Good work is based on understanding
Facts and figures
Who is behind ABACUS Corporate Finance?
ABACUS Corporate Finance consists of the German company ABACUS Corporate Finance GmbH based in Essen and the Finnish ABACUS Corporate Finance Oy based in Helsinki.
We are an owner-managed and independent consulting boutique, that works for medium-sized companies.
Our focus is on mergers & acquisitions and corporate finance services.
The area: the Nordic countries of Europe and the German-speaking countries, with a focus on Western Germany.
In our Mergers & Acquisitions transactions we guarantee:
Transparency
Every step of an M&A transaction is discussed with our clients
Personal contact
The partner responsible for the project is in charge of communication with potential investors – from the initial approach to the signing/closing.
Conscientiousness
The partner responsible for the project checks all documents personally
A strong team (from left to right):
Prof. Rainer Lauterbach, Partner; Volker Klosowski, Partner and Fabian Durst, Managing Director and Partner
We see our task not only as advising our clients. Instead, we accompany them through the entire process. In doing so, we draw on our experience from over 200 M&A transactions.
Fabian Durst, Managing Director and Partner
It is important to us that every client goes through the time of change with a tailor-made solution.
Prof. Rainer Lauterbach, Partner
We develop a personal strategy
A good M&A transaction depends on investors, who want to buy a company or invest in a project.
Over the years, we have built up a network of wealthy entrepreneurial families, family offices and other strategists who are interested in sustainable and responsible corporate development.
The quality of our network is our capital
A good M&A transaction depends on investors, who want to buy a company or invest in a project.
Over the years, we have built up a network of wealthy entrepreneurial families, family offices and other strategists who are interested in sustainable and responsible corporate development.
We support entrepreneurial families
who employ between 20 and 200 people. In some cases, we have been working with them for years. This is only possible with trust, sensitivity and discretion.
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Volker Klosowski, Partner
Our mission statement:
Strong values in times of change
We know that the sale or acquisition of a company is not just about figures. There are also memories, habits – and often worries about how the company will continue.
For many entrepreneurs, the employees, suppliers and customers have become part of the family. Employees in particular are often anxious about the future. We are familiar with these emotional challenges and our many years of experience enable us to find good solutions for everyone. Responsibility and trust are the values that come first for us.
Together for a future worth living:
CO2 compensation through peatland restoration of the Poldergrünland Moor
We are committed to reducing our ecological footprint and contributing at least a small part to a sustainable future.
We have chosen to offset our CO2 emissions by restoring moors. Moors are invaluable in the fight against climate change because they store large amounts of carbon. By restoring and protecting these ecosystems, we support the natural carbon cycle and minimize CO2 emissions.
We are currently supporting the “Poldergrünland Moor” – an area of grassland measuring around 14 hectares in the Nördliches Wietingsmoor near Diepholz (Lower Saxony). The area is located in a raised bog that has been severely damaged in some places. Although the peat is still well preserved, it would continue to decompose and release greenhouse gases if no rewetting measures were taken.
Our commitment to disadvantaged children
At ABACUS, social responsibility is not just a word, but a living part of our corporate values. In the first half of 2025, for example, we were proud to support Förderturm e.V., an association that opens up new opportunities for disadvantaged children and young people in Essen through education and leisure activities.
One of the highlights of our support was the 1st Förderturm Family Day, where families and supporters came together to encourage the children with swing golf, football golf and lots of other activities. The 21st Förderturm Charity Golf Cup 2025 also brought together numerous supporters at the Haus Oefte golf club. The highlight of the evening was the emotional charity race, which raised an impressive sum.
A big thank you to all the organisers, participants and supporters who made these events so special. Together, we not only created unforgettable memories, but also formed a strong community that takes responsibility and gives hope.