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.
Klaus Verstegen
public auditor, tax advisor
Specific industry knowledge
- Construction industry
- Rehabilitation clinics
- Logistics
- Trade
- Manufacturing
Focus of services
- Annual audits (individual and consolidated financial statements)
- Company valuations, due diligence
- Special exams
- Forensic exams
- Business reports
Professional career
- Board member of ADKL AG, Wirtschaftsprüfungsgesellschaft (since 2015)
- Partner at ADKL along with predecessor companies (since 2001)
- Rölfs Partner AG, Düsseldorf (1999-2000)
- KPMG, Düsseldorf (1992-1999)
- Studies: Westfälische Wilhelms-Universität Münster; Diplom-Kaufmann (since 1992)
Klaus Verstegen
public auditor, tax advisor
Jochen von Bukowski
CPA/tax advisor
Specific industry knowledge
- Logistic
- Scientific Institutes
- Metal Trade
- Recycling
Focus of services
- Accounting Services
- Digitalisation
- Annual audits
Professional career
- Since 2023 Partner at ADKL
- 2001 – 2023 Partner CPA/ tax advisor
Jochen von Bukowski
CPA/tax advisor
Peter Volprecht
public auditor, tax advisor
Specific industry knowledge
- Plastics processing industry
- Wholesale (electrical / computer)
- Medical technology
- Telecommunications including project business and construction-related services
Focus of services
- Annual Financial Statements HGB
- Audit of the consolidated financial statements HGB
- Business advice
- Expert assessments
Professional career
- Partner / board member at ADKL (since 2017)
- Auditor, tax advisor at ADKL (since 2015)
- Appointment as public auditor (2009)
- Appointment as tax advisor (2003)
- Warth & Klein Grant Thornton AG (1999-2015)
- Studies: Business Administration, University of Cologne (1992-1999)
- Training as an industrial clerk at Bilfinger & Berger Bau AG (1989-1992)
Peter Volprecht
public auditor, tax advisor
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