SignalFx
U.S. based analytics platform
SignalFx was a cloud-based monitoring and analytics platform now owned by Splunk Inc., who acquired the company in 2019 and integrated its technology into the Splunk Observability Cloud.
Originally founded as an independent SaaS company headquartered in San Mateo, California, SignalFx provided tools for analyzing, visualizing, automating, and alerting on metrics data from infrastructure, applications, microservices, containers, and functions. The system used a streaming architecture that separated metric data into two streams—one for metadata and another for time-series values processed through a publish-subscribe bus and an analytics language called SignalFlow.
History
SignalFx was co-founded by Karthik Rau and Phillip Liu in February 2013. SignalFx received $8.5 million in Series A funding 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; Devdutt Yellurkar joined the 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, Carbon black, Kayak, Shutterfly, Sunrun, and Yelp.
Splunk acquisition
SignalFx was acquired by Splunk on August 21, 2019, for $1.05 billion.
“SignalFx” enters the record as u.S. based analytics platform. Crown Archives preserves that source wording while asking what SignalFx, based and analytics can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 18, 2026. The linked authority identifier is Q24887387. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2019, 2013, 2015 and 2018.
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