The story begins back in 1985, when Architect Georgios Karagiannis was first hired by technical firm VATHMIDA, seated at 51, Polytechniou Street in Thessaloniki, as an employee of engineers Antonia Petraki and Konstantinos Pratsinakis (whose archive is kept in our office). Then, he founded ATRIUM, a design and construction company that has implemented hundreds of projects so far. Today, Technical Firm ATRIUM is the natural evolution of this story and experience, based on today's technologies and knowledge.

Eleni Karagianni is a Civil Engineer with a master's degree in “Interventions in existing buildings and urban ensembles: Reinforcements, reuse and spatial regeneration”, Energy Inspector, building inspector and judicial expert, registered in the registers and tables of the Court of First Instance of Thessaloniki. .

Our services are accompanied by a team of excellent and experienced associates who are constantly informed about the changes of the Legislation and the developments in the construction industry and are able to undertake all parts of the implementation of a project from the design to the construction with consistency and efficiency.