Drawing from our long and diverse experience in the design and implementation phases of MEP projects, we offer a complete range of services related to the field, such as:

  • Building MEP design and works supervision
  • MEP Infrastructure projects design and works supervision
  • LEED projects
  • Building Energy Modeling
  • Engineering consulting
  • Project Management
  • Building permits
  • Feasibility studies
  • MEP Design peer reviews
  • Building Energy Efficiency Certificates


P-I Zannis & Associates holds licenses for the Design of engineering projects for the public sector from the Ministry of Infrastructure & Networks, in accordance with Greek legislation.

MEP projects5th class (the highest)
Industrial projects4th class
Energy projects1st class

In the recent past, we have been awarded the MEP design for numerous projects from most Ministries of the Greek Government, and various other independent public sector organizations, such as the Civil Aviation Authority, the Greek National Tourism Organisation, the Athletics Secretary General, etc.

Also, through our membership in U.S. Green Building Council, our LEED accredited engineers are able to continually explore new ways to incorporate green building concepts in all of our designs, whether they pursue LEED certification or not. Our goal is to work closely with architects, owners and developers in order to find synergies between different building systems, so that we can construct more efficient buildings, with healthier and happier occupants, while lowering operational costs and environmental impact.


Finally, we are proud to be holding an EN ISO 9001 Quality Management Certificate for more than 20 years, and have recently acquired an EN ISO 14001 Environmental Management System certificate.

The current Quality Management System version (ISO 9001:2015) has been adapted to our company in order to ensure that it adds value to our services, resulting in higher productivity and better quality deliverables to our clients.

private clients

ISO 9001: 2015
Quality Management System

ISO 14001: 2015
Environmental Management System

Quality & Environmental Policy Statement