SignalWire

SignalWire (operating at signalwire.com) is a cloud communications platform engineered for developers and businesses seeking scalable, programmable voice, video, and messaging solutions. Founded in 2017 and headquartered in Palo Alto, CA, SignalWire disrupts traditional telecom fragmentation by offering a unified, open-source control plane—eliminating the need for stitching together multiple vendor tools. Under the hood, its Software-Defined Telecom Stack leverages APIs and SDKs to integrate broadcast-grade and enterprise-grade communications into custom applications. This empowers developers to build AI-powered voice agents, contact centers, and unified communications without vendor lock-in. Startups and enterprises alike benefit from cost efficiency, global scalability, and the flexibility to embed communications directly into their workflows. Backed by approximately $45M in venture and strategic funding, SignalWire positions itself as a modern alternative to legacy telecom infrastructure.