Johann Mattias Tamm

Equity holdings (3)

Companies in which this person holds a stake.

• JMT Invest OÜ100.00%

  Osaühing17321518since 2025-09-08
• ManPlan OÜ30.00%

  Osaühing17421740since 2026-01-26
• Targad Näod OÜ5.00%

  Osaühing14695224since 2023-09-02

Active roles (2)

• ManPlan OÜ — Juhatuse liige (since 2026-01-26)
• JMT Invest OÜ — Juhatuse liige (since 2025-09-08)

Co-directors (1)

People who currently serve on the same boards. Sorted by number of shared companies.

• Anton Valov1 shared companyManPlan OÜ

Co-investors (3)

People who hold equity in the same companies. Sorted by number of shared stakes.

• Anton Valov1 shared companyManPlan OÜ
• Margot Roose1 shared companyTargad Näod OÜ
• Tarmo Tamm1 shared companyTargad Näod OÜ

Data sources

• Estonian Business Register (RIK)updated daily