SignalWire is an enterprise CPaaS that delivers advanced FreeSWITCH-as-a-Service through an elastic-cloud framework and developer-friendly APIs.

SignalWire is the Original Geeks of software-defined telecommunications and developers of the number one open-source enterprise communication platform

SignalWire was founded in 2017 by Anthony Minessale, Evan McGee and Sean Heiney. The company is headquartered in Palo Alto, California.


SignalWire's singular focus has been on the democratization of communications applications, and it is now building the infrastructure for Telecom 2.0, the next generation of modern telecommunications technologies.


SignalWire's elastic cloud network provides maximum reliability and scalability for your mission-critical communications. Our powerful APIs and SDKs make it easy to add communications capabilities to any application in any programming language.


SignalWire's core technology allows developers to seamlessly integrate APIs and SDKs into products that consume fewer engineering, bandwidth, and processing resources. Its technology is proven and trusted, already deployed by over 5000 commercial enterprises around the world.


SignalWire is backed by Prosperity7 Ventures, Storm Ventures, Samsung NEXT, Sequoia Capital, AME Cloud Ventures, and others. The company raised $30M in a Series B round on June 02, 2021. This brings SignalWire's total funding to $41.6M to date.



  • Year founded: 2017
  • Funding Info: $41.6M over 3 Rounds (Latest Funding Type: Series B)
  • Yearly Revenue: NA
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: Palo Alto
  • State: California
  • Country: United States
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