Apostolos
Koumarinos
International Keynote Speaker | Public Speaking Expert | Founder of theSPEAKERS
Apostolos Koumarinos is an international keynote speaker and public speaking expert specializing in communication and the way ideas are expressed, understood and remembered.
He is the Founder of theSPEAKERS, one of Greece’s leading organizations dedicated to public speaking and communication education, working with executives, leaders and organizations to strengthen the way they communicate when the stakes are high.
Over the course of more than 1,200 speeches, keynotes, workshops and presentations, Apostolos has developed an approach to communication that goes beyond performance techniques. His work explores what happens before we speak, while we speak, and after our words reach another person.
His central belief is simple:
Effective communication is about creating the conditions for people to understand, connect and act.
His keynotes combine public speaking, systemic thinking and practical communication principles, translating complex ideas into experiences that audiences can understand and apply.
Apostolos works with senior executives, leadership teams and international organizations across industries, delivering keynotes and executive communication programs for companies including Sanofi, Rakuten Viber, KPMG, Allianz UK, Telekom and major institutions.
His areas of expertise include:
Public speaking & executive presence
Human communication
Communication through change
Active listening
Influence & persuasion
Generational communication
High-Stakes presentations
A former National champion in impromptu speaking in Greece, Apostolos has spent more than a decade studying how people think, speak, listen and influence one another.
He holds an MBA from Nottingham Business School and has completed four years of training in Systemic psychotherapy, an academic and professional path that has significantly influenced the way he approaches communication, relationships and human behavior.
He is the author of the bestselling The Public speaKING Guide, a practical guide to preparing and delivering effective speeches and presentations, as well as 90 Μέρες Έμπνευση, a 90-day personal development planner designed to help people turn intention into consistent action through reflection, goal-setting and daily practice.
His forthcoming book, marks the next evolution of his work. Moving beyond public speaking, it explores human communication at a deeper level, examining listening, understanding, relationships, feedback, authenticity and the invisible dynamics that shape every conversation before a word is even spoken.
Together, his work reflects a broader question that sits at the heart of his keynotes, teaching and writing:
How can we communicate, think and act with greater intention?
Today, his work focuses increasingly on the intersection between communication and human impact & change, particularly in environments shaped by technological acceleration, organizational change and increasing complexity.
Because as technology becomes more sophisticated, one capability becomes even more valuable:
the ability to communicate like a human being.
After more than 1,200 speeches, I’ve learned that communication is rarely about finding better words. It begins with understanding people better.
