Dr. Stefan Bießenecker has been an active communications expert for companies and organizations, brand positioning and marketing for more than 15 years. His work focuses on internal and external corporate communications, brand creation and positioning, as well as crisis communications and stakeholder management.

After working as a press officer at PwC and as the globally responsible VP Marketing of a software group, Stefan has made brands come alive together with his partner since 2017.

Johannes Herzog holds a degree in business administration and worked for more than ten years in corporate and business development as well as in strategy consulting, including Deloitte and the e-commerce strategy consultancy eccelerate. In 2017, he decided to work as a freelance management consultant and has been partnering with Semler Company.

His focus is on digital sales growth, organizational development and restructuring. He supports his clients in transformation processes with strategy development, process design and consistent management during implementation.

Dr. Andrea Martini has more than 10 years of consulting experience, among others at McKinsey & Company ans PwC.

She has already supported numerous clients from different industries as a project manager in strategic and organizational change processes. Her focus is on sustainability, especially climate strategy and climate reporting. She supports companies in the formulation of climate targets according to the requirements of the Science-based Targets Initiative and in the context of alignment withthe recommendations of the Taskforce on Climate-related Financial Disclosures (TCFD).

Dr. Andrea Martini holds a PhD in economic policy from the University of Freiburg, a degree in economics and business administration (Wirtschaftsakademie Hamburg). As a systemic-humanistic coach, she also supports executives in personal development processes to develop their full potential.

Juliane Naumann is an expert in business transformation, cultural change, new leadership and resilience. She advises internationally operating companies and coaches them in developing solutions and proactively mastering change.

After studying “European Studies” in Germany, Spain and the Netherlands, Juliane worked as a consultant for Greenlight Consulting GmbH in various cooperation projects with KPMG. Since 2019, she has been self-employed as a consultant, trainer and systemic business coach, supporting her clients in their transformation processes.

In collaboration, Juliane offers a creative space for thinking, experimenting and dialoguing, where she gets her clients moving with curiosity, heart and pragmatism.

As an associate partner at Semler Company, Marlen is an expert in organizational development, team and process excellence, and collaboration. After studying business administration at the Vocational Academy Berlin, Marlen gained experience in the financial services and pharma/life sciences industries, working in change and communication management.

An experienced culture transformation consultant, Marlen has accompanied leaders in strategic transformations for over ten years. Her focus is always on the people who bring processes and products to life. At Semler Company, Marlen works primarily on supporting change management projects.

For over 20 years, Brigitte Lippmann has been working to fill leadership positions with the best possible candidates, which are equipped with the right skills. Her expertise include assessment and leadership development for individuals as well as change management in the direction of organizational development, talent processes and culture. Her focus is on talent management in an international context.   

After global HR generalist and talent management roles at Fortune 50 companies, Brigitte focuses in the crisis-ridden environment on optimizing the development of internally available talent and the – often necessary – change of corporate culture. 

For Marian, technology is the means to enable and optimally support innovation and transformation. For him, the focus is on people and their needs. He builds bridges to technological opportunities.

For more than 10 years, he has been advising companies, as well as political actors and NGOs, on how to exploit the opportunities of digitalization for themselves. His work focuses on IT security, data protection, infrastructure and open source software. He brings his knowledge to bear on business transformations and cultural changes. With his roots in physics and as a former head of IT at a medium-sized company, he knows about the differences between theory and practice.

In addition to his profession as a consultant, Marian shapes policy, is a gifted cook and an avid artist. Whether it’s modified guitars or photography on the wall, there’s always something new to discover with Marian.