31 companies

WIT Software

WIT Software builds AI-powered communications platforms and telecom software, including RCS, 5G New Calling, IP voice and video, IPTV middleware and mobile money, for Tier-1 mobile operators worldwide.

LiveKit

LiveKit provides open source real-time audio and video developer infrastructure and a platform for building voice, video and physical AI agents.

fonio

fonio builds an AI phone assistant for small and medium-sized businesses that answers calls, books appointments and qualifies leads, and is developing an automated CRM system.

Intermedia Intelligent Communications

Founded in 1995, Intermedia Intelligent Communications provides cloud unified communications, collaboration, contact centre, business email and security services to over 150,000 businesses.

Prosper AI

Prosper AI builds conversational AI voice agents that handle patient and payor phone communications for healthcare providers, integrating with EHR and practice management systems.

ai-coustics

ai-coustics, founded in 2021 and spun out of Technical University Berlin, builds real-time on-device speech enhancement SDKs, APIs and models that stabilise audio input for Voice AI systems.

Inworld

Inworld builds realtime voice AI and conversational agent infrastructure for developers, including realtime TTS, speech-to-speech, LLM routing and voice cloning.

Boson AI

Boson AI builds enterprise AI technologies for expressive speech synthesis, audio, agentic systems and large language models, including its Higgs Audio product.

Retell AI

Retell AI builds a platform for creating, deploying and monitoring AI voice agents that handle inbound and outbound customer phone calls.

Tray.ai

Tray.ai provides an enterprise AI orchestration platform, evolved from an iPaaS, connecting 700+ systems to automate workflows and orchestrate AI agents.

Arize AI

Arize AI builds an AI observability and LLM evaluation platform for monitoring, debugging and improving AI agents and AI systems in production.

Pythagoras AI

Pythagoras AI, founded in 2025, builds Clara, an AI agent workforce that performs patient-facing work such as scheduling, care management, screenings, outreach and follow-up for healthcare providers.

Dialpad

Dialpad builds an AI-powered customer communications platform that unifies calling, messaging, meetings and support in one workspace, serving more than 50,000 companies globally.

PubNub

PubNub provides a real-time communication platform and developer APIs for in-app chat, live updates and interactive apps, processing over 3 trillion API transactions monthly with sub-100ms latency.

8x8, Inc. (U.S)

8x8, founded in 1987, provides AI-powered cloud communications and customer experience software, combining contact center, unified communications and CPaaS APIs in one platform.

Gradium

Paris-based AI voice startup building ultra-low latency voice models and real-time APIs for text-to-speech, speech-to-text and voice cloning.

Aircall

Aircall provides a cloud phone system and call center software unifying voice, SMS and WhatsApp with 200+ business app integrations, plus AI call automation tools.

AudioCodes Ltd.

AudioCodes develops voice technology and AI-driven voice platforms for enterprises and telecom operators, covering VoIP, Session Border Controllers, contact center AI and UCaaS interoperability.

Channel Corporation

Channel Corporation (Channel Talk) is a South Korean AI customer communication platform, founded in 2010, offering an AI messenger, live chat, CRM and marketing automation to over 239,000 brands.

Nexthop AI

Nexthop AI builds custom networking hardware, network operating systems and interconnects for hyperscalers and neo-clouds running AI workloads, from silicon to cloud.

Vozy

Vozy is a voice AI platform building contextual voice assistants and conversational AI, including generative AI virtual agents, autonomous collection agents and speech analytics, for enterprises in Latin America and beyond.

Prevalent AI

Respond.io

Respond.io builds an AI-powered platform for managing customer conversations across messaging channels, used by 10,000+ brands in 180+ countries.

gaiia

gaiia builds an AI-driven, cloud-based operating system for ISPs and CSPs, replacing legacy OSS/BSS platforms with unified billing, operations and automation.