The article aims to identify the leading causes of digital exclusion of innovative enterprises operating in Poland, and to indicate how entrepreneurs understand this exclusion. The study employed a diagnostic survey method, specifically a CAWI interview, to gather data. This was conducted on a random sample of 200 respondents (systematic sampling in layers – layers were the PKD departments), including business owners and managers responsible for computerization/ digitization processes, innovation processes, or project management in companies operating in Poland's most innovative sectors. The survey was conducted in June 2024, covering the entire Poland area (16 voivodeships). The CAWI questionnaire was designed to capture the respondents' opinions using a 5-point scale. The study indicated that digital exclusion is mainly understood as depriving individuals of access to modern information technology (IT), software, and equipment with the help of which various modern technologies can be used, as well as depriving individuals of access to contemporary forms of communication. The main groups of employees responsible for digital exclusion are top managers (board), middle managers, and IT department employees. The leading causes of digital exclusion include the high costs of acquiring and maintaining ICT technologies, techniques, and software and the high costs of training employees to use various ICT technologies, techniques, and software correctly.