About us

Our founders Paul and Ioannis (John) Zannis are both Mechanical and Electrical engineering graduates of National Technical University of Athens and also hold postgraduate degrees (M.S. and Ph.D.). They first started working on MEP design and supervision projects in 1974. In 1987 they founded P-I Zannis and Associates, a company that became one of the leading companies in Greece in MEP consulting and design, offering a wide range of services.

The current company CEO, Michael Zannis, a Mechanical Engineer with B.Sc. and M.Sc. degrees from Yale University (Connecticut, USA), constitutes the next generation whose task is to grow the company in a challenging economic environment.

The company has been awarded the highest grade of license (5th) for the Design and Supervision of MEP engineering projects for the public sector, in accordance with Greek legislation, and is also certified for applying a Quality Management system by complying with the EN ISO 9001:2015 Standard.


In the past years our company has completed more than 250 projects, most of them in Greece, but also in neighboring countries in Europe, Africa and the Middle East.

Project Map

The diversity of our past projects, both in scale - from relatively small to some of the largest and more important in the region - but also in variation - ranging from road tunnels to hospitals and everything in between - has equipped us with the experience and adaptability which enables us to tackle all kinds of MEP projects.

More specific, our past projects include:

  1. Buildings of all types, such as hospitals, hotels and casinos, commercial buildings, theaters and museums, educational buildings, residential projects, transportation terminals, and many more.
  2. Infrastructure Projects, related to transportation, such as roads and road tunnels, railways (conventional and underground) and airport servicing facilities, and also city utility networks, such as city water supply and sewerage networks, and electrical distribution grids.

A sample of some of our most noteworthy projects can be found here