- IMPULS Ltd - Specialists in the production of control modules, time - delay meters and hour - meters, automation devices, medical devices, etc.
- Karnes - A representative of the worldwide producers of industrial tools and machineries.
- KMS Engeneering Ltd. - The main activity is designing and manufacturing of automatisation technics in different branch of manufacturing.
- Mechanical service KCM - Installation, repair and service maintenance of mechanical equipment, high pressure vessels and cranes.
- PAPE Ltd. - Production of flexible connections with various applications in the machinery construction, industry, agriculture, and more.
- Petko Petkov-24 - Specializes in repair of Boiler equipment – heating surfaces, pipelines, PF plant, rotating devices and others.
- Problend - Constructing, manufacture, service and innovative production solutions for packaging equipment.
- Techno Machinex Ltd. - Providing custom manufacturing services for the following industries: High-Tech, Electronic, Medical, Communications, Athletics...
- Union Kehlibar - Sesign, constructs and manufactures custom build machines for food packaging.
- VEDI International Ltd., - Trades with metalworking & woodworking machines such as lathes, drilling, milling, grinding, sawing, & bending machines.
- ZIIU - The only Bulgarian producer of measuring and gauging instruments for linear and angular quantities.
- ZMM Ltd - Products are aimed to serve the purposes of wood working, metal-cutting and processing of plastics for window systems.