Sirena-Travel CJSC is provider of technology solutions for distribution of air services  and for non-aviation services as well.
With some of them you can be aсquainted in this section:

"Aeroexpress"

Aeroexpress Ltd. is the operator of air rail link services and offers the  intermodal and commutation  transportation with an enhanced comfort trains. The company  provides services  between Moscow rail terminals and Moscow airports (SheremetyevoDomodedovo and Vnukovo). The company also offers the rail link services to airports of Sochi, Vladivostok and Kazan. Sirena-Travel CJSC enables  E-ticketing for Aeroexpress through Sirena-Travel GDS.

Rail transport

JSC Russian Railways (JSC RZD) is a Russian vertically integrated company, both managing infrastructure and operating freight and passenger train services, one of the three largest transport companies in the world.  The company "Sirena-Travel" provides a solution to sell  carries of "Russian Railways"  on the territory of Russia, CIS and non-CIS countries.

Deutsche Bahn

AccessRail is IATA strategic partner having designator 9B and airline code 450. The company AccessRail (9B) adjust the content of rail carriers for distribution through the air carriage system, including the publication of tariffs in ATPCO, the conclusion of interline agreements with air carriers on their own behalf, and supporting ticket technology.

«AS Premiera»

«AS Premiera» - automated system for ordering and selling tickets for sport and entertainment events. The software complex «AS Premiera» is a unique, modern and versatile tool for placement and implementation of the resource locations of objects involved in the organization and conduct of sports and cultural events.