creating a business from scratch and want to connect with like-minded professionals.

1 contacts available at ReaktorX.

| Name | Title | Profile |
| --- | --- | --- |
| Borys Musielak | Co-Founder | https://shizune.co/investors/profile/borys-musielak |

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## FAQ

### What does Borys Musielak invest in?

Borys Musielak invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Seed and Pre-Seed stage. Most of the 21 investments tracked by Shizune back companies in Poland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Borys Musielak last invest?

The most recent investment recorded for Borys Musielak closed in Apr 2026. Shizune tracks 21 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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