- CDM SYSTEMS, Ltd
- Address:4 Lavski Rid, Sofia, Bulgaria
- Rusegaz Ltd
- Address:Philip Stanislavov 5, Ruse, Bulgaria, Bulgaria
- Gordis Ltd
- Address:Kuklensko shousse, Plovdiv, Plovdiv, Bulgaria
- Klimatech AD
- Address:Brodsko Shose N1, Dimitrovgrad, Haskovo, Bulgaria
- Silpa Ltd.
- Address:Ludvico Milanesi 24, Lom, Montana, Bulgaria
- Victory 2000
- Address:Sofia p.o. box 65, Sofia, Sofia, Bulgaria
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