About AVIONMAR

(Our Story)

AVIONMAR business aviation

(About)

Two decades pairing banking discipline with deep business-aviation expertise.

AVIONMAR is a boutique business aviation broker based in Vienna. Founded by Stefan Duller in 2010, the firm grew out of a banking career — and that discipline still shapes how we work: rigorous analysis, careful structuring and absolute discretion on every mandate.

We acquire, sell and finance business jets for a worldwide clientele, drawing on an extensive network of operators, OEMs and brokers. As a member of the EBAA, we operate to the standards of the European business aviation community — and as a boutique, we give every transaction the senior attention it deserves.

Every mandate is led personally and handled with complete discretion. There are no junior handoffs and no conflicting house positions to work around — just senior attention on the details that move a transaction forward.

From the first valuation to final delivery, we sit on one side of the table — yours. That clarity is what brings clients back to us, transaction after transaction.

2010

Founded

20+

Years in Aviation

Global

Broker Network

EBAA

Member

(From the Founder)

A jet transaction is built on trust. We represent one side of the table our client’s and protect it with the same care we would our own.

Stefan Duller — Founder & CEO

Our Team

The thoughtful, talented people behind the work — bringing our ideas, transactions and experiences to life.

  • (01)DirectionCEO
    Stefan Duller, CEO at AVIONMAR

    Stefan Duller

  • (02)Marketing & FinanceHead of Marketing & Finance
    Nicole Duller, Head of Marketing & Finance at AVIONMAR

    Nicole Duller

  • (03)SalesSales Director
    Markus Bancalari, Sales Director at AVIONMAR

    Markus Bancalari

  • (04)AdministrationHead of Administration and Sales Support
    Anna Widowitz-Stern, Head of Administration and Sales Support at AVIONMAR

    Anna Widowitz-Stern

  • (05)LegalLegal Counsel
    Stefan Hösle, Legal Counsel at AVIONMAR

    Stefan Hösle

  • (06)AdministrationAdministration and Sales Support
    Ziyun Zhong, Administration and Sales Support at AVIONMAR

    Ziyun Zhong

(The Group)

Part of the AVIONMAR Group

Beyond business aviation, AVIONMAR Holding spans a focused group of companies founded by Stefan Duller — from aircraft financing to a long-term real estate portfolio across Austria.

Jet Lease Finance
Aviation Finance01

Jet Lease Finance

AVIONMAR is a shareholder in Jet Lease Finance, a company specialized in financing business aircraft, providing tailored, asset-based financing solutions for business jets.

Ruhiger Wohnen
Real Estate02

Ruhiger Wohnen

Wholly owned by AVIONMAR Holding and founded by Stefan Duller, the Ruhiger Wohnen real estate companies build a long-term portfolio of premium residential complexes, luxury holiday apartments, Alpine chalets and select prime-location retail properties.

Lake View – Premium Apartments
Hospitality03

Lake View – Premium Apartments

Situated at the famous Wörthersee in southern Austria, near the Italian border, Lake View – Premium Apartments offers fully equipped, high-end apartments designed for unforgettable and relaxing holidays.

(Get in Touch)

Let's discuss your next aircraft

Share your requirements and we'll respond within one business day with tailored options and next steps.

Start a Conversation