This research delves into the tangible economic impact of Building Information Modelling within the Swedish construction industry, with a particular focus on exploring the relationships among the level of BIM implementation, company size, and the perceived benefits derived from BIM. The study’s methodology involved conducting a questionnaire survey, from which a dataset of 128 responses was collected for comprehensive analysis. The study’s findings challenge prevailing assumptions by suggesting that the size of a company does not necessarily dictate its likelihood of implementing BIM. This contradicts earlier notions that larger companies have a more significant propensity for BIM adoption. Additionally, the research uncovers a positive correlation between higher levels of BIM implementation and the realization of greater benefits. This correlation underscores the potential of BIM in significantly enhancing construction project outcomes. By bridging empirical insights from industry professionals and a robust questionnaire survey, this study provides valuable contributions to the understanding of how BIM can improve performance in the construction sector. These results emphasize the importance of considering BIM’s potential benefits beyond the scope of company size and offer fresh perspectives on the dynamics between BIM implementation and perceived advantages in the construction project context.