About us
OTARIS stands for security, quality and innovation in the digital world. As an independent IT service provider, we develop customized solutions for secure software, reliable processes and sustainable technologies. With an interdisciplinary team of experts, we combine consulting, research and development to future-proof our customers in an increasingly networked and complex IT landscape.
Mission & Vision
Our mission is to strengthen companies through innovative and secure IT solutions. We create added value by thinking technology and security together from the outset. Our vision is a digital future in which trust, resilience and sustainable innovation form the basis of successful business models.
Security by design
We anchor security in every step of the development and consulting process instead of adding it as an afterthought.
Innovation with responsibility
We use new technologies in a targeted, practical and responsible manner to create real added value.
Transparency & trust
We work in partnership, openly and transparently - for solutions that our customers can rely on.
Future security
Our approaches are geared towards sustainability and long-term competitiveness.
Contact person
We support you throughout the entire product lifecycle - from the initial idea to secure development and operation. With our holistic approach, we combine technical expertise, modern security methods, practical AppSec training and comprehensive awareness-raising measures for development and operations teams. We also support you with regulatory requirements - from interpretation and implementation to the implementation of suitable solutions. We also offer targeted security tests and professional penetration tests to identify vulnerabilities at an early stage and secure them in the long term.
This not only protects your own applications, but also your customers and partners from attacks along the entire supply chain and ensures that your applications remain secure and compliant at all times.

Mehmet Kus
Managing Director,
strategic corporate management,
technical management of customer projects

Dennis Lamken
Senior Project Manager,
responsible for information security and the OTARIS test laboratory

Dario Treffenfeld-Mäder
Senior Software Engineer, Coordination for research and development projects

Dr. Karsten Sohr
Chief Security Engineer, Software Security Expert and Head of Training and Education
OTARIS is the Bremen regional office of the German IT Security Association (TeleTrusT)

The Bundesverband IT-Sicherheit e.V. - TeleTrusT was founded in 1989 to create a reliable framework for the trustworthy use of information and communication technology. TeleTrusT quickly developed into a well-known competence network for IT security, whose voice is heard in Germany and Europe. Today, TeleTrusT represents more than 200 members from industry, science and research as well as public institutions. In addition to its membership, OTARIS has taken over the TeleTrusT regional representation in Bremen in order to promote the topic of secure and trustworthy business processes as a contact and initiator for cooperation with established regional networks.
Further memberships
VDE - these three letters stand for one of the largest European associations for industries and professions in electrical engineering and information technology. An international expert platform for science, standardization and product testing - interdisciplinary, closely interwoven and unique in the world. A concentration of experience, market knowledge and technological know-how. As a cooperative corporate member, OTARIS supports the commitment of the VDE Association for Electrical, Electronic & Information Technologies.


Bitkom is Germany's digital association. Bitkom's members offer software, IT services, telecommunications or Internet services, manufacture hardware or consumer electronics, are active in the field of digital media or the network economy or are otherwise part of the digitizing economy. Bitkom is particularly committed to an innovative economic policy, modernization of the education system and a future-oriented network policy. As a member of BITKOM, OTARIS is involved in the areas of digital transformation, information security and Industry 4.0.
IFIT Freies Institut für Sicherheit was founded with the aim of forming a competence network to inform companies and institutions in the commercial sector and public institutions (Bremen / Lower Saxony region) about IT security issues and to promote the exchange of expertise and experience between members. As an active member from the very beginning, OTARIS supports the activities of the IFIT.

