Carboni

• place Sofia, 7 Milin Kamak Street, Floor 1
• public http://carboni.bg/en

Tron Ltd

• place Dunavzi village, 25 Izgrev Str.
• public http://www.tronpellets.eu/index_en.html

SUNSYSTEM

• place Sofia, BULGARIA, 12 Madara str
• public http://www.sunsystem.bg/de

SUNSYSTEM

• place Sofia, Vitosha 129 str
• public http://www.sunsystem.bg/fr/index.php