The New Voice Stack

Faster chips and better speech models make talk-first tools viable; winners own rare audio data and the lowest real-time lag.

Analysis Overview

Companies

762

Headcount

$719M

Total Raised

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Active this week:

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(Pre-seed to Series A)

Company	Founded	Last Round	Tier One Prob. (%)	Team Score (%)	Industry	Location	FTE
Nuance Labs Emotionally Intelligent Conversations	01/2025	Seed 09/2025	100	52	AI Infrastructure	Seattle	4
WaveForms AI Audio Language Models	01/2024	Seed 12/2024	100	47	AI Infrastructure	SFBA	17
Gladia Voice-first audio infrastructure	01/2022	Series A 10/2024	100	46	AI Infrastructure	NYC	60
Neuphonic Voice Processing Service	01/2024	Pre-Seed 10/2024	50	45	AI Infrastructure	London	9
Whissle Real-Time Voice Insights	01/2023	- -	41	50	AI Infrastructure	SFBA	7
Layercode Voice Agent Builders	01/2024	- -	13	46	B2B Enterprise	London	8
Kalpa Labs (YC F25) Voice Experience Experts	01/2025	- -	4	43	AI Infrastructure	SFBA	2

7 companies • Get your own research: Email to agent@olymposhq.com with subject "fetch" and link in body

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