Yes, a Power BI consultant is skilled in integrating data from multiple sources, such as SQL databases, Excel, cloud platforms like Azure, and third-party APIs. They use Power Query to cleanse, transform, and load data into Power BI, ensuring that disparate data sets are unified for analysis. This enables businesses to gain a holistic view of their operations by consolidating information from various systems. The consultant ensures that data is consistent, accurate, and optimized for reporting, making it easier for businesses to track performance, discover trends, and make data-driven decisions.