Boutique Consultancy for Effective Leadership and Change Management

At GECOS, we focus on quality, practical solutions, and lasting impact. We are a boutique consultancy that partners with leading organizations to achieve sustainable success—and many of our clients have trusted us for over a decade.

Our approach? Theory alone doesn’t change anything—what matters is what works in practice. That’s why we rely on concrete, actionable methods and tailor-made programs in leadership development, change management, and team development. Instead of abstract concepts, we deliver practical solutions that turn knowledge into measurable results.

Our consultants bring years of hands-on experience from corporate and organizational settings and serve as trusted sparring partners to our clients. We believe that excellent leadership is built through experience, the right mindset, and consistent practice. That’s why we help leaders unlock their potential, increase their impact, and drive long-term success—using innovative methods, interactive training, and genuine commitment.

Hosam Ghadamsi, Managing Partner

I’m a consultant and coach by heart – driven by the goal of supporting people, teams, and organizations as they grow and evolve. My journey has taken me through diverse professional and academic experiences that have shaped how I view leadership and collaboration today.

After studying mechanical and aerospace engineering at Princeton University and completing postgraduate studies at Imperial College London, I gained international corporate experience with companies like Mars Inc., working In many different departments such as Production, Sales, Marketing and HR.

But what’s always fascinated me most are the people behind the structures. That’s why I’ve deepened my expertise over the years through systemic consulting and coaching qualifications – and placed my focus on leadership and team development.

Born in Tripoli, raised in Vienna, I bring an intercultural perspective that strongly shapes my work. Connecting different ways of thinking, creating new perspectives, and driving meaningful change – that’s what motivates me.

For me, it’s never been about abstract frameworks – it’s about practical, human-centered solutions that actually make a difference.

Fannie Shao

Fannie Shao is an experienced consultant, facilitator and leadership coach with extensive experience in consulting and people management, offering individuals and organisations deep insights from multiple perspectives. As a consultant and facilitator in the field of leadership development and counselling, she offers courses on a wide range of leadership topics, combining theory and practice to help participants reflect on and apply what they have learnt. She takes a personalised approach to coaching leaders, working with coachees to explore key areas of learning, encourage engagement and motivation and support continuous learning. She also has experience in leadership assessment and is adept at using various psychometric tools and has successfully led several large talent selection and assessment projects in organisations. In addition to leadership development, assessment and coaching, Ms Shao provides practical, results-oriented solutions to improve organisational performance. Her consulting projects include talent strategy, leadership transformation and leadership competency modelling.

Her clients come from various industries, including industrials, commodities, consumer goods, energy, pharmaceuticals, manufacturing, chemicals, telecoms, automotive, finance, real estate and internet.

Ms Shao has more than 30 years of experience in leadership and talent consulting. She was a principal consultant at Korn Ferry Hay Group for many years and gained her expertise in HR leadership roles at multinational companies in various industries, including Unilever, Gillette/P&G, Nielson and Kemira. Ms Shao holds a Master’s degree in Industrial and Organisational Psychology.

Diana Resch

„Only what we recognize and name within ourselves can we consciously shape and develop in the external world.“

I found my way into management consulting via side roads – career stops that have had a lasting impact on me. The constant question that always accompanied me was: How do we humans actually function? What do we specifically need in today’s working world, which is currently being reshaped under the influence of technological upheavals, geopolitical uncertainties, and ever-increasing information density?

After ten years in healthcare, I studied psychology and entered the business world, where I took my first job as an industrial and organizational psychologist at an international engineering company. It was there that I realized that the boundary does not lie between humans and machines, but within people themselves and between them: raising the question how do we create organizational structures to shape collaboration, build trust, and create meaning.

For me, developing psychological competence is the invisible architecture of any profound organizational development: this became clear to me during my systemic consulting and coaching training.

I am passionate about self-leadership, which can be developed not only individually but also collectively within an organization: building resilient teams, establishing an adaptive leadership culture, and empowering each and every employee—because the real source of productivity lies within us.