Personalities
Movers and shakers with expertise
Our experts come from a wide range of different fields. What they all share is the same integrated approach to consulting – and the same goal: to join forces with you to achieve the best possible results for you. We love new challenges. But we don’t do things by half measures. When we do something, we do it right. And we enjoy doing it.
Search and find
Looking for a point of contact for a specific issue or specialist field? Feel free to use our search function. If you want to search for a specific name, the alphabetic team overview can take you straight to what you are looking for. This section lists contact information as well as areas of expertise and practice areas.
All of us look forward to getting to know you – and to working with you to find just the right solution for your individual needs.
Wolfram Wagner
public auditor, tax advisor
Specific industry knowledge
- Insurances
- Banks
- Rehabilitation clinics
- Aviation
- Business-related services
Focus of services
- Company valuation
- Checking the adequacy of severance payments for structural measures under company law
- Internal revision
- Fiduciary activity
Professional career
- Responsible for the areas of corporate finance / company valuation, trust work (since 2004)
- Accompanying almost 100 corporate structural measures of companies / groups with values in the billions
- Partner / board member at ADKL (since 2015) along with predecessor companies (since 2005)
- Annual audits at PwC, Düsseldorf / Paris
- Studies: Business Administration, Cologne / Clermont-Ferrand, France
Wolfram Wagner
public auditor, tax advisor
Luisa Marie Wigger
Tax Consultant
Focus of services:
- Corporate taxation
- Taxation of individuals
- Preparation of annual financial statements and tax returns for partnerships and corporations
- Support during tax audits
Professional career:
- Tax advisor at ADKL (since 2025)
- Appointment as tax advisor (2024)
- Tax advisor/ tax assistant at Dr. Ganteführer, Marquardt & Partner mbB, Düsseldorf (2021-2025)
- Tax clerk at Reuter, Fremdling & Partner mbB, Grevenbroich (2016-2021)
Studies:
- Taxation Dual (B.A) at Düsseldorf University of Applied Sciences (2016-2021) incl. vocation training as a tax clerk (2016-2019)
Luisa Marie Wigger
Tax Consultant
Marc Wilmschen
public auditor
Specific industry knowledge
- Manufacturing
- Trade
- Telecommunications
- Business-related services
- Hospitality
Focus of services
- Sustainability Reports – Audit and Consulting
- Audits of annual and consolidated financial statements HGB/IFRS
- Preparation of annual accounts
- Data analytics
- Due Diligence
Professional career
- Public auditor at ADKL (since 2021)
- Ernst & Young, Düsseldorf (2013-2021)
- Appointment as public auditor (2020)
- Studies: Business Administration M.Sc., University of Bayreuth (2011-2013) and Business & Economics B.Sc., University of Wuppertal (2008-2011)
Marc Wilmschen
public auditor
Daniela Welling
tax advisor
Focus of services
- Corporate taxation
- Taxation of individuals
- Expert opinion on tax issues
- Bankruptcy tax law
- Preparation of annual accounts
- Supervision of tax audits
Professional career
- Tax advisor at ADKL (since 2014)
- Tax advisor at Dr. Ganteführer, Marquardt & Partner GbR, Düsseldorf (2012-2014)
- Appointed as tax advisor (2012)
- Tax consultant at WP / StB Heinz-Bernd Hanten, Düsseldorf (2009-2012)
- Tax consultant at ECOVIS KSO, Düsseldorf (2004-2009)
- Studies: Business Administration, FH Gelsenkirchen-Buer; Diplom-Betriebswirtin (FH)
Daniela Welling
tax advisor
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