Sterling Office Istanbul
The Astoria, Tower A
Büyükdere Cad. No.127
34394 Esentepe, Istanbul
T: +90 (0)212 217 1530  
F: +90 (0)212 217 1531  
istanbul@sterlingoffice.com
Sterling Office Sofia
2a Saborna Street
1000 Sofia, Bulgaria
T: +359 (0)2 926 4111
F: +359 (0)2 926 4110
sofia@sterlingoffice.com