Semtín: big names, smaller numbers
In the Semtín industrial zone, there are Synthesia, Explosia (the birthplace of Semtex explosives, named after the toponym), and PARAMO. These are historically important chemical companies, but according to the public registry, they have 500–999, 500–999, and 200–249 employees, respectively – fewer than any company on the official list of the largest employers in the district. The reason is partly technical: Synthesia's workforce is divided among three legal entities at the same address – since 2024, Synthesia Nitrocellulose has been spun off, and since 2025, Synthesia Power will be.



