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About us

„TANGRA - AV“ Ltd private family owned company specialized in ventilation, air conditioning and heating equipment... повече »


„TANGRA - AV“ Ltd. was recovered in 1989 by Dipl. Eng July Armianov, as successor of his father company from the late 1930’s. ... повече »


Here you may find advertising and training movies for different processes in connection to ventilation, air conditioning and heating equipment... повече »

Executed projects

Here you may find few of the executed projects by TANGRA team and our partners. For your convenience, they are sorted in different categories: Industrial projects; Public buildings; Office & Administrative buildings; Hotels... повече »


Here you may find references from our partners (investors, construction companies, architects) for successful completion of projects...    повече »


Our certificates are presented here (ISO 9001; ISO 14001; Certificates from Bulgarian Construction Chamber; Certificates from Bulgarian Machine Building Chamber; Certificate from CEIB)... повече »


Awards and prizes received by TANGRA company (German chamber of commerce and industry, Innovative enterprise of 2016, Gold medal from International Technical Fair)... повече »