Transaero is a Russian Airline and it's based in Moscow - Domodedovo airport.
They are using 767-200, 767-300 and 737-700,400,300 (if I am not mistaken) I have flown twice on transaero, once SVO
and once DEM-GWK. Both times they were late out of Moscow by 2 hours. They service were alright and planes were clean. My coworkers are flying regularly to Tashkent and Almaty and they say that business class is pretty nice. There have a website you can check - transaero.ru