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AQTON SE

Family office

Bad Homburg vor der Höhe

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Investment thesis

AQTON SE is the personal holding and investment vehicle of fourth-generation entrepreneur Stefan Quandt. It follows a long-term investment philosophy across all of its holdings rather than short-term returns. Its current stakes span the automotive industry, digital security and identity protection, photovoltaics and smart grid technology, and ratings. As a family-controlled investment company, it emphasizes durable ownership and strategic, patient capital in established industrial and technology sectors.

Source: firm website, verified Aug 3, 2026.

HQ
Bad Homburg vor der Höhe, DE
Tracked investments
1

What they invest in

from 1 of 1 portfolio companies

Cleantech ×1Energy ×1New Materials ×1

HQs:Germany×1

Investments · 1 tracked

founders shown can be your intro path
Heliatek GmbHheliatek.cominSep 2016 · $90M

Heliatek develops and manufactures HeliaSol, an IEC-certified organic photovoltaic solar film that is lightweight, flexible, and adheres to building surfaces and other structures without drilling.

CleantechEnergyNew MaterialsDresden, DE

Karl Leo(Gründungsmitglied)Martin Pfeiffer(Gründungsmitglied)Bert Männig(Gründungsmitglied)Peter Bäuerle(Gründungsmitglied)Jens Drechsel(Gründungsmitglied)Harald Eggers(Gründungsmitglied)

Co-investorseCAPITAL ENTREPRENEURIAL PARTNERSENGIE New VenturesFuture Energy VenturesSIB Innovations- und BeteiligungsgesellschaftBNP ParibasBosch+5 more

Frequently asked questions

What sectors does AQTON SE focus on?
AQTON SE focuses on Cleantech, Cybersecurity, Energy, Mobility & Transportation, Sector Agnostic.
Where is AQTON SE located?
AQTON SE is headquartered in Bad Homburg vor der Höhe, DE.

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