RLT Ruhrmann Tieben & Partner mbB - Unternehmen

RLT: Who we are. How we work. What makes us different.

Ruhr Lippe Treuhand GmbH founded in 1958 is the foundation of the RLT Group with its locations in Essen, Duisburg, Duesseldorf, Cologne and Berlin.

Our Group includes:

  • RLT Ruhrmann Tieben & Partner mbB Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft, Essen, with a branch in Duisburg, Duesseldorf, Cologne and Berlin 

  • RLT Treuhand GmbH Wirtschaftspruefungsgesellschaft – Family Office, Essen 

  • RLT IT- und Systemprüfung GmbH Wirtschaftsprüfungsgesellschaft, Essen

  • RLT corporate finance solutions GmbH, Berlin

Currently, the RLT Group has 100 employees and with its locations in Essen, Duisburg and Duesseldorf is among the big small and mid-sized audit and tax consulting firms in the Rhine-Ruhr region.

Our clients are owner- and family-operated small and medium-sized companies that we assist both in Germany and abroad in the fields of public accounting, tax consulting and other fields such as business management and financial matters. In addition, if need be, we cooperate with experts of other professional groups such as specialized attorneys or foreign colleagues and thus offer multidisciplinary and cross-border consulting services.

We offer our services in a one-stop shopping approach. Each of our clients is assigned a partner who is responsible for the project and another contact.

We ensure that we render customized and personal consulting services with the highest level of expertise. Each client is assigned and personally assisted by at least one partner and one additional fixed contact. The partners specialize in individual areas of concentration, depending on their training and professional activities, so that we are able to provide our clients with highly-specialized know-how within a short period of time. Furthermore, the RLT partners exchange their professional experience and know-how on a regular basis. Thus, your RLT partner has all the insights in your situation and provides you with optimized solutions even for very specific issues in a one-stop approach. As a result of the long-term employment of a number of our employees, continuity, faithful cooperation and holistic consulting services are ensured also when dealing with complex matters.

Feel free to contact us at any time, we are here to help:

Essen office

fon: +49 (0) 201 24 51 50
E-Mail: essen(at)

Duisburg office

fon: +49 (0) 203 7 39 94 0
E-Mail: duisburg(at)

Duesseldorf office

fon: +49 (0) 211 17 93 97 0
E-Mail: duesseldorf(at)

Cologne office

fon: +49 (0) 221 12 07 10 0
E-Mail: koeln(at)

Berlin office

fon: +49 (0) 30 49 91 55 60
E-Mail: berlin(at)