Sebastian Pietrowski
Co-Founder, Chief Technology Officer & Technology Executive @ merXu
Sebastian Pietrowski is a pre-seed investor at merXu focused on SaaS and FinTech. Sebastian Pietrowski is the Co-Founder, Chief Technology Officer and Technology Executive of merXu.
- Total investments:
- 1
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Sebastian Pietrowski invests in
Stages Sebastian Pietrowski invests in
Countries Sebastian Pietrowski invests in
Investment Focus
Industry
- SaaS 1 (100%)
- FinTech 1 (100%)
- Business Process Automation (BPA) 1 (100%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
sunbay.io
|
Sunbay automates invoice collections and order-to-cash operations for SMBs. It connects to your existing systems (like Xero, QuickBooks, or Fakturownia) and handles reminders, escalations, and collections automatically — without changing your tech stack. | $635K / Pre-Seed / Jun 11, 2026 |
Co-Investors
About merXu
merXu is an online trading platform for companies from the CEE region operating in the B2B sector for small, medium-sized & large entities.
merXu Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Piotr Nowjalis
CFO
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Przemysław Budkowski
Co-Founder & Chief Executive Officer
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Sebastian Pietrowski
Co-Founder, Chief Technology Officer & Technology Executive
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Tomasz Nowak
Co-Founder
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Vaclav Liska
Area Manager
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FAQ
What does Sebastian Pietrowski invest in?
Sebastian Pietrowski invests primarily in SaaS, FinTech and Business Process Automation (BPA) startups, most often at Pre-Seed stage. Most of the 1 investments tracked by Shizune back companies in Poland. The Investment Focus section breaks down every industry, stage and country in the portfolio.
When did Sebastian Pietrowski last invest?
The most recent investment recorded for Sebastian Pietrowski closed in Jun 2026. Shizune tracks 1 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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