Bulgarian Air Traffic Services Authority

Web address:https://www.bulatsa.com/

Sofia Airport - SOF Connect AD

Web address:https://sofia-airport.eu/

AutoSoft LTD

Web address:http://www.autosoftbg.com

SIEMENS

Web address:https://www.siemens.com

Knorr-Bremse Group, Bulgaria

Web address:http://knorr-bremse.com

'Автомотор корпорация' АД

Web address:http://www.citroen.bg

Sofia France Auto АД

Web address:http://peugeot.bg

AEBTRI

Web address:http://www.aebtri.com

Lufthansa Technik Sofia Ltd – Sofia

Web address:http://lht-sofia.com

Transvagon АД – Burgas

Web address:http://transwagon-bg.com

Turbotrucks Bulgaria

Web address:http://ubn.bg

SSAB Bulgaria Ltd

Web address:http://www.ssab.com

Euratek Ltd.

Web address:http://www.skoda-auto.bg

Balkan Star Ltd.

Web address:http://www.balkanstar.com

Bulgaria Air

Web address:http://www.air.bg

DB Schenker

Web address:http://www.dbschenker.com

AVL

Web address:http://www.avl.com

Končar Group

Web address:http://www.koncar.com

MOTO-PFOHE

Web address:http://www.motopfohe.bg

Sofia Diesel Center

Web address:https://sofia-diesel-center.com