Syllable

Syllable is a Mountain View, California company that builds, deploys, and manages AI voice and text agents, originally to automate patient communication for health system call centers and medical practices. Founded in 2016, it has expanded from healthcare-specific natural language understanding into a broader, model-neutral agentic platform that lets organizations build agents once and run them across any cloud with governance, analytics, and compliance built in. The company has raised roughly $81.7M+ across Seed through Series C, counts investors like TCV, Oak HC/FT, Verily, and Northwell, and acquired Actium Health in 2024.