We are all specialists, but we find solutions as a team

Geschaftsfuehrung

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Volker Hummel

Tax advisor
Auditor

Degree in business administration (FH)

Tax advice

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Bettina Harms

Tax advisor

Diploma in Business Administration

Tax advice, specialist consultant for corporate succession DStV e.V.

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Joachim Wittlich

Auditor
Tax advisor

Fully qualified lawyer

Auditing

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Gründer

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Werner Renkes

Auditor
Freelancer

Degree in business administration (FH)

Special Projects

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Steuerberater

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Nina Bitz

Tax advisor

Master of Arts in Taxation

CONCEPTer since August 2017

Year-end work, tax returns, financial accounting

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Romina Dietzen

Tax advisor

Graduate in finance (FH)

CONCEPTer since July 2016

Tax consultancy, procedural law, health care consultant (IBG / HS Bremerhaven)

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Laura Lenz

Tax advisor

CONCEPTer since January 2016

Tax advice

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David Marx

Tax advisor

Business graduate

CONCEPTer since October 2017

Auditing, tax advice

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Kerstin Neubauer

Tax advisor

Graduate economist

CONCEPTer since August 2019

Tax advice, support for international companies, value added tax, Consultant for restructuring and corporate planning DStV e.V.

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Jan Saulheimer

Tax advisor

Diploma in Taxation (FH)

CONCEPTer seit Juni 2022

Tax advice

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CONCEPTer

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Jonas Bauer

Tax clerk

CONCEPTer since January 2020

Year-end work, tax returns, financial accounting

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Sigrid Blum

Accountant

Business economist (VWA)

CONCEPTer since January 2019

Year-end work, tax returns, financial accounting

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Sandra Bingenheimer

Tax specialist
Tax clerk

CONCEPTer since January 2020

Year-end work, tax returns, financial accounting

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Sandra Buchheim

Accountant
Tax clerk

CONCEPTer since October 1999

Financial accounting, controlling

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Eda Celik

Tax Assistant
Tax clerk

Bachelor of Arts (DHBW)

CONCEPTer since October 2023

Year-end work, tax returns, financial accounting

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Andrea Flicker-Wurth

Payroll and financial accountant

CONCEPTer since March 2018

Financial accounting

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Christiane Hoch

Accountant
Tax clerk

CONCEPTer since May 2015

Year-end work, tax returns, financial accounting

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Elena Jonas

Accountant
Tax clerk

CONCEPTer since August 2000

Year-end work, tax returns, financial accounting

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Doreen Jung

Tax specialist
Tax clerk

CONCEPTer since May 2018

Year-end work, tax returns, financial accounting

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Ulrike Junker

Payroll and financial accountant

CONCEPTer since March 2014

Payrolls, financial accounting

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Daniel Mak

Tax Assistant

Master of Taxation

CONCEPTER since October 2022

Year-end work, tax returns, financial accounting

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Nadja Müller

Accounting specialist

CONCEPTer since January 2020

Financial accounting

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Marvin Müller

Tax Assistant

with Master of Taxation degree program

CONCEPTer since January 2023

Year-end work, tax returns, financial accounting

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Merve Nacaroglu

Human resources administrator
Office management clerk

CONCEPTer since June 2023

Payrolls

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Mandy Nguyen

Tax clerk

CONCEPTER since October 2022

Year-end work, tax returns, financial accounting

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Kerstin Press

Tax clerk

Degree in business administration (FH)

CONCEPTer since March 2006

Year-end work, tax returns, financial accounting

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Meike Primorac

Tax clerk

CONCEPTer since October 2020

Payrolls

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Claudia Scheiber

Tax clerk

CONCEPTer since January 2020

Payrolls, financial accounting

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Michelle Schilling

Tax clerk

CONCEPTer since May 2021

Payrolls

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David Stenner

Tax Assistant
Tax clerk

with Master of Arts in Taxation degree programme

CONCEPTer since August 2015

Year-end work, tax returns, financial accounting

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Ines Wagner

Tax clerk

CONCEPTer since June 2019

Payrolls, tax returns

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Monika Weyer

Tax clerk

CONCEPTer since July 1991

Year-end work, tax returns, financial accounting

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Adriana Wolf

Tax clerk

CONCEPTer since September 2021

Payrolls

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Organisation

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Bianka Hensel

Data processing clerk

CONCEPTer since August 2007

Law firm management, internal accounting

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Beate Riemer

Office clerk

CONCEPTer since October 2020

Reception

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Jutta Schaefer

Office clerk

CONCEPTer since June 2018

Administration

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Azubis

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Johannes Klinger

Trainee as a tax clerk

CONCEPTer since August 2021

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Kambiz Kayhanfar

Trainee as a tax clerk

CONCEPTer since August 2023

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Philipp Klein

Trainee as a tax clerk

CONCEPTER since October 2022

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Kristina La Rocca

Auszubildende als Steuerfachangestellte

CONCEPTer seit Januar 2024

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Chantal Tossel

Trainee as a tax clerk

CONCEPTer since January 2023

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IT

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David Thelen

IT consultant

CONCEPTer since May 2020

Digitization, interfaces, document management

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Start your career

Talent wanted

Career

"Any meeting that lasts longer than an hour and doesn't even involve laughter is considered aggravated assault."
If you would like to start or further develop your career in the field of business and tax consulting in a competent and (usually) good-humoured team of colleagues, become a CONCEPTer.

Over 30 years of CONCEPT Renkes & Partner mbB

Our company history

The history of our company goes back to the year 1988 when we were founded in Mainz. Before that, our founder Werner Renkes had already been working as a tax consultant for around 8 years with two colleagues in a partnership. We are here for you with this experience!

Learn more

Let's get started!

Contact us
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