Embodiments relate to enrichment of a data warehouse utilizing a business compendium. Embodiments may employ a process comprising data standardization and cleansing, de-duplication of entries, and matching and enrichment, followed by manual review of an enriched record by a user. During standardization, data may be transformed into consistent content, placing correct data elements into appropriate fields, removing invalid characters, and/or standardizing names and addresses. Duplicate records are then detected and marked. During matching and enrichment, the existence of an entity (such as a supplier), may be verified by progressive matching against the business compendium. Enrichment may provide additional information regarding the entity (e.g. related to risk, diversity, and bankruptcy). The enriched record is available for manual review, allowing the user to change duplicates, matches, and parent/child linkages. Feedback from the user review may enhance accuracy of subsequent enrichment by self-learning aspects, reducing over time a need for manual review.