|Traded as||NASDAQ: CLDR|
Russell 2000 Component
|Products||Hortonworks Data Platform, Hortonworks DataFlow, Hortonworks DataPlane|
Number of employees
Hortonworks was a data software company based in Santa Clara, California that developed and supported open-source software (primarily around Apache Hadoop) designed to manage Big Data and associated processing.
Hortonworks completed its merger with Cloudera in January 2019. 
Hortonworks software was to build enterprise data services and applications such as IOT (connected cars, for example), single view of X (such as customer, risk, patient), and advanced analytics and machine learning (such as next best action and realtime cybersecurity). Hortonworks had three interoperable product lines:
- Hortonworks Data Platform (HDP): based on Apache Hadoop, Apache Hive, Apache Spark
- Hortonworks DataFlow (HDF): based on Apache NiFi, Apache Storm, Apache Kafka
- Hortonworks DataPlane services: based on Apache Atlas and Cloudbreak and a pluggable architecture into which partners such as IBM can add their services.
Hortonworks was formed in June 2011 as an independent company, funded by $23 million venture capital from Yahoo! and Benchmark Capital. Its first office was in Sunnyvale, California. The company employs contributors to the open source software project Apache Hadoop. The Hortonworks Data Platform (HDP) product includes Apache Hadoop and is used for storing, processing, and analyzing large volumes of data. The platform is designed to deal with data from many sources and formats. The platform includes Hadoop technology such as the Hadoop Distributed File System, MapReduce, Pig, Hive, HBase, ZooKeeper, and additional components.
Eric Baldeschweiler (from Yahoo) was initial chief executive, and Rob Bearden chief operating officer, formerly from SpringSource. Benchmark partner Peter Fenton was a board member. The company name refers to the character Horton the Elephant, since the elephant is the symbol for Hadoop.
- "Hortonworks : Quick Facts - Hortonworks". Retrieved 15 July 2017.
- "Feb 2019 Cloudera Hortonworks completed planned merger".
- "Hortonworks upgrades DataPlane Services". Retrieved April 30, 2018.
- Charles Babcock (June 29, 2011). "Hadoop Big Data Startup Spins Out Of Yahoo". Information Week. Archived from the original on July 4, 2011. Retrieved February 21, 2017.
- Sarah McBride and Alistair Bar (April 20, 2012). "Big-data investors look for the next Splunk". Reuters. Retrieved February 21, 2017.CS1 maint: Uses authors parameter (link)
- Joab Jackson (November 1, 2011). "HortonWorks Hones a Hadoop Distribution". PC World. Retrieved October 14, 2013.
- Cade Metz (June 28, 2011). "Yahoo! seeds Hadoop startup on open source dream: Hortonworks hears a Big Data revolution". The Register. Retrieved February 21, 2017.
- "Cloudera and Hortonworks Announce Merger to Create World's Leading Next Generation Data Platform and Deliver Industry's First Enterprise Data Cloud". BusinessWire. Retrieved 3 October 2018.