SignalFx
SignalFx is a SaaS-based monitoring and analytics company headquartered in San Mateo, California. It provides capabilities for analyzing, visualizing, automating, and alerting on metrics data from infrastructure, applications, microservices, containers, and functions. The platform uses a streaming architecture that separates metric data points into two streams: one for metadata and one for time-series values. These data streams are routed through a pub-sub bus to SignalFlow, an analytics language accessible via the SignalFx GUI and programmable APIs. The platform is designed to process metrics data, capable of handling millions of data points per second at a 1-second resolution, with latency typically less than 2 seconds from ingestion to alerting.
History
SignalFx was co-founded by Karthik Rau and Phillip Liu in February 2013. SignalFx received $8.5 million in a Series A investment from Andreessen Horowitz, with Ben Horowitz joining its board. In 2015, SignalFx received $20 million in Series B funding led by Charles River Ventures, with participation from Andreessen Horowitz, and Devdutt Yellurkar joining its board. In May 2018, SignalFx announced its Series D funding of $45 million led by General Catalyst, with participation from existing investors Andreessen Horowitz and Charles River Ventures. In June 2019, the company raised $75 million in its Series E round led by Tiger Global Management, bringing the company's total funding to $179 million.
SignalFx served customers including Athenahealth, Chairish, Ellie Mae, Carbonblack, Kayak, Shutterfly, Sunrun, and Yelp.
SignalFx was acquired by Splunk on August 21, 2019, for $1.05 billion. The acquisition aimed to enhance Splunk's cloud-native observability and APM capabilities, integrating SignalFx into Splunk’s Observability Suite. The acquisition consisted of 60% cash ($630 million) and 40% Splunk common stock (SPLK). The transaction closed on October 2, 2019.