Aligning performance with vision and strategy


Aligning performance with vision and strategy


The Evolution of Leadership

Founded in 2006, by Vassilis Antonas, Impact is the longest standing Greek firm, specialising in Executive Coaching and Organisational Development, whilst also offering a series of specialised trainings. Our company has provided services to over 70 Greek and multinational companies and is the pioneer of the first and longest standing Coaching Training in Greece; the Diploma, which was launched in April 2008 and has run consecutively, every year, since. In 2014, our training was globally the first to receive Accreditation from the Association for Coaching; at top tier (AADCT 4/4).

In 2020, Impact expanded its services to include Business Transformation, Sales Training and Sales Coaching, through the arm of Winning Culture.

Our vision is the Evolution of Leadership.

Our mission is to align performance with vision and strategy for individual and corporate leaders.

Vassilis Antonas

Executive Coaching

Executive Coaching is the theory and practice of an agent of transformation, supporting a professional’s awareness, leadership and talent, through behavioural and business interventions, within an organisational context.

Organisational Development

The process of aligning collective performance and behaviour with the organisation’s vision and strategy.

Training & Workshops

Our workshops are divided equally between skills training, practice and reflection and are based on constant interaction, live feedback and a move-forward attitude.


Featuring a carefully selected faculty of expert facilitators, counting over 170 influential alumni and spanning 120 hours of top-quality training.

Learn about our Services
Learn about our Diploma