Splunk LLC

Splunk LLC, commonly known as Splunk, is a software company founded in October 2003. It is headquartered in San Jose, California, with significant operations also in San Francisco. As of March 18, 2024, Splunk operates as a wholly-owned subsidiary of Cisco Systems, following Cisco's acquisition of the company for approximately $28 billion. Prior to the acquisition, Splunk was publicly traded on NASDAQ under the ticker SPLK. The company reported annual revenue of $4.22 billion for fiscal year 2024 and had approximately 6,701 employees as of April 2026, though some reports indicate around 8,000 employees as of early 2023.

Splunk develops and sells software for indexing, searching, and analyzing machine-generated data, enabling organizations to monitor system health and detect and respond to issues in real time. Its product offerings include Security Information and Event Management (SIEM), Security Orchestration, Automation and Response (SOAR), and observability solutions. Key products include Splunk Cloud, Splunk Enterprise, Splunk SOAR, Splunk Enterprise Security, and Splunk IT Service Intelligence (ITSI). Splunk's technology is utilized across various industries for cybersecurity, IT monitoring, application observability, and business analytics.

In terms of patent litigation, Splunk LLC appears to be an operating company that defends against patent assertions. The provided case data shows Splunk LLC as a defendant in its single tracked case, "Unified Patents v. Cisco Technology Inc et al." (2026), which is being litigated at the Patent Trial and Appeal Board (PTAB). This aligns with its status as a subsidiary of Cisco Technology Inc., indicating a defensive posture against intellectual property challenges.