An important milestone in the development of Czech mining was the turning point in the nineties of the last century, when socio-economic changes occurred that affected all sectors of the economy. As a result of economic transformation, totally new system changes were brought about for mining companies and their management. Mineral extraction and processing has since become a standard business activity.The article is focused on mining companies operating in the CR in the sector of non-metallic and construction minerals. It briefly outlines the development of mining in the CR in the 90's of the last century. The focus of the article, however, lies on the analysis of mining companies extracting non-metallic and construction minerals. The aim was to map the status of these enterprises in terms of their legal status, foreign ownership, capital strength (whether firms have their capital higher than the statutory minimum set forth by the Commercial Code), their activity in mining sectors (which minerals are being extracted by individual mining companies) and the representation of sub-contractors in mining activities. At the beginning of the research, several hypotheses were proposed that were either confirmed or disproved based on a survey and analysis. Although the findings were, in principle, unequivocal, in order to accept or reject the hypotheses, their testing was necessary. In our case, we applied the test of hypothesis related to relative frequency. The analysis results are processed in tables and graphs. The analysis showed that as for the legal form, trade companies clearly prevail and limited liability companies are completely dominating. In terms of ownership of mining firms domestic miners have the largest representation. Manymining companies, however, have a foreign owner. German and Austrian capital being the most represented. Furthermore, the analysis proved that most mining companies operate with a capital that exceeds the minimum limit set forth by Act No. 513/1991 Coll., the Commercial Code, as amended. Most of the mining companies focus on the exploitation of a single mineral only. On examining the representation of ordinary workers and employees of subcontractors, it was found that more and more mining companies outsource mining processes. We can conclude that most of the hypotheses formulated at the beginning of our research were rejected. Established assumptions about the legal status of miners, nationality of holders, disposable capital and the ratio of permanent employees to employees of subcontractors were not confirmed.