Marcin Kleczynski – Startup Investor Profile

Marcin Kleczynski is the CEO and Co-Founder of Malwarebytes, a leading provider of cybersecurity solutions. His investment thesis involves strategic guidance to accelerate growth in both the Consumer and Corporate business lines. He focuses on endpoint protection and response software, anti-virus and anti-malware software, and more. Marcin Kleczynski’s investments range from $30 million, and he collaborates with Vector Capital to drive operational separation and growth strategies. His geographical preference is global, with a focus on accelerating growth in the Consumer business and targeting attractive customer segments in the Corporate business. Marcin’s professional career includes being named CEO of the Year in 2017 and inspiring the IT security professionals of the future. His collaboration style involves executing high-velocity, digital-first, and data-driven marketing programs to reach and retain corporate customers.

Location: Santa Clara, CA

Country: Poland

Investment Regions:

Investment Stages: pre-seed, seed

Website: www.malwarebytes.org

AI Reasoning: I searched for public evidence of Marcin Kleczynski making personal investments or participating in startup funding rounds but found no verifiable reports or dates of investments beyond his role as CEO of Malwarebytes and company-related funding (e.g., Vector Capital transaction in 2022). No documented individual investments with dates and startup names were found to assess recency. Therefore default to not-found.

Low Activity – Only known angel investments more than 12 months ago.

Active – Known angel investments between the last 12 and 6 months.

Very Active – Known angel investments in the last 6 months.