Apostolos
Koumarinos

Apostolos is an international keynote speaker, public speaking champion, podcaster, and the Founder of theSPEAKERS, the leading public speaking and communication education organization in Greece.

His work blends systemic psychotherapy, philosophy, and innovative own techniques to help individuals and teams communicate with impact, clarity and confidnece through active listening in moments that matter.

Trusted By

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The Invisible Gap

Most misalignment is caused by quiet misunderstanding.

People believe they are clear, others believe they have understood. Between the two, meaning shifts, and over time, culture is shaped.

Communication has no opposite, only interpretation.

Where I Speak

✓ Global conferences and summits
✓ Corporate leadership events and offsites
✓ Executive and C-level development programs
✓ Universities and educational institutions
✓ Public talks and curated experiences

Every keynote is designed to challenge thinking, elevate presence, and create lasting behavioral change.
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The Trace

This is called meta-communication. What stays after a discussion ends.

This is where The Trace begins.

    The Public
    speaKING Guide

    The Public speaKING Guide is a practical and innovative framework for impactful communication.

    It became a best seller in Greece, trusted by professionals, leaders, and speakers who wanted more than tips and techniques.

    The Guide reflects my belief that powerful speaking is not about charisma alone, but about structure, intention, and emotional awareness.

    “Today, it serves as the foundation for many of my talks, workshops, and educational programs”.

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    Leadership in Communication

    Through theSPEAKERS, I have helped shape the modern public speaking and communication landscape in Greece, working with leading organizations, institutions, and executives.

    Today, my work extends internationally, supporting leaders and teams who operate across borders, cultures, and high-stakes environments.

    This dual perspective allows me to combine deep local leadership with a global mindset.

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    Testimonials

    • Apostolos creates space for people to think before they speak. That alone changed how our leaders communicate under pressure.

      Head of Learning & Development

    • What stayed with us wasn’t a technique, but a shift in awareness. Conversations became clearer, calmer, and more intentional.

      Executive team member | International organization

    • This wasn’t a talk. It was a shift in how our leaders communicate with one another.

      What we heard repeatedly

    • Apostolos doesn’t teach communication. He changes how people think, listen, and respond.

      Senior HR leader | Global organization

    Conversations That Shape Thinking

    Through my podcast, Kings or Pawns, I explore how communication, human connection, and leadership shape human behavior in real life.

    Each episode is a conversation about influence, responsibility, and presence in moments that matter. From leaders and creators to thinkers and professionals, the podcast brings together voices that challenge certainty and expand perspective.

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    Communication is felt long before it’s measured.