About us

In its capacity as a management consulting company, quattron has supported international customers in the traffic, transportation, logistics industries as well as providers of information, communication and management networks since 2002, with a focus on strategic infrastructure management and and digitalisation.

quattron is an independent consulting firm that is based on the extensive experience of its three founders as top management consultants. The growth of the company is based on the mission pursued by the founders, namely to develop methodologically effective, customised and feasible solutions and to establish a partnership-based rapport with clients during the implementation of the projects. Accordingly, the entire consulting team at quattron is characterised by comprehensive technical and social competencies along with extensive industry and consulting experience. The entire quattron network consists of approximately 100 consultants and experts, mainly at the senior level, and forms another important pillar in quattron’s success.

quattron’s consulting services cover all areas of company management and range from strategy development to the supervision of implementation processes. The consulting spectrum comprises management and technology services as well as program management.

In this vein, quattron always focuses on generating benefits for its customers, which include municipal institutions, government authorities or private businesses.

Customer Benefit
quattron´s Consultancy Approach
quattron´s Management

Customer Benefit

By applying its strategic, technical and business skills, quattron supports the technological transformation of network infrastructure.
Extensive competence in various sectors, technologies and methods as well as experience in large-scale international projects ensure a swift, target-oriented path to creative, customized and feasible solutions.
Cooperative partnership brings about a high level of identification with the project in companies, which forms the basis for successful implementation of the prepared solution.

quattrons’s Consultancy Approach

The objective of our consultancy services is to provide made-to-measure solutions for strategic, commercial, technological and organizational issues. We pursue the following consultancy principles in our work:

We know the business and performance processes in the technology and infrastructure sector, can improve and integrate them, and can assess the influence of new products, technology and business models on the processes of our clients.
We are aware of the challenges facing our clients and their markets and are able to implement the targets of our clients by means of our methods and solution approaches. The quattron team fully commands tasks involving the complexity of organization structures, including communication required, and can rely on extensive experience.
We understand the technology of our clients and provide solutions for handling (re)investment and business operations.
We don’t simply “slip“ solutions such as process or organization modifications onto our clients, but cooperatively support our clients in every phase of their project in analyzing achievable performance improvements, long-term securing of earnings, as well as needs-based business development.

Our consultancy services are based on four pillars: a profound knowledge of the respective service processes, sector-specific specialist expertise including excellent top-management consultancy know-how, extensive technology skills and social competency.

quattron´s Management

quattron’s management contributes of a healthy mix of experience, dynamics, technological knowledge, management skill and leadership qualities to the company. Dr. Silvio Döring, Stefan Lossau and Dr.-Ing. Thorsten Büker all highly value a professional approach, work on the basis of solutions and benefits when dealing with customer needs and interact with their customers on a personal level. The same is expected of all quattron employees.

Our Managing Partner

Stefan Lossau

Industrial engineer (Diplom) specialized in technology strategy/management, (re)organization and business process optimization as well as structuring and managing larger projects and programs. Other areas of expertise include market and potential analysis, customer relationship management (CRM) and post merger integration. Mr. Lossau has extensive experience in developing technology strategies, conducting reorganization projects and managing major projects. He is specialized in industries involving infrastructure companies such as railway companies and airports. He has been working in the international IT and top management consulting field since 1995 and worked as a consultant at SAP CRM Consulting, DETECON and Arthur D. Little International before co-founding quattron.

Stefan Lossau

Managing Partner

+49 (69) 686036 0

Dr. Silvio Döring

Attorney at law specialized in strategy development, organization and corporate finance as well as structuring and managing larger programs and projects. His areas of expertise include mergers and acquisitions, post merger integration and life cycle management. Dr. Döring also has extensive experience in business planning, investment planning/feasibility studies, renovation planning, conducting negotiations, integrated communication and supplier management. His industry specialization includes railway infrastructure, travel management, telecommunications and public sector mandates. He has been working as a consultant and lawyer in the international top management consulting sector since 1994 and was previously employed at companies such as Arthur D. Little International.

Dr. Silvio Döring

Managing Partner

+49 (69) 686036 0

Dr.-Ing. Thorsten Büker

Civil engineer, specialises in the area of conflict between infrastructure planning / operation / technology. He applies railway operations science (EBWU) studies on the one hand, and is at the same time able to set up models to map the functionality of new types of control and safety technology (LST). During his research activities, he has dealt with the mechanisms of timetable robustness. He finds it interesting to give further education courses on his main areas of work and to prepare knowledge in a targeted manner for the respective participants. Dr.-Ing. Thorsten Büker is a member of several associations and committees. He brings project experience from fourteen countries along with the (working) cultural conditions.

Dr.-Ing. Thorsten Büker

Managing Partner

+49 (241) 463662 0

What clients say about quattron

Theoretical knowledge and methodological skills are no longer enough. We need a consulting firm that knows how to make things happen. quattron has proven to be a competent partner in many projects.

Stefan Garber
Board Member a.D. Deutsche Bahn AG

With the help of customized methods, smart optimization approaches and a lot of intuition, quattron was able to identify significant savings potential for us. Close, trusting collaboration with the consultants guaranteed implementation and enabled us to realize that potential.

Dr. Henrik Haenecke
Head of Financial Controlling and Corporate Development at the Berlin airport (formerly)

The quattron team's constant involvement helped us tremendously in setting up our digital GSM-R network.

Roland Heinisch
Chairman of the Board of Management a.D. DB Netz AG