Belassitsa JSC is a company producing and offering measure appliances for hot and cold water, gas, electrical appliances, stand apparatus and providing services in the field of measure appliances control, ensuring guarantee and not repairs.

ZIIU Standart Plc. is specialized in projecting and production of instruments for linear, angular, profile and special measurements used in mechanical engineering.

NAIDEN KIROV JSC is a Bulgarian leading manufacturer of low-voltage electrotechnical accessories for house holding.

The main production directions of USPEH SSB HOLDING Ltd. are vast line of electrical installation articles, metal packing for the feeding industry, filters for internal engine combustion and air-conditioning systems, etc.

Elprom-Elin Co. was founded in 1967 as a producer of electric installation materials on porcelain base. Afterwards started the production of materials on plastic base as well.