Testimonials

Dr Christine Mayer-Nicolai
VP, Head of GRASP,
Merck KGaA
“Dr Tchelebi accompanied my global and multicultural team for 6 months. Together we created a shared understanding about our department’s priorities, which was possible because we worked intensively on an open feedback culture. We realised that in the past we sometimes went round in circles because we tried to solve our relationship problems through content-related discussions. Dr Tchelebi responded to each team member individually during the process and thus created a safe space in which we were able to concisely work through concerns and annoyances.”
Dr Stefan-Alexander Albrecht
Chief Scientific & Medical Officer,
Merz Therapeutics GmbH
“Dr Tchelebi provided my international management team with long-term support in its strategic orientation and helped us build and develop our team identity during multiple stages of organisational change. The development of a leadership model and the in-depth examination of our understanding of leadership and decision-making processes has helped us to achieve a stronger strategic radiance into the organisation and enabled us to provide more orientation in our own area of responsibility. Dr Tchelebi exemplifies a high professional standard and I and my management team have rock-solid trust in her analytical skills and intuition for team dynamics.”
Dominik Lemke
Vice President Group Human Resources, 
Schnellecke Logistics AG & Co.
“I took part in Dr Tchelebi's advanced course in group dynamics. Together with other senior managers, we recognised behavioural patterns in groups and were thus able to navigate these more effectively. I understood how I come across as a manager and how others sometimes push my own buttons, which has enabled me to deal more effectively with my own team. We realised how group dynamics affect strategic corporate decisions and how to manage them in a solution-oriented manner. Dr Tchelebi's ability to detect underlying relationship dynamics and reflect them to the group to work through is outstanding. Despite her benevolent approach to blind spots, she doesn't let go until all elephants in the room have been worked through.”
Frauke Wölbert
Head of Organisational Development,
Schlütersche Verlagsgesellschaft 
mbH & Co. KG
“Dr Tchelebi and I worked on actively shaping my new leadership role as part of our coaching engagement. The aim was to live my own authority authentically and move from operational involvement to greater strategic impact. I was able to gain clarity about my own desired positioning in relation to the expectations of former and new peers. I particularly appreciate about Dr Tchelebi that she always finds the right balance between emphatic listening and sometimes seemingly uncomfortable confrontation. She made me feel recognised and valued in my own competence throughout the collaboration.”
Dr Christoph Willeke
Head of Law & Corporate Matters,
 Continental AG
“A deadlocked team conflict had cost me a lot of time and energy, which is why I asked Dr Tchelebi for support. She succeeded in creating a safe space in which difficult emotions could be bluntly expressed. Through her professional moderation, she took the threatening character out of the confrontation and enabled a goal-oriented dialogue that had been buried for a long time. Dr Tchelebi has a talent for naming things in such a way that all parties feel seen and can therefore rediscover empathy for each other. I very much appreciate the integrity and appreciation with which she shapes professional client relationships. The professional and detailed documentation of the discussions is also very helpful for further discussions.”
Stefan Burkart
Chief Financial Officer, 
Carrier HVAC
“As part of a coaching engagement, Dr Tchelebi helped me uncover in just a handful of sessions exactly what was holding me back from stepping up to the next leadership level. With precise, practical feedback — always at my pace and on my terms — she helped me recognise deep-rooted behavioural patterns and realign them step by step. My behavioural repertoire and effectiveness as a leader grew dramatically, a change my colleagues have also commented on.”
Sabine Sandner
Head of People Development & Culture,
TUI Deutschland AG
“The webinar with Dr Tchelebi on intercultural cooperation was exactly what we were looking for: suitable models, clear examples and a confident speaker who responded to the international audience with great sensitivity. Dr Tchelebi's wealth of experience, authenticity and engaging manner captivated us from the first to the last minute. Our employees were enthusiastic across national borders. Thank you very much for these valuable and outstanding impulses!”
Sylvia Wisniwski
Managing Director, 
Finance in Motion GmbH
“The tailor-made leadership programme Dr Tchelebi created for our 50 senior leaders was a genuine game-changer. Through her relentless deep-dive approach and trademark ‘zero tolerance for superficiality’, she laid bare the organisation’s core dynamics, surfaced obstacles and armed us with clear levers for the cultural shift our new strategy demanded. I especially valued the partnership on an equal footing – marked by mutual respect and absolute integrity.”