Ukrainian-founded · YC W23
Infisical
Infisical is a San Francisco security-infrastructure company co-founded by Ukrainian entrepreneur Vlad Matsiiako. It raised a $16 million Series A in 2025 after becoming cash-flow positive.
- Accelerator
- YC Winter 2023
- Stage
- Series A ↗
- Hiring
- Hiring ↗
- Founded
- 2022
- Location
- San Francisco
- Focus
- Security · Developer infrastructure
- Status
- Active
Why it’s hot
$16M Series A in June 2025 after reaching cash-flow positivity and adoption across major enterprise workloads.
Ukrainian connection
Co-founder and CEO Vlad Matsiiako publicly identifies as Ukrainian and is building Infisical from Silicon Valley with a global founding team.
Founders
Vlad Matsiiako
Co-founder and CEO · Ukrainian co-founder building security infrastructure in Silicon Valley.
LinkedIn profile ↗Tony Dang
Co-founder · Co-founded Infisical with Vlad Matsiiako and Maidul Islam.
LinkedIn profile ↗Maidul Islam
Co-founder · Co-founded Infisical’s open-source security platform.
LinkedIn profile ↗Sources
We use public primary sources where possible and identify exactly what each source supports.
- Infisical raises $16M Series A ↗Infisical · Supports: funding, momentum, cash-flow status, customers.
- Infisical company profile ↗Y Combinator · Supports: company, batch, founders, location, team size.
Last reviewed: August 7, 2026. Read the methodology.