Guimarães, AndréRosivalda PereiraMaria Teresa PereiraAfonso CarvalhoReis, PedroAntonio J. Marques Marques Cardoso2026-04-092026-04-092026-04-03http://hdl.handle.net/10400.19/9763This study examines whether companies’ knowledge of the Industry 4.0 concept, geographic location, and size influence the digital maturity of Portuguese industrial firms. Data were collected through a self-assessment questionnaire based on the IMPULS model and analyzed using ordinal logistic regression and chi-square tests to test three hypotheses. The results show that none of these factors significantly affects digital maturity, suggesting that isolated variables do not fully explain digital progress and that broader contextual elements, such as support programs and internal digital strategies, may play a more decisive role. The study meets its objectives and contributes to understanding digital readiness in the Portuguese industrial context. Future research should incorporate additional variables, employ longitudinal or sector-specific approaches, and utilize qualitative methods to enhance the analysis further.N/AConcept KnowledgeDigital MaturityIndustry 4.0Regional DisparitiesPortugalresearch article2026-04-09cv-prod-501191110.4018/IJBIR.406104