# 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.

- **Founded:** 2016
- **Headquarters:** Mountain View, California, United States
- **Founders:** Adam Spanbauer (Co-Founder), Andrew Rogers (Co-Founder (ex-Google Wallet engineer)), Gui Bastos (Co-Founder)
- **Team size:** ~54 employees
- **Products:** Build (Meta Agent Builder), Run, Optimize, Channels, Gateway Services
- **Notable:** Named to AVIA Marketplace's 2024 Top Digital Front Door Companies list., Automated 5M+ patient calls annually with a reported 99.99% platform uptime., Acquired Actium Health in March 2024 to combine inbound voice AI with proactive patient outreach.

## Products & services

- **Build (Meta Agent Builder)** — No-code agent builder plus declarative APIs and configuration management so domain experts and engineers can create production-ready AI agents together.
- **Run** — Multi-cloud orchestration across AWS, GCP, Azure, and OCI with failover and elastic scaling.
- **Optimize** — Analytics dashboards, performance metrics, conversation analysis, and A/B testing for agent behavior.
- **Channels** — Voice, SMS, chat, and web agents that meet patients and customers on whatever channel they use.
- **Gateway Services** — LLM Gateway plus STT/TTS gateway services and a vector database that let organizations swap models without re-architecting.
- **Patient Communication AI** — The company's original product line: AI voice agents for health system call centers and medical practices that answer, route, and resolve patient calls.

## Achievements

- Named to AVIA Marketplace's 2024 Top Digital Front Door Companies list.
- Automated 5M+ patient calls annually with a reported 99.99% platform uptime.
- Acquired Actium Health in March 2024 to combine inbound voice AI with proactive patient outreach.
- Raised a $40M Series C led by TCV in April 2022.
- Achieved SOC 2 Type II, HITRUST e1, GDPR, and EU AI Act compliance.

## Latest updates

- **2024-03** — Syllable Corporation acquired Actium Health, adding proactive patient outreach to its voice AI platform.
- **2024-02** — Named to AVIA Marketplace's 2024 Top Digital Front Door Companies.
- **2025-01** — Repositioned around a model-neutral, multi-cloud agentic platform (Build / Run / Optimize) with LLM and STT/TTS gateway services.

## Links

- Website: https://syllable.ai
- LinkedIn: https://www.linkedin.com/company/syllableai
- Twitter/X: https://twitter.com/syllableai
- Facebook: https://www.facebook.com/syllableai

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Profile page: https://yespress.io/syllable-ai
Published by YesPress — https://yespress.io
Last updated: 2026-07-10