This study investigates the relationship between customer loyalty and service quality in the context of PLN Icon Plus: Iconnet, emphasizing the critical role of service quality in fostering long-term customer loyalty and satisfaction, highlighting the vital role that service quality plays in promoting sustained customers’ pleasure and loyalty. Understanding the factors that influence loyalty has grown crucial as companies deal with growing competition and customer expectations in a changing market. This study presents a quantitative examination of the correlation between these variables, providing valuable perspectives on how companies may improve their client retention and tactics of relationship-building. In order to provide a diverse sample that accurately reflects the demographic target, data for this study were gathered using a Google Form survey directed at 100 PLN Iconnet customers. Partial Least Squares Structural Equation Modeling (PLS-SEM) was used in the study to assess the significance and strengt