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Roi Menzin

Roi Menzin

Co-founder and operator building early-stage startups

Roi_Menzin
United States
Joined February 2026
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Summary

Early-stage founder and operator: Roi Menzin is repeatedly listed as a co-founder and leadership operator across multiple startups, holding founder/CEO roles (Partysphere, Biguard) and later a Coโ€‘Founder & COO role at a stealth startup. rocketreach
Worked on account security and recovery services: Public company records and social channels identify Biguard (Biguard Solutions) as a venture associated with Menzin that offers security and hacked-account restoration services. co+2
Active in media and interviews: Menzin has appeared in recorded media (YouTube interviews and podcasts) discussing his work and startups, indicating engagement with public-facing storytelling around product, security and entrepreneurship. youtube+2
Student of computer science and economics: Public profiles list concurrent undergraduate study at The Hebrew University of Jerusalem in Computer Science and Economics beginning in 2023, showing a combined technical and economic education background. rocketreach

Work

Education