- [[Apache Airflow]] - workflows
- [[Apache Arrow]] - in-memory analytics
- [[Apache Avro]] - data serialization system
- [[Apache Calcite]] - high-performance database foundation
- [[Apache Cassandra]] - scalable NoSQL database
- [[Apache CouchDB]] - JSON database
- Apache Couchbase
- [[Apache Derby]] - relational database
- [[Apache Drill]] - SQL query engine
- [[Apache Druid]] - real-time column database
- [[Apache Hadoop]] - distributed processing of large data sets
- [[Apache Hive]]
- [[Apache Iceberg]] - open table format for analytic datasets
- [[Apache Kafka]] - event streaming platform
- [[Apache Parquet]] - column oriented data file format
- [[Apache Presto]] - SQL engine
- [[Apache Pulsar]] - distributed messaging and streaming
- [[Apache Spark]] - engine for large-scale data analytics
- [[Apache Submarine]] - machine learning platform
- [[Apache Superset]] - data exploration and visualization
- [[Apache TinkerPop]] - graph computing framework
- [[Apache Zeppelin]] - embedded notebook
- [[Apache Zookeeper]] - coordination service