About Us


With our history starting in 1960, we have been at the forefront of geotechnical testing, conducting a comprehensive range of tests on soil, rock, and geological materials to provide crucial data for engineering and construction projects.

Who we are

In 1960, Elias Sotiropoulos, MSc Geotechnical Engineer, laid the foundation for the first geotechnical laboratory, pioneering a new era in soil and rock analysis. Drawing inspiration from engineering insights gathered at various worksites across the globe, he envisioned a facility dedicated to advancing our understanding of material properties. This visionary initiative marked the beginning of a legacy, as the laboratory became a hub for innovative testing methodologies, contributing significantly to the field of geotechnical engineering.


Today, the laboratory stands as a testament to its evolution, operating within owned facilities nestled in the suburbs of Athens, in Spata. This state-of-the-art lab is now under the stewardship of Elias Sotiropoulos, George Kostogiannis and Geotest Consulting Engineers SA, a well-established brand synonymous with excellence in Geotechnical Engineering. The spacious and well-equipped premises not only reflect the laboratory's commitment to cutting-edge research and testing but also highlight its pivotal role as a flagship entity within the broader scope of our distinguished portfolio.


The technicians and administration operating our geotechnical laboratory, exemplify unwavering dedication to professionalism and excellence. Drawing upon their extensive expertise, the crew showcase a profound commitment to advancing the field of geotechnical engineering. Their meticulous approach to testing and analysis is characterized by precision, thoroughness, and a profound understanding of the intricate complexities inherent in soil and rock behavior. With a collective wealth of experience, these experts continually contribute to the laboratory's reputation for delivering accurate and reliable results, fostering confidence among clients and stakeholders alike. Their commitment to staying abreast of the latest advancements in geotechnical science ensures that the laboratory remains at the forefront of innovation, offering unparalleled insights and solutions for a diverse range of engineering challenges.


Established in 1960.
The lab proudly upholds the esteemed legacy of Sotiropoulos and Associated Ltd.
Over 60 years of success and international recognition.


Meet the Team

Our experts running the laboratory.

George BirbilisLab Director

Overall strategic direction of the activities.

Vassilis KatsosSenior Director

Leadership and guidance to laboratory departments.

Elias KostogiannisSenior Engineer

Seasoned professional with advanced technical expertise.

Spyros LainasSenior Engineer

Seasoned professional with advanced technical expertise.

Konstantinos KaporisFinancial Officer

Guidance and financial planning to facilitate goal achievement.

Kostas GeorgalasSenior Operation Manager

Coordination and optimization in various operational aspects within the lab.

Kostis KallivretakisLab Technician

Operating the lab's specialized equipment and ensuring adherence to safety protocols.

About Us

Our Soil Mechanics and Rock Mechanics Laboratory offers a wide range of services aiming to advance the state of the practice of geotechnical engineering.

Address (Laboratory)

Sotiropoulos and Associates LAB LP
15, Agiou Dimitriou str.
Spata, 190 04
P: (+30) 210 6032 813
E: info@sotiropoulosgeolab.gr

Address (Offices)

Sotiropoulos and Associates LAB LP
46, Patission av.
Athens, 106 82
P: (+30) 210 8213 311
E: info@geotest-eng.gr