Greentop is a privately owned Greek Company. It belongs to entrepreneurs with stake interest on shipping, real estate and construction. Its share capital is contributed by Mr. John Pistiolis (81%) and Bulganoco Holdings Co. Ltd (19%).

Chartered to exploit and develop renewable energy sources from greenfield, the Company mainly focuses on wind and solar projects.
The Company employs highly qualified well recognized professionals with extensive experience and successful carriers in the stream of the Renewable Energy Market and the Construction sector.

Realizing the prospects of renewables in Greece, Greentop exploited various areas with wind and solar potential. Following the required licensing regulations, the Company created a project portfolio of more than 360MW in wind and solar capacity.

8.65 MW Solar & 2,7MW of Wind Projects are in commercial operation whereas all the rest are in the different stages of development or ready to start construction.

Taking advantage of its own construction experience Greentop – acting as an EPC Contractor – has designed, constructed and successfully delivered “turn-key” a large amount of medium to large scale solar projects.

With a team of experienced and highly qualified professionals, Greentop is committed to the provision of integrated services and the implementation of reliable solutions, always aiming at sustainable development and well performing projects.

Values & Vision

People at Greentop are distinguished for their business ethics, integrity and willingness to contribute, by sharing common values and principles.

Our Vision is to grow into a leading Company in Greece, by honoring our principles, through consistency of hard-work, and by pursuing our entrepreneurial profit by setting as our first priority the maximization of gains and benefits for our Investors, the Society and the Environment.

We are motivated by our strong belief that the adoption of renewable energy technology can ensure a better future for the next generations


Greentop Management team has a proven and successful track record in the energy and construction business. Greentop enjoys the benefits of a corporate umbrella with advanced know how and extensive reference of large-scale projects in development, engineering and construction.

Katerina Pistioli


Dipl. El. Engineer

George Drosos

Managing Director

Dipl. Mechanical Engineer AUTh, MBA NTUA

Spyros Bouzas

Accounts Management

Accounting ATEI CG | Non-Executive MoB

Aristotelis Giannelis

Technical Manager

Industrial Design Engineer

Nikos Komporozos

O & M Supervisor

Industrial Chemistry

Maria Simeonidou

Project Development Engineer

Dipl. Mechanical Engineer