About Us History Explore the milestones that have shaped SDENG into the company it is today.
Founded 2009
Projects 200+
Countries 20+
Continents 5

How It All Started

In 2008, two highly skilled engineers, Aris Theodorou, a Civil Engineer with over a decade of experience in metal constructions, and Vasilis Gastis, a Mechanical Engineer with equally extensive experience in energy projects, joined forces in Volos.

Their shared passion for innovation led them to explore cutting-edge BIM and 3D-4D-5D modeling technologies for energy constructions. Their efforts quickly caught the attention of multinational companies. When they secured their first project in Eleusina, within just 12 months, they had taken over 55% of the project, marking the birth of SDENG.

 

Where It All Comes From.

Driven by a shared vision, Aris and Vasilis aimed to transform Volos into a hub for energy construction services, attracting milestone international projects.

What began as a humble 3-member team working from a basement has now grown into a thriving company of about 30 talented professionals, contributing to major global energy initiatives. Their journey reflects a deep commitment to innovation, teamwork, and excellence.

 

Milestones

2023

2023 SDENG is engaged in the design phase of the Future Camp Nou, a prestigious global sports project.

2020

2020 The company contributes its design expertise to the Arctic LNG 2 Project, further establishing its international presence.

2019

2019 SDENG opens new offices, marking a significant expansion.

2016

2016 SDENG is involved in the detailed design of the Gas Train 5 Project MMA Refinery, showcasing its expertise in complex refinery systems.

2015

2015 SDENG delivers engineering solutions for the Cessao Onerosa Area Development project in Brazil.

2014

2014 The company provides key design services for the Shah Deniz II project, expanding its portfolio in international energy projects.

2013

2013 SDENG completes the VGO Deep Processing Complex (Stage 1) design and contributes to the engineering of the Baku Olympic

2009

2009 SDENG is founded after they secure their first major project, the Eleusis Refinery Upgrade, initially receiving a small portion of the design from Técnicas Reunidas. Within a year, SDENG manages 55% of the total project’s design work.

2008

2008 Aris and Vasilis meet in Volos and decide to combine their expertise in BIM and 3D-4D-5D modeling. They start working on small projects from a basement.