Companies are staffed by specialists who have big practical experience in the field Of constructing and exploitation of objects of transport infrastructure in OJSC Russian Railways, PJSC «Gazprom», Russian Ministry of Defense and took part in implementation of the following projects:

- modernization of the BAM and TRANS-Siberian railway infrastructure;

- operation of railway infrastructure facilities included in the Yamal Megaproject of Gazprom»;

device of airfield concrete pavement of the runway aviation training complex of the Navy of the Russian Federation (NITKA) in the city of Yeysk.


Group of companies

JSC «SU-305», JSC «SU-305» was founded on May 7, 1939 to be the second construction area of Construction 75. In the postwar years the company was aimed at recovering railways and enterprises all over northwest: in Pskovsky, Novgorodsky, Kalininsky, Murmansky, Leningradsky regions, in Tihvin and Leningrad. Компания выполняет Company covers the whole complex of construction and installation works in both civil and industrial construction.

LTD «Dorstroy XXI»

The company «Dorstroy XXI» has a lot of experience in constructing and servicing railway infrastructure.


LTD «Aktiv»

LTD «Aktiv» specializes in constructing and repairing of airports and airfields, constructing and overhauling roads, constructing buildings and facilities, preparation works and excavations, stiffness of reinforced concrete constructions.

Integrated project management, design, construction of water and municipal infrastructure


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