Company
SignalWire
The communications control plane
Also known as SIGNALWIRE, INC.
- Status
- Operatingas of 2026-09-17
- Business model
- B2B
- Customers
- Companies, from startups to enterprises
- Legal name
- SIGNALWIRE, INC.
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Record updated 28 September 2026
About
Compose AI agents, human agents, and real-time communications into one system you control in code. One programmable platform for everything that happens on a call. Built by the creators of FreeSWITCH.
Funding snapshot
- Total raised
- $26.3MSEC form D sum, as of 2026-09-28Source (opens in a new tab)
- Latest round
- Round, $20M2021-05-26
Funding rounds
- Round, 2021
- $20M2021-05-26, SEC form D sold, 5 investors
- Round, 2019
- $6M2019-07-31, SEC form D sold, 2 investors
- Round, 2018
- $300K2018-03-22, SEC form D sold, 1 investor
Products
- Web
- SignalWire AI Agent Runtime
- Web
- Voice API
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