About us

Our company SEZ DK a.s. was founded in 1947 as one of the first plants built in the industrialization of Czechoslovakia.

We keep our position as the market leader in the production of electro-installation products in the countries of Central Europe on a long-term basis.

From its foundation, to the present day, we have been building a tradition in the production of electrical installation material. Thanks to a long tradition, experience and state-of-the-art technology in the field of moulding injection, we are consolidating our position as a market leader.

Our production capacities are spread over an area of ​​50,569 m2. Within our production capabilities we cooperate with verified renowned brands.

We are certified for the organization management system ISO 9001, EN ISO 9001:2015.



Our priority is to produce quality products. We use our own development to develop products. Our R&D department and tool shop provide the construction and production of molds and mechanical tools. Our portfolio also includes a moulding injection, galvanizing plant, metal production and assembly.

Complex solutions require the involvement of a team of experts who have experience in the electrical engineering market for several years. We participated in a number of successfully completed constructions.

The R&D department consists of a team of experts who develop new products, so our production is very flexible. Based on consultation with the customer and specification of requirements, the R&D department will prepare a tailor-made solution.

Technological development is an important attribute for us, so we are constantly innovating and investing in technology and production automation.


Years on the market


Countries of the world


Different products

50 569 m2

Production capacities