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Business Location

Heart of Frankfurt am Main, Germany

TaunusTurm | Taunustor 1
60310 Frankfurt am Main | Germany

T: +49 (69) 87 00 44 66 (
T: +49 (69) 87 00 44 67 (LEISSNER LAW)
F: +49 (69) 87 00 44 68

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Got a Question?

Please find below short initial answers to some questions you might have. is offering a variety of services in the areas of Fund Advisory, Legal, Management Functions, and Aviation.

While is the platform for a variety of services, LEISSNER LAW as one of its business units is a law firm under German professional laws, providing high-end legal advice to corporate clients and selected individuals.

Mario Leißner is a lawyer (Rechtsanwalt) qualified to practice in Germany.

Mario Leißner has over 26 years of experience as a lawyer and advisor in the funds and real estate industry.

The aviation unit has been in business since 2010..

There obviously is no real connection between these topics – other than that Mario Leißner is both a lawyer and a private pilot.

Flying has been the greatest passion for a while and caused dealing with aviation as a business, too.