Last updated 2026-07-20
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About
Konstantin Siniushin is an angel investor and managing partner at The Untitled Ventures, an early-stage venture capital firm based in Riga, Latvia. He focuses on pre-seed and seed-stage startups, particularly in the AgTech, deep tech, AI, and SaaS sectors. Siniushin has a track record of investing in Israeli startups, with GBooking in the business software sector being a notable portfolio company. He is also known as a Russian IT-serial entrepreneur.
Portfolio
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Investment activity
Portfolio by sector
Business Software1
Q&A
- What is Konstantin Siniushin's primary investment focus by sector?
- Konstantin Siniushin has invested in the Business Software sector, with GBooking as a notable portfolio company.
- What is Konstantin Siniushin's most recent investment activity?
- Konstantin Siniushin's most recent recorded investment was in November 2015.
- Can you name a key company in Konstantin Siniushin's portfolio?
- A key company in Konstantin Siniushin's portfolio is GBooking, which operates in appointment-scheduling software.
- What stage of funding does Konstantin Siniushin typically invest in?
- Konstantin Siniushin has participated in Seed stage funding rounds.
- What was the funding amount for GBooking?
- GBooking raised $1.5M in a round that Konstantin Siniushin participated in.