Agropolichim – Devnia (PBX)

Arexim – Smolian (SCS, PBX)

Assen's Fortress – Assenovgrad (SCS, PBX)

Balkantex – Sofia (SCS, PBX)

HPP (Hidro Power Plant) Rila Group – Sofia (5 PBX in IP miltisite)

HPP Rodopi Group – HQ – Plovdiv (PBX)

HPP Rodopi Group – HPP „Aleko“ – Pazardjik ( PBX)

HPP Rodopi Group – HPP „Peshtera“ (PBX)

HPP Rodopi Group – HPP „Batak“ - Batak (PBX)

HPP Rodopi Group – HPP „Kardjali“ - Kardjali (PBX)

HPP Rodopi Group – HPP „Studen Kladenec“ - Kardjali (PBX)

HPP Rodopi Group – HPP „Devin“ - Devin (PBX)

HPP Rodopi Group – HPP „Teshel“ - Teshel (PBX)

HPP Rodopi Group – HPP „Orfei“ - Krichim (PBX)

HPP Rodopi Group – HPP „Ivailovgrad“ - Ivailovgrad (PBX)

Vivenda – Sofia (PBX)

Vipom – Vidin (PBX)

Darko – Sofia (SCS, PBX)

Dzali – Gabrovo (IP VPN with 3 homogeneous PBXs, SCS, PC’s)

Elektrodi AD – Ihtiman (PBX)

Energoproect, direction „Hydroenergetics“ - Sofia (Electricity, LVS, SCS, PBX)

Erato – Haskovo (2 PBX’s in IP multisite)

Zhiti – Ruse (SCS, PBX)

Hercu Forklifts Manufacturer – Iagoda Village, Plovdiv (PBX)

Factory Constructions Maritza Iztok AD – Sofia (PBX)

Factory Constructions Maritza Iztok AD – Stara Zagora (PBX)

Zahar Bio AD – Ruse (PBX)

Ideal Standart – Sevlievo (PBX)

Ingstroy – Plovdiv (SCS, PBX)

Locomotive and Carriage Works - (PBX)

Natalia MM - (PBX)

Pirinplast AD – Goce Delchev (PBX)

Plastic Products – Sredec (PBX)

Preciz Inter Holding – Ruse (3 PBXs in 30km wireless IP connection between the three offices)

Projectstroy – Gabrovo (M6501, 100 extensions, DID on 4 ISDN BRI/2B+D/ to PSTN, GSM Gateway)

SPARKY/SCORPION SHIPPING – Sofia-Ruse-Lovech-Berlin_Moskow-Kiev (SCS, 8 PBX’s in IP multisite, 1 250 extensions)

Tchugunoleene AD – Ihtiman (PBX)

Uspeh PP – Sofia (PBX)

Holcim –Sofia (PBX)