1000 Sofia,
85, Vassil Levski Blvd.  
tel: +359 2 981 0846,
fax: +359 2 980 4396
e-mail: levski@bulstrad.bg
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1000 Sofia,
44, Y. Venelin Str.  
tel: +359 2 980 3900
fax: +359 2 987 2409
e-mail: venelin@bulstrad.bg
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1715 Sofia ,  
district Mladost-4
Business Park Sofia, bl. 4
tel: +359 2 489 9425, 489 9426
fax: +359 2 489 9427
e-mail: mladost@bulstrad.bg
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1330 Sofia,     
Technical Center - 1А, Hashove Str.    
tel: +359 2 911 7550,
fax: +359 2 911 7512
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2500 Kyustendil
10, Lyuben Karavelov Str.
tel: +359 78 55 1502,
fax: +359 78 22 016,
e-mail: kyustendil@bulstrad.bg
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2600 Dupnitsa,
5, Ivan Vazov Str.
tel/fax: +359 701 51 145,
e-mail: dupnica@bulstrad.bg
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2300 Pernik,
20, Krakra Str. 
tel/fax: +359 76 60 0274
e-mail: pernik@bulstrad.bg
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1749 Kremikovtsi,
Botunez, 1, Balkan Str., Bitov kombinat, fl.2   
tel: +359 2 994 3380,
fax: +359 2 935 3275,
e-mail: kremikovci@bulstrad.bg
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