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STEMAS AG

stemas.de Direct investor

STEMAS AG acquires majority stakes in mid-sized industrial companies, focusing on succession situations, companies needing restructuring, and corporate spin-offs. It holds its participations long-term and supports them with strategy and financing within its group.

STEMAS AG is a private equity firm headquartered in München, Germany. It invests directly in companies, at buyout, in Elektronik/Elektrotechnik, Maschinen- und Anlagenbau and brandschutz. Its stated cheque size is Mehrheitlich – mindestens 51%, möglichst 75%.

“Die Stemas AG beteiligt sich an mittelständischen Industrieunternehmen. Potentielle Beteiligungsunternehmen sind Firmen bei denen die Nachfolgeregelung ungeklärt ist, Unternehmen bei denen Sanierungsbedarf besteht oder Ausgliederungen aus Konzernen.”

— STEMAS AG, own website
Layer
Direct investor
Type
Private equity
Stage
Buyout
Headquarters
München, Germany
Sectors
Elektronik/Elektrotechnik, Maschinen- und Anlagenbau, Brandschutz
Cheque size
Mehrheitlich – mindestens 51%, möglichst 75%

Team, as STEMAS AG publishes it

  • Stefan Hasper Vorstand
  • Thomas Müsch Vorstand
  • Dr. Achim Johannis Aufsichtsrat
  • Helena Vonholdt Aufsichtsrat
  • Dirk Ostheimer Aufsichtsrat

Names and roles exactly as listed on stemas.de. Nothing else about these people is recorded.

Where this comes from

Every fact above was read from a page STEMAS AG publishes itself. Nothing is taken from third-party databases. Investment activity (deals, co-investors) is not yet recorded.

  • https://stemas.de/name, is_investor, layer, type, hq_country, hq_city, stage_min, stage_max, sectors, cheque_size, thesis_quote, description, people, status

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Record 16407 · added 2026-10-26 · link last verified 2026-10-26 · confidence high

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