MEETING YOUR CHALLENGES

solution-oriented.

Our customer-focused and individually tailored consulting fields within our spheres of expertise in auditing, tax, and legal advisory services combine all important subject areas surrounding your matters.

We synergize expertise.

Audit-related consulting

Within the scope of an audit, varied tasks and complex questions emerge that can present great challenges. The multidisciplinary working…
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Capital Market | financial supervision

In teams that are put together in an individual and multidisciplinary format, we support our clients in all matters surrounding…
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capital market law.

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Compliance

The concept of compliance represents conduct in conformity with the rules on the part of companies and all individuals associated…
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compliance | liability of executive bodies.

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Conflict | Disputes

Whether in corporate law disputes, investment procedures, liability questions, or avoiding lawsuits: conflicts always cost in terms of efficiency, a…
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Conversion | Companies + groups of companies

Sonntag & Partner assists companies and groups in all restructuring prompted by corporate law or for tax-optimization purposes, and with…
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Criminal tax law + criminal law

We provide counsel and representation for our clients in criminal tax law, in criminal law matters surrounding employment relationships, on…
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Employers | Employees

For decades at Sonntag & Partner, labor law has been characterized by in-depth consulting and support in all aspects of…
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Energy supply and infrastructure

The multidisciplinary energy and infrastructure team at SONNTAG has been supporting private and public clients in the successful implementation of…
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GDPR | Data protection.

The legal field of data protection includes a variety of specialty fields and requires the close cooperation of specialist attorneys…
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Geothermal competence

Das SONNTAG Geothermie-Team bringt die Strom- und Wärmewende voran. Seit 2004 hat das Team in zentraler Funktion als betriebswirtschaftlicher und…
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International business

On the backdrop of intensified and also complex international trade relationships, we advise our clients in drafting and negotiating international…
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IT + E-commerce

Registered marks, designations, and names are essential asset components of a company. Directly connected with protecting names, marks, and trademarks…
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Joint ventures | Cooperation

In today's globalized economy, joint ventures are a popular strategy for companies to achieve their national or international business goals…
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M&A | Due Diligence

Individual and multidisciplinary teams support our clients in all phases of corporate transactions, be it the acquisition or sale of…
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Managers | Governing bodies

We advise and support managers and governing bodies with structured contract drafting in line with their interests, particularly with respect…
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Private Equity | Venture Capital

In a very dynamic world, private equity and venture capital have become a key instrument for companies and investors in…
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Purchasing + Selling

Experienced specialist attorneys from all relevant disciplines support our clients in a closely cooperating team in all legal matters surrounding…
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Real estate | Construction projects

Sonntag & Partner has already assisted clients for decades with extensive expertise in all legal and tax matters involving real…
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Reorganization and restructuring

There is a lot of excitement around startups. This is due to their nature because new beginnings are of course…
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Stock corporation law.

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Succession | Bequests | Gifts

Our clients with professional discretion in all matters surrounding asset and company succession. Individually assembled expert teams support you in…
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Whistleblower Protection Law

The Whistleblower Protection Act has been passed - There is an urgent need for action!
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WE CAN HELP