Dice and Games International place Индустриалан зона Верила, 1229, София, България public https://www.diceandgames.net/bg
Professional College Business & Finance Sofia place Sofia, "Acad. Georgi Bonchev" Str., bl. 8 public http://www.bfc-bg.com/?lang=en
ИНВЕСТОР БГ АД – Инвестор бг place София, бул. Александър Стамболийски 205, ет.8 public http://www.ibg.bg
ALIAS Invest place Sofia, Georgi Benkovski numero 14 public http://www.alias-trade.com/bulga/home_bulg.htm
Institute of Mechanics place Sofia, Acad. G. Bontchev St., bl. 4 public http://www.imbm.bas.bg/index.php/en_US/research-fields
