G
GradiumGradium builds real-time voice AI infrastructure — low-latency streaming speech-to-text, expressive text-to-speech, semantic turn detection, and voice agent frameworks for developers and enterprises.
3 Pulse stories
Q
QumulusAIGPU-as-a-service cloud provider delivering NVIDIA-based compute clusters for AI training and inference to underserved mid-market and enterprise customers, pursuing a Nasdaq direct listing under ticker QMLS.
2 Pulse stories
Total Raised
$100M
$515M
GradiumQumulusAI
Last ValuationNot disclosed
AI infra
Sector
AI infra
2025
Founded
2019
Paris, France
HQ
Marietta, Georgia
Private
Status
Private
Gradium investors
NvidiaFirstMark CapitalEurazeoXavier NielDST Global PartnersEric SchmidtAmplify PartnersKorelya Capital
QumulusAI investors
ATP FundPermian LabsUSD.AI
Data from Value Add Pulse coverage and company research — see the full threads for Gradium and QumulusAI.