Our Story → An inspirational and informative text about the company.

Atai is more than just a construction company – we're the embodiment of a vision.
Founded with a singular purpose in mind, we set out to redefine the industry by creating construction projects that are not only architecturally stunning but also deeply rooted in the well-being of the communities they serve.
Led by Polyvios Karachontzitis and a team of dedicated construction professionals, Atai was born from a desire to make a positive impact on the world around us. With over three decades of experience in the construction field, our team brings a wealth of knowledge and expertise to every project we undertake.
Whether it's a cutting-edge commercial development or a transformative residential complex, our projects are more than just buildings; they're symbols of progress, innovation, and the power of human ingenuity.

From infrastructure and industrial projects to aviation and military developments, Atai has a proven track record of delivering excellence in both the private and public sectors. We've worked on high-profile projects across the US, the Middle East, and Central and South Eastern Europe, earning a reputation for innovation, integrity, and reliability along the way.

At Atai, the future is built on a foundation of vision, integrity, and a steadfast dedication to making a difference – one project at a time.
But for us, quality construction is about more than just materials and craftsmanship. It's about building strong relationships with our clients and exceeding their expectations at every turn. We believe in going beyond the expected to find the best possible solution, no matter the challenge.

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Our Team → Polyvios Karachontzitis, CEO of Atai, brings over three decades of expertise in Project and Construction Management to the table.
Polyvios Karachontzitis – CEO

Born in Thessaloniki, Greece, and raised in Toronto, Canada, Polyvios has cultivated a diverse portfolio spanning high-profile projects across various sectors.
His extensive experience encompasses notable projects in industrial, infrastructure, commercial, aviation, and military domains. From the USA to the Middle East, as well as Central and South Eastern Europe, Polyvios has left his mark on construction landscapes worldwide.
With a keen eye, Polyvios has spent over ten years dedicated to the hospitality sector. He spearheaded the construction of Greece's first AMAN Resort, the iconic AMANZOE, followed by the creation of the magnificent AMANZOE Villa 20, the largest villa in the AMAN Resorts and Mediterranean region. Polyvios, then, served as the Project Director for the prestigious AMANVARI Resort in Mexico.
Polyvios is also a distinguished academic, holding a diploma and a BSc degree in Civil Engineering from Lakehead University, an MSc in Civil Environmental Engineering from Newcastle University, and an MBA from ALBA (Athens Laboratory of Business Administration).
He is also a certified PRINCE2 and Management of Risk (MoR) practitioner and a proud member of the Technical Chamber of Greece.