Z GROUP is a dynamic Greek company, active in the implementation of projects and studies in the field of Energy. Founded in 2009, Z GROUP has a network of offices in Athens and Lamia.

The strategic objective of the company is to provide energy solutions and advisory directions for the creation of sustainable and energy efficient projects that meet the modern needs of its customers, while ensuring a better environment.

The rich experience of the company in Renewable Energy Projects, the high level of specialization, the customer-oriented approach, the excellent quality of the services provided, as well as the number of the projects completed, guarantee the proper design and the efficient operation of each project implemented.

Fields of Activity

  • Energy Services
  • Energy Saving Projects
  • Energy Production
  • Energy Management / ESCO Consulting

Z GROUP is certified according to :


EN ISO 9001:2015.

ΕΝ ISO 14001:2015

OHSAS 18001:2007

ISO 22301:2012

EN ISO 27001:2013

ISO 50001:2011

Dimitrios Zarras: Certifications

  • Certified Energy Auditor (Registration Number 678)
  • Mechanical Engineer NTUA (TEE-TCG (Technical Chamber of Greece) Registration Number 118210),
  • Energy Inspector (Registration Number 15100),
  • A’ Class Studier (categories: 9/ E/M, 27/ Environment),
  • Expert at Athens Court of First Instance and Piraeus Court of First Instance in: E/M, Traffic Accidents-Air Accidents, Environmental Disasters.

Profile – Z GROUP Energy Presentation