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Solutions for complex economic questions

ADKL is a multidisciplinary firm of accountants, lawyers and tax consultants.
ADKL advises numerous German and international businesses and entrepreneurs on complex commercial, legal and fiscal matters.
Our long-standing clients benefit from practical, customized solutions developed by experienced, entrepreneurially orientated accountants, lawyers and tax consultants. This holistic approach, coupled with integrity, reliability and continuity, make ADKL stand apart and make a decisive contribution to our clients' commercial success.

Your benefits

Multidisciplinary Team

The know-how gained by our accountants, lawyers and tax consultants in many years of professional experience means a maximum of efficiency without friction losses. One of our partners is available as the permanent contact for our client throughout the consultancy period.
Flat hierarchies ensure efficient and rapid communication. Our multidisciplinary approach covers all the concerns relevant to our clients' businesses.

Decentralized Operations

ADKL currently has five offices in Germany: Düsseldorf, Dormagen, Langenfeld and Mönchengladbach. This decentralization enables us to support companies throughout Germany. The focus of the work at the individual offices may differ in some cases, but the networked collaboration within the organization makes it possible for you to obtain the full range of consultancy services immediately at every office.

International Approach

Globalization and the opening up of new markets confront businesses with new challenges every day. ADKL recognized this trend at an early stage, and responded by founding MSI Global Alliance in London 25 years ago. MSI Global Alliance has in the meantime grown into an international association of over 250 independent firms of accountants, lawyers and tax consultants. The network covers over 100 countries, and makes MSI one of the 20 largest multidisciplinary alliances.

Learn more about our most important milestones



 2015 The merger is perfect: ADK and Dr. Müller, Haeb & Partner are from now on ADKL



  1990 Founding of MSI Global Alliance



 1982 Founding of ADK Abels Decker Kuhfuß



1977 Founding of the accounting and tax consulting company Dr. Müller, Haeb & Partner

Our services

Find out more about comprehensive, cross-advisory services of ADKL.

Your career at ADKL

You are excellent in your field and have clear aims? Grow with us!


Here you will find information about current cases, important innovations and company news.

In Germany and worldwide at your side

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