LLC Stroygazmontazh, through its subsidiaries, engages in the construction of oil and gas infrastructure in the Russian Federation. Its activities include trunk gas pipeline construction, onshore facilities construction, offshore construction, and gasification of constituent entities of the Russian Federation. 

The company also provides services for various sectors of the construction within the oil and gas industry, including engineering, procurement, field infrastructure development, major repair, and quality control services; and manufactures process equipment for the oil and gas industry, including heat exchangers, special pressure vessels (columns, reactors, and separators), oil pumps, and pipe fittings. 

The company was founded in 2007 and is based in Moscow, Russian Federation. LLC Stroygazmontazh operates as a subsidiary of Milasi Engineering Limited.

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