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.
Die Qualität unseres Netzwerks ist unser Kapital
Eine erfolgreiche M&A-Transaktion hängt von Investoren ab, die ein Unternehmen kaufen oder in ein Projekt investieren wollen.
Über die Jahre haben wir ein Netzwerk aus vermögenden Unternehmerfamilien, Family Offices und anderen Strategen aufgebaut, die an einer nachhaltigen und verantwortungsvollen Unternehmensentwicklung interessiert sind.
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
Unser Leitbild: Starke Werte in Zeiten des Wandels
Wir wissen, dass es beim Verkauf oder der Übernahme eines Unternehmens nicht nur um Zahlen geht. Es geht auch um Erinnerungen, Gewohnheiten – und oft auch um die Sorge um die Zukunft des Unternehmens. Für viele Unternehmer sind Mitarbeiter, Lieferanten und Kunden Teil der Familie geworden. Gerade Mitarbeiter machen sich oft Sorgen um die Zukunft. Wir kennen diese emotionalen Herausforderungen und unsere langjährige Erfahrung ermöglicht es uns, für alle Beteiligten passende Lösungen zu finden. Verantwortung und Vertrauen stehen bei uns an erster Stelle.Continuity in climate protection since 2021: CO₂ compensation through renaturation of the Grotmoor
We are firmly committed to reducing our ecological footprint and are continuing our efforts to ensure a sustainable future. We are therefore building on our previous efforts and continuing to provide targeted support for the renaturation of a valuable German moorland landscape this year.
Moorland renaturation remains our first choice for completely offsetting unavoidable CO₂ emissions. Moorlands are invaluable allies in the fight against climate change, as they store many times more carbon than forests in a small area. By restoring and protecting these unique ecosystems, we are actively helping to stop CO₂ emissions and promote biodiversity.
This year, we are supporting the rewetting of the Grotmoor in the Segeberg district (Schleswig-Holstein) through the “MoorFutures” program. Our contribution will enable the offsetting of 25 tons of CO₂ and ensure the protection of this important habitat for the next 50 years. In this way, we are once again making a small but effective contribution to regional climate and nature conservation.
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.