About us

TANGRA – AV Ltd is family-owned company, specialized in ventilation, air conditioning and heating equipment. In 1989, Dipl. Eng. July Armianov recovered the company of his father, „TANGRA – Lazar Armianov”, which after WW II was nationalized by the government and private business was forbidden in Bulgaria.  

Today TANGRA employs approximately 140 people and has industrial facilities with total floor area around 5000 sq. m. The company uses highest class of production equipment and qualified specialist. In the portfolio of the enterprise are also HVAC design bureau, R&D department and HVAC laboratory, installing and service teams, 3 commercial centres in Bulgaria and wide sales and service network in Europe.

TANGRA is company with a sense of the typical values of the family-run corporations. July Armianov and Ivan Armianov are in charge of the business and management of the enterprise. TANGRA is run in constant striving for development of energy efficient equipment and projects, innovation, and last but not least – maintaining high quality standards.

„We believe that satisfied customers are our best advertisement! “
Dipl. Eng July Armianov

The services in engineering offered by TANGRA include:

  • Feasibility study
  • HVAC design
  • Energy audits
  • Production
  • Sales
  • Installation and execution of projects
  • Service and maintenance
  • HVAC Academy

Trade list:

“TANGRA-AV” Ltd. produce and sale all it’s products under the trade mark TANGRA. Besides them, the company is also an authorized representative for the territory of the Republic of Bulgaria of:

  • Soler & Palau Ventilation Group – Domestic and Industrial fans
  • HITACHI Cooling & Heating – Air conditioning
  • AFS – Flexible ducts
  • Roen Est – Water heat exchangers
  • Nederman – Local extraction
  • Eliturbo – Air mixers
  • Grundfos – Circulation pumps


In all activities of the company a Quality control system ISO 9001 and an environmental management system ISO 14001 has been built. In addition to these systems, the company’s management has developed a consistent policy to improve the quality of products and services to meet all the needs of its customers and their business processes.

Download bried presentation of TANGA [in Bulgarian]

National Service Telephone:
0887 73 73 75