Auditors, auditing

Transparency at all levels

Auditors, auditing (Cologne, Berlin and nationwide)

High-quality auditing by KONLUS GmbH Wirtschaftsprüfungsgesellschaft far exceeds the statutory minimum requirement. We meet this challenge by developing an audit approach that is agreed with the client in conjunction with a comprehensive support concept.

Our auditing services are closely aligned with the needs of our clients. We support a variety of medium-sized clients who have different legal forms and are from different industries as well as public sector organisations that prepare annual accounts in accordance with the German Commercial Code (HGB) and the International Financial Reporting Standards (IFRS).

Thanks to our high quality standards and our multidisciplinary, client-specific auditing and consultancy approach, we are highly respected by our clients, and you can benefit too. As auditors, we have a high level of social accountability, accompanied by a high level of expectations. We are fully aware of this and endeavour to live up to these expectations by always applying our expertise.

We use our independent, autonomous and conscientious professionalism to face the challenges currently associated with modern-day auditing. Our goal is to deliver a proper, client-centred service at a commercially reasonable cost.

Our staff has many years of experience in advising and auditing companies that prepare their annual accounts in accordance with the German Commercial Code (HGB) and the International Financial Reporting Standards (IFRS). When caring for our clients, we make sure that the composition of our audit and service teams meets each client's specific requirements.

In addition to documentation relating to audit findings and results, our audit reports provide detailed and informative analyses that go far beyond the minimum requirement. In particular, we support the supervisory bodies of a company and provide the basis for further company assessments.

Our auditing field of activity includes statutory and voluntary auditing of annual and consolidated accounts in accordance with the German Commercial Code (HGB) and the International Financial Reporting Standards (IFRS) as well as audit reviews, special audits and valuation reports, especially in the context of forming or restructuring a company. We also provide services relating to prospectus controls and fiduciary activities. In addition, we provide audit-related services (for example, when setting up and optimising control and risk management systems) and undertake internal auditing tasks outsourced to us, both for industrial companies and credit institutions. We can also take over accounting and financial reporting for our clients.

Through our affiliate company, IT AUDIT GmbH Wirtschaftsprüfungsgesellschaft, we conduct IT audits as part of our audit of annual accounts, internal auditing or due diligence.

We provide reports on business and practice valuations (KONLUS valuation).

KONLUS GmbH Wirtschaftsprüfungsgesellschaft provides auditing services. KONLUS GmbH Wirtschaftsprüfungsgesellschaft actively participates in a quality control system in accordance with § 57a of the German Law Regulating the Profession of Auditors (WPO) and therefore has the necessary certificate of participation.

We would be delighted to provide you with an individual non-binding quotation for our services.

Contact persons at KONLUS for auditing:


We provide the majority of our auditing and tax consultancy services to clients in Bergisch Gladbach, Cologne, Leverkusen, Gummersbach, Bonn, Düsseldorf, Remscheid, Solingen, Wuppertal and neighbouring regions. However, we also operate throughout Germany. Our branch office is located in Berlin.


Schloss-Straße 20
51429 Bergisch Gladbach
Tel.: +49 (0) 22 04 / 9 50 81 00
Fax: +49 (0) 22 04 / 9 50 81 10

Service Hotline

+49 2204 9 50 81 00


Im Mediapark 5a
50670 Köln
Tel.: +49 (0) 221 / 95 26 81 - 170
Fax: +49 (0) 221 / 95 26 81 - 113

Auditing by KONLUS in Cologne and Berlin