Markus Bitzer
Managing DirectorDiplom-Finanzwirt (FH/Zoll)
22 years of experience in customs, 17 of them with the German customs administration and 15 with the Customs Investigation Service (Zollfahndung) in various areas of investigation. Since 2021 he has advised companies, law firms and tax advisers on customs law and export control. Regular speaker and lecturer.
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Heiner Neuhaus
Managing DirectorRechtsanwalt (German lawyer)
Rechtsanwalt and managing director at mainfort Rechtsanwälte in Frankfurt am Main since 2010, and also at BITZER MAINFORT since 2024. His main areas are tax compliance, tax criminal law, and commercial and company law.
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Werner Wingender
Managing DirectorSteuerberater (German tax adviser)Diplom-Finanzwirt
Former tax investigator with 49 years of professional experience in the tax administration in tax law and tax criminal law, 19 of them with the tax investigation service in Bonn (Steuerfahndung Bonn).
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Frank Mateus
Senior ManagerCustoms and export control
Former customs officer who moved into industry. For more than 20 years responsible for export control, customs processes and audits in internationally operating companies, most recently at a German manufacturer of IT security and telecommunications technology.
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Kyra Thelen, LL.B.
Consultant for customs and export control law
Studied law at Ruhr-Universität Bochum. Her main areas are customs law, foreign trade law, export control and the analysis of criminal case files.
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Doris Gruchey
SpecialistCustoms and excise duties
More than 35 years of experience with customs and excise duties in industry, 21 of them in the tobacco industry and 15 as head of customs controlling and risk management at Bayer Business Services. Her main areas are customs value, special procedures and excise duties.
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We also support other advisers: with specialist input, an expert assessment or hands-on support on a matter, where it touches on customs, export control or tax criminal law. The client relationship remains with you.