Currently TTMD is one of the biggest non-governmental organizations (NGO) in Turkey having more than 2000 professional members of designers, manufacturers, contractors, academicians, policy makers.

TTMD carry out many co-operations with universities and high schools, industry, research institutions, governmental bodies, NGOs and other professional expert groups for the objectives of creating living areas which are environmentally friendly, utilizing the energy more efficiently and having more sustainable buildings and installations in it.

TTMD represents the Turkish engineers in international platforms and keeps being in contact with international professional associations, following the technological developments and transferring them to its members.

TTMD is member of ASH RAE, REHVA and CLIMAMED. In addition to the seminars and courses regularly organized, TTMD organizes also symposium and congresses, publishes journals, books and manuals containing recent information and takes part actively in regulatory and standardization works. Being experienced as a partner in EU Funded R&D projects, TTMD is adding value to the whole process from theory to practice.