Firmy-net.cz is a Czech online business directory that helps people find companies, services, and organizations across the country. It operates a network of 18 regional directories, including Usti-net.cz for the Ústí nad Labem area. Listings cover both private businesses and public-sector organizations, arranged using defined criteria to make information easier to browse and compare. Visitors can search by keywords and business category, or narrow results to a particular region.

The directories span a broad range of sectors, including automotive services, finance, housing and real estate, travel, electronics, online shopping, business services, retail, public institutions, hospitality, trades, wholesale, manufacturing, and healthcare. This makes the network useful for discovering providers such as repair services, hotels, shops, and professional firms. Businesses can add a company listing, with free addition promoted on the site, and can use advertising opportunities to reach audiences interested in specific regions or sectors. Firmy-net.cz combines searchable company information with regional news and business recommendations, serving as a practical resource for both consumers seeking local providers and organizations looking to increase their visibility online.