AI voice agent vendor directory
17 AI voice agent platforms grouped by category — developer platforms, no-code builders, enterprise customer service, sales voice agents, voice infrastructure and AI receptionists — each with every review, pricing breakdown and comparison we've published.
Developer platforms
APIs and SDKs for building custom phone and voice agents.
No-code builders
Visual builders for launching voice agents without engineering.
Enterprise customer service
Voice AI for large contact centers and customer-service operations.
PolyAIpoly.aiEnterprise voice assistants for customer service.Profile and peers
Parloaparloa.comAI agents for enterprise customer-service calls.Profile and peers
Cognigycognigy.comEnterprise conversational AI for contact centers.Profile and peers
Sierrasierra.aiConversational AI agents for customer experience.Profile and peers
Kore.aikore.aiEnterprise conversational and agentic AI platform.Profile and peers
Sales & GTM voice agents
Voice agents for inbound qualification, speed-to-lead and outbound sales calls.
Voice infrastructure
Speech, realtime-media and open-source building blocks behind voice agents.
ElevenLabselevenlabs.ioVoice AI platform with speech models and conversational agents.Profile and peers
Deepgramdeepgram.comSpeech-to-text, text-to-speech and voice agent APIs.Profile and peers
LiveKitlivekit.ioOpen-source realtime media platform with an agents framework.Profile and peers
Pipecatpipecat.aiOpen-source framework for voice and multimodal agents.Profile and peers
Hume AIhume.aiExpressive voice AI models and an empathic voice interface.Profile and peers
AI receptionists
Answering and booking agents for small businesses.