2010 - National competition "BUILDING OF THE YEAR 2010" – organized by „City Media Group" - the prize „Building of the year 2010“ in category „Culture, arts and religion" is awarded to State Opera building, with contractor "Investment and construction consortium", a member of which is "Montagengineering"JSC.

2010 - Competition of media „Construction and estates“ - Construction company of 2010 г. – 3rd place in category "Non-residential buildings" with contractor "Investment and construction consortium", a member of which is "Montagengineering"JSC.

2011 - Chamber of construction companies in Bulgaria – competition of Chamber of construction companies in Bulgaria - region Stara Zagora awards the prize "Construction company of 2011 for construction projects in all categories" to "Montagengineering"JSC.

2012 - National competition "BUILDING OF THE YEAR 2012" – organized by „City Media Group" - the prize „Building of the year 2012“ in category "Production buildings"is awarded to "Complex installation for natural gypsum calcination" with contractor "Montagengineering"JSC.

2013 - Diploma for Implemented and operating "Good practices" issued by regional club "Health and safety at work", city of Stara Zagora.

2014 - Chamber of construction companies in Bulgaria – competition of Chamber of construction companies in Bulgaria - region Stara Zagora awards the prize "Construction company of 2014" for construction projects in "Power infrastructure".