| Company | Bulgaria | Serbia | Romania | Greece | Turkey | Bosnia | Montenegro | N.Macedonia | Albania | Kosovo |
| ADVANS - SPAS KOSTADINOV | x | x | x | x | ||||||
| Amandus Kahl GmbH & Co. KG | x | x | x | x | x | x | x | x | x | |
| Arexman Construct Srl/ iSentinel | x | x | x | x | x | x | x | x | x | x |
| Atrea Bulgaria Ltd | x | x | ||||||||
| B M Leasing Trade AD | x | |||||||||
| Balkanika Energy Plc | x | x | x | x | x | x | x | x | ||
| Comicon Ltd. | x | x | x | x | x | x | x | x | x | x |
| Concrete Solutions Ltd. | x | x | x | x | ||||||
| CS Development OOD | x | x | x | x | ||||||
| Elte GPS sp. Z o.o. | x | x | x | x | x | x | x | x | ||
| E-Mountainbike OOD | x | x | x | x | x | |||||
| Energy Agency of Plovdiv | x | x | x | |||||||
| EREMA Engineering Recycling Maschinen und Anlagen GmbH | x | x | x | x | x | |||||
| EUROPLAST KunststoffbehÀlterindustrie GmbH | x | x | ||||||||
| Gebruder Paschev | x | x | x | x | x | x | x | |||
| Green Embedded Systems Ltd. | x | x | x | x | x | x | x | x | x | x |
| Intracom S.A. Telecom Solutions | x | |||||||||
| Kawasaki Gas Turbine GmbH | x | x | ||||||||
| KBE BIOENERGIE d.o.o./ KOHLBACH GROUP | x | x | x | x | x | x | x | x | x | |
| KRICKL WAAGEN SYSTEME / KWS GMBH | x | x | x | x | x | x | x | x | x | x |
| Kuore Term Ltd | x | |||||||||
| LIFE Programme | x | x | x | x | x | x | x | x | x | x |
| Lindner-Recyclingtech GmbH | x | x | x | x | ||||||
| M&M Fruit LTD | x | x | x | |||||||
| Mechanical Solutions Ltd. | x | x | ||||||||
| MOLINARI S.R.L | x | x | x | x | x | x | x | x | ||
| National Cluster for Intelligent Transport and Energy Systems (NCITES ) | x | x | x | x | x | x | x | x | x | x |
| Novonetics EOOD | x | |||||||||
| Omnia Contractors OOD | x | x | x | |||||||
| Prime Technologies Ltd. | x | x | ||||||||
| Proximus Engineering Ltd. | x | x | x | x | x | x | ||||
| RITMIC COM S.R.L | x | x | ||||||||
| Ruvex Corp. | x | x | x | |||||||
| Uniconfort Srl. | x | x | ||||||||
| Veldim All In One Solution Vaios | x | x | x | x | x | x | x | x | x | x |
| Vivalux | x |