Our Legacy in Construction

At K3, we are a family-run construction company based in Thessaloniki, founded by Sotiris Konstantinidis and Dimitris Konstantinidis. With decades of experience, we continue to build on their legacy of quality and reliability. Today, the company is directed by Ion-Anastasios Konstantinidis, son of Sotiris and grandson of Dimitris, who brings a fresh perspective with a background in Electrical Engineering and Computer Science from Aristotle University of Thessaloniki. Together, we combine experience with innovation to deliver outstanding construction services, building not just structures but lasting relationships with our clients.