Relationship basis
Future consulting, auditing, taxes
The foundation for our collaboration is always your figures. The classic disciplines of consulting thus provide us with the starting point for discussing developments, plans, opportunities and risks together.
Future consulting
"The future is something that most people only love when it has become the past." (William Somerset Maugham)
The future is not a state. The future is movement - change - possibility.
And it starts every day - with us at your side.
We are anchors, sparring partners and enablers for our clients. And right now, when processes, systems and roles are being reorganized, our contribution is more visible than ever before. We give people structure in the midst of complexity - whether interfaces, ecosystems or AI.
Because change also entails responsibility. The responsibility to guide people through the maze of new requirements. Responsibility to advise not just with figures, but with attitude. Responsibility to see the people behind the balance sheet.
The future means that we continue to develop. That we dare to break new ground. Not alone. But in a team. In networks. Together, we shape change with our clients. Together, we give the future a face.
Let us love the future with rentrop before it is the past.
Talk to us about the future:
Auditing with vision
Reliable figures are the basis for entrepreneurial decisions, regardless of whether in SMEs, group structures or the public sector. We not only check figures, but also create trust with banks, shareholders, supervisory bodies and you as an entrepreneur.
As auditors, we stand for quality, objectivity and many years of experience in a wide range of industries. Whether HGB, IFRS or special regulations: we provide you with audited security based on state-of-the-art auditing approaches and digital tools.
We are networked internationally via JPA International and nationally with other medium-sized law firms. Our work is based on the highest international quality standards, which we incorporate into your processes in a targeted manner.

Our services in the field of auditing:
- Statutory and voluntary audits of annual and consolidated financial statements
- Audits in accordance with HGB, IFRS and municipal budget law (Section 53 HGrG)
- Special business audits and proof of use of funds
- Company valuations and preparation of expert opinions
- Due Diligence & Purchase Price Allocation
Get in touch:
Tax consultancy
Taxes influence many business decisions, strategically, operationally and often also very specifically in everyday life. Tax law is not only complex, but also constantly changing. So it's good to have someone at your side who can keep an overview.
We support you in exploiting tax planning scope, avoiding risks and establishing modern tax management. With experience, specialist knowledge and a clear view of the essentials, we support you, whether in day-to-day business or in setting the strategic course.
Services, far more than standard:
- Choosing the right legal form for your company
- Expert opinions on questions of income and value added tax law
- Tax treatment of cross-border situations
- Support in complying with tax documentation obligations
- Tax compliance audits and risk analyses
- International tax issues
Let us advise you: