Karol Szubstarski is a Partner at OTB Ventures, whose known portfolio counts 31 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Partner at OTB Ventures, whose known portfolio counts 31 companies
- ICEYE
- ATMOS Space Cargo
- Hydrosat
- FintechOS
- Fractory
- Apheris
- SEMRON
- Tytan Technologies
- SPREAD AI
- akirolabs
- ClearSpace
- Settlemint
- and 19 more
Investor Profile
Founders in the listed sectors AI, FinTech, Hardware and SaaS, and focus areas Aerospace, Analytics, Asset Management and Communications Infrastructure fall inside that listing.
OTB Ventures appears in Seed, Series A and Series B rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Karol Szubstarski is worth approaching.
Colleagues at OTB Ventures
Katarzyna Zwolanowska
Partner & COO w OTB Ventures
Warsaw, Poland
Alicja Glinka
Venture Partner
Warsaw, Poland
Adam Niewinski
Co-Founder & Managing Partner
Poland
Wojtek Walniczek
Partner
Warsaw, Poland
Marcin Hejka
Co-Founder & General Partner
Warsaw, Poland
Estelle Godard
Vice President
Luxembourg
Jeremy Teboul
Partner
Luxembourg
Frequently asked questions
Who is Karol Szubstarski?
Karol Szubstarski is a venture capital investor based in Warsaw, Masovian, Poland, listed as Partner at OTB Ventures. The known portfolio of that firm counts 31 companies. That portfolio belongs to the firm, not to Karol Szubstarski personally.
What does Karol Szubstarski invest in?
Listed sectors include AI, FinTech, Hardware and SaaS; listed focus areas include Aerospace, Analytics, Asset Management and Communications Infrastructure. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Karol Szubstarski invest at?
OTB Ventures appears in Seed, Series A and Series B rounds across its known deals, and Karol Szubstarski is listed there as Partner. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Karol Szubstarski listed at?
Karol Szubstarski is listed as Partner at OTB Ventures. 7 other people in the database share a firm with Karol Szubstarski.
How do I contact Karol Szubstarski?
An email address, a phone number and a LinkedIn page are on file for Karol Szubstarski. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal