For more than 15 years, we at sonntag have been pursuing a mission:

We secure the future of companies built up over a lifetime, arrange corporate succession and create fresh perspectives – and we do all this with an unyielding will, and passion that one would initially not expect to find in a consulting firm.

As experts in our field and one of Germany’s largest providers for mergers & acquisitions (M&A) in the high-credit German mid-size business sector, we advise our clients in the purchase and sale of businesses with an outstanding reputation.

Our success can be attributed to our values of credibility, drive and responsibility.

We’ll support you through your journey every step of the way, providing transparent, pragmatic and fast service with the utmost discretion!

The story behind sonntag

Up until the establishment of the sonntag company, Thomas Sonntag had a somewhat atypical yet remarkable CV. Contrary to expectations, Mr. Sonntag is neither an economist nor an attorney – he is a historian.

After obtaining his degree, he worked for one of Germany’s largest auditing firms and learned all there is to know about the M&A business from scratch. Following further training at the Institut der Wirtschaftsprüfer [Institute of Public Auditors], it quickly became obvious that Mr. Sonntag had the know-how and competence to manage his own branch of the company and assumed the position of managing director. In the late nineties, his plans for self-employment persisted, yet were foiled by a lucrative offer from a renowned bank operating in the field of investment banking. Yet he quickly realized that large corporate structures as well as the settlement of big tickets on the stock exchange did not fit in with his idea of business consultancy. The foundation for the establishment of the sonntag company was laid.

"We distinguish ourselves from our competitors on the basis of the principle of honest market assessment. Market assessment as a price indicator is considerably more realistic than mathematical finance models of purchase price determination."
"We distinguish ourselves from our competitors on the basis of the principle of honest market assessment. Market assessment as a price indicator is considerably more realistic than mathematical finance models of purchase price determination."

Our Team

Our Team

Thomas Sonntag

Thomas Sonntag

Management

Patrick Seip

Patrick Seip

Management

Julian Will

Julian Will

Management

Sydné Dawn Bruwer

Sydné Dawn Bruwer 

Management Assistant

Fabian Schmidt

Fabian Schmidt

Project Management

Benedikt Pohlner

Benedikt Pohlner

Project Management

Niklas Poppelreuter

Niklas Poppelreuter

Project Management

David Weidmann

David Weidmann

Project Management

Michael Ganter

Michael Ganter

Project Management

Andreas Schuster

Andreas Schuster

Project Management

Sebastian Ringleb

Sebastian Ringleb

Project Management

Sebastian Wissig

Sebastian Wissig

Project Management

Pascal Saake

Pascal Saake 

Business Analyst

Viktoria Schuelein

Viktoria Schülein 

Business Analyst

Philipp Spelkus

Philipp Spelkus

Business Analyst

Sneha Arland

Sneha Arland 

Business Analyst

Marc Seibert

Marc Seibert 

Research Manager

Fabian Pitz

Fabian Pitz

Finance & Tax

Sven Bierwirt

Sven Bierwirt 

Head of Operations

Anna Wolf

Anna Wolf 

Head of Marketing

Tanja Woltz

Tanja Woltz 

Marketing Manager

Guido Steinbrecher

Guido Steinbrecher 

Project Assistant

Philipp Dille

Philipp Dille 

Project Assistant

Paul Jäschke

Paul Jäschke

Project Assistant

Andreas Recklingloh

Andreas Recklingloh 

Project Assistant

Our vision

By 2021, we will be the No. 1 consultancy in Germany in terms of number of company sales with a transaction volume of 2 to 50 million EUR.