Splunk

Leading provider of data platform solutions for security, observability, and IT operations, now operating as a Cisco subsidiary

Splunk is a data platform company that specializes in collecting, indexing, and analyzing machine-generated data from websites, applications, servers, networks, sensors, and mobile devices. While Splunk is not primarily an AdTech company, it serves the advertising technology ecosystem by providing observability, security, and analytics capabilities that help AdTech companies monitor their infrastructure, analyze user behavior, detect fraud, and optimize ad delivery systems. The platform enables real-time monitoring and historical analysis of large volumes of data, making it valuable for AdTech companies managing complex programmatic advertising systems, tracking campaign performance, and ensuring system reliability. Founded in 2003 and headquartered in San Francisco, Splunk went public in 2012 and became a leader in the log management and security information and event management (SIEM) space. In 2024, Splunk was acquired by Cisco Systems for approximately $28 billion, becoming a subsidiary of Cisco. The company continues to operate as a distinct entity within Cisco, maintaining its brand and product portfolio while benefiting from Cisco's enterprise relationships and go-to-market capabilities. Splunk's platform remains widely used across industries including technology, finance, retail, and telecommunications, with particular relevance to AdTech companies requiring robust data analytics and monitoring solutions.