Internet of Things technologies offer the interconnection of various sensors through telecommunications networks, which facilitate their integration into IoT applications. This collaboration of diverse technologies provides an unprecedented opportunity to monitor processes with exceptional precision in human history. Currently, a wide spectrum of end devices contributes to the immense potential of these technologies across various industries. Tracking events and processes offers opportunities for better optimization, both in corporate settings and private life. For business, IoT can reveal inefficiencies in established processes, leading to improved performance. For instance, monitoring freezer temperatures and tracking door neglect can reduce cooling costs. On a personal level, IoT can enhance home security or enable remote control of smart devices. In our research, we focused on analysing the utilization of IoT technologies in companies within Slovakia as EU member state. We explored IoT network architecture, communication protocols, and archetypes of companies leveraging or offering IoT solutions. Our study involved collecting primary data through unstructured interviews with respondents from three companies operating in the telecommunications and IoT Technology industry. Secondary data were compiled from information gathered online portals (Statista, Eurostat) regarding the use of IoT technologies in various sectors and EU countries. The findings of case study are that organizational and business structures defined by theoretical models were found to be used in businesses and have direct impact on the number and services structure of IoT services offered by enterprises. Furthermore the local Slovak market adoption of an IoT services in comparison to EU market is limited and requires regionally balanced disbursement of Digital Europe and RRF funds.