REST job server for Apache Spark
Library for building data products
Multi-tenancy and Multi-user Spark server
DataStax Spark Cassandra Connector
Creating reusable workflows for Apache Spark
Sparkling Water provides H2O functionality inside Spark cluster
Livy is an open source REST interface for interacting with Apache Spark from anywhere
Hadoop/Spark on Aliyun, supporting interactions with Aliyun's base services.
SANSA RDF Library
A framework for writing Spark 2.x applications in a pretty way
Calliope is a library integrating Cassandra and Spark framework.
Spark based implementation of the Topological Mapper algorithm
C# and F# language binding and extensions to Apache Spark
Infinispan Spark Connector
Use Scala API to read/write data from different databases,HBase,MySQL,etc.
SnappyData - The Spark Database. Stream, Transact, Analyze, Predict in one cluster
Cask Data Application Platform (CDAP)
Showcase for IoT Platform Blog