Docs: Add IBM to Iceberg vendors list (apache#12101)

site/docs/vendors.md

@@ -68,6 +68,12 @@ With Dremio, an organization can easily build and manage a data lakehouse in whi
 * [Dremio Sonar](https://www.dremio.com/platform/sonar/) is a lakehouse query engine that provides interactive performance and DML on Apache Iceberg, as well as other formats and data sources.
 * [Dremio Arctic](https://www.dremio.com/platform/arctic/) is a lakehouse catalog and optimization service for Apache Iceberg. Arctic automatically optimizes tables in the background to ensure high-performance access for any engine. Arctic also simplifies experimentation, data engineering, and data governance by providing Git concepts like branches and tags on Apache Iceberg tables.
 
+### [IBM watsonx.data](https://www.ibm.com/products/watsonx-data)
+
+[IBM watsonx.data](https://www.ibm.com/products/watsonx-data) is an open data lakehouse for AI and analytics. It uses Apache Iceberg as a core table format, providing features like schema evolution, time travel, and partitioning. This allows developers to easily work with large, complex data sets while ensuring efficient performance and flexibility. watsonx.data simplifies the integration of Iceberg tables, making it easy to manage data across different environments and query historical data without disruption. 
+
+Developers can leverage the benefits of Iceberg tables and take advantage of high performance compute capabilities like [Velox](https://velox-lib.io/), [Presto](https://prestodb.io/), [Apache Gluten](https://gluten.apache.org/), which are part of the watsonx.data ecosystem.
+
 ### [IOMETE](https://iomete.com/)
 
 IOMETE is a fully-managed ready to use, batteries included Data Platform. IOMETE optimizes clustering, compaction, and access control to Apache Iceberg tables. Customer data remains on customer's account to prevent vendor lock-in. The core of IOMETE platform is a serverless Lakehouse that leverages Apache Iceberg as its core table format. IOMETE platform also includes Serverless Spark, an SQL Editor, A Data Catalog, and granular data access control. IOMETE supports Hybrid-multi-cloud setups.