• ISO 9001:2015
• ISO 45001:2018
• ISO 14001:2015

• BCC: First group of constructions - from second to fifth categories
• BCC: First group of constructions - structures of art. 137, para. 1, item 1, letter "M" and item 4, letter "E" and Item 5 and the letter "E"
• BCC: Second group of constructions - from second to fourth categories
• BCC: Third group of constructions - from second to fifth categories
• BCC: Fourth group of constructions - from second to fifth categories
• BCC: Fifth group of structures

• KRIB
• BAAIK
• AIKB
• KSB

MEDIA COVERAGE

THE KING'S PALACE RECOVERS ITS BRILLIANCE, newspaper Arch&Art, June.2003

The modest ceremony celebrating the completion of the second stage of the facade renovation of the building of the National Gallery and the Ethnographic Museum was attended by Dr. Hans Heinrich von Srbik, chair of the Messerschmitt Foundation, which provided materials for the restoration and conservation works, the vice-minister of culture, Bissera Yosifova, Arch. K. Peev, manager of EKSA LTD - the construction company which executed the restoration, the director of the National Institute for Listed Buildings, Arch. G. Ugrinov, representatives of the National Gallery and the Ethnographic museum, cultural agents, and many journalists.