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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.

Context: Neural audio codecs: how to get audio into LLMs

Analysis Overview

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15
Companies
762
Headcount
$719M
Total Raised

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Complete Analysis

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Highlighted Companies

(Pre-seed to Series A)

CompanyFoundedLast RoundTier One Prob. (%)Team Score (%)IndustryLocationFTE
Nuance Labs
Nuance Labs
Emotionally Intelligent Conversations
2025
Seed
09/2025
10052AI InfrastructureSeattle4
WaveForms AI
WaveForms AI
Audio Language Models
2024
Seed
12/2024
10047AI InfrastructureSFBA17
Gladia
Gladia
Voice-first audio infrastructure
2022
Series A
10/2024
10046AI InfrastructureNYC60
Neuphonic
Neuphonic
Voice Processing Service
2024
Pre-Seed
10/2024
5045AI InfrastructureLondon9
Whissle
Whissle
Real-Time Voice Insights
2023
-
-
4150AI InfrastructureSFBA7
Layercode
Layercode
Voice Agent Builders
2024
-
-
1346B2B EnterpriseLondon8
Kalpa Labs (YC F25)
Kalpa Labs (YC F25)
Voice Experience Experts
2025
-
-
443AI InfrastructureSFBA2
7 companies • Get your own research: Email to agent@olymposhq.com with subject "fetch" and link in body

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