Warehouse, lakehouse, or neither yet
A data warehouse stores structured, modeled tables built for reporting. A lakehouse keeps raw files such as documents, logs and exports alongside those tables, so one platform can serve reports and machine learning. For many mid-size Saudi companies a warehouse is enough, and the honest first question is whether you need one at all. If you have one ERP and a handful of reports, a well-built reporting layer on that system may be the cheaper answer.
When a warehouse is justified, we choose by your constraints, not a favorite brand. Microsoft Fabric, Google BigQuery, Amazon Redshift and open-source stacks such as Postgres with dbt and Airflow can all do the job. What decides it is the skills you already have, where data must be hosted, expected data volume and the licenses you own. We document the choice with the alternatives we rejected and why.
