George Varvatsoulis

As an animal feed industry operating 24/7 we are seeking energy saving solutions with guaranteed results. Effective Development provided us with an industrial turn-key solution on LED lighting, helping us save energy and upgrade our facility’s lighting conditions. We anticipate additional upcoming energy efficiency projects.
Our main amphitheater was operating with the same lighting and control equipment for more than 30 years. Effective Development was chosen to renew the amphitheater’s lighting and upgrade the control equipment. Implementation was completed harmonically, while new technology equipment retained the aesthetics of the Foundation. A demanding and composite project was delivered on time with optimum results.

Vassilis Mastrokalos


Mission Statement


Effective Development is a company that stands out for its construction, development, engineering and energy efficiency activities, constituting the reliable ‘one-stop-shop’ partner in project management.

With 15 years of experience, Effective Development delivers high performance projects to help enterprises manage and reduce energy, running costs and environmental footprint in multiple resources (such as electricity, gas, oil and water), guaranteeing maximum savings and top quality results by applying best practices in every project the company takes over.


Effective Development activities and services exceed any border limits.

Through various competitive advantages, Effective Development offers added value, providing a full range of services from building constructions and energy efficiency projects, to an effective consulting and thorough project management.

Effective Development incorporates cutting-edge, innovative technology and implements customizable, turn-key solutions and services to guarantee the maximum results on any project.

Technology Investment

Throughout intense and specialized R&D, Effective Development decided to create DTWISE with the perspective to establish a leading company in technology and innovation, providing total data management solutions for Enterprises, Utilities, Liquid Fuel Distributors and Renewable Sources.