Sirena-Travel

Sirena-Travel operates GDS of the same name (1H). Sirena-Travel processes more than 55 Million passenger segments annually.
Since 2013 Sirena-Travel has been recognized by IATA as a value member of the Strategic Partnerships program and acknowledged as an NDC capable provider (Level 2).
Sirena-Travel developed Leonardo PSS, holding the key position in the product portfolio of the company. Sirena-Travel provides hosting services to nearly 60 airlines. Sirena-Travel e-commerce solution serves over 440 internet stores of hundreds airlines and travel agencies. Astra DCS developed by Sirena-Travel, installed in more than 260 airports around the World, serves monthly over 80 airlines.

http://leonardo.aero/en/