Matrix

Activity from announced rounds

Activity in this selectionAI

Matrix, also historically named Matrix Partners, is the US venture firm associated with investors Matt Brown and Stan Reiss.

Recorded funding activity

Its covered companies include Metriport’s patient-data infrastructure, Light’s retail-energy systems and Delos Data’s inference infrastructure. Sila’s battery technology and Optura’s healthcare AI assessment remain separate company investments in the same firm history.

Sources
Rounds participated in
5
Confirmed lead rounds
—
5 roles undisclosed
New companies
5
First participation on record · 0 follow-on
Funding in participating rounds
$72.5M
4 disclosed · full round size, not this investor’s share

By stage

Series A3
Seed1
Undisclosed1

By primary sector

Edtech2
Healthtech2
AI1

By country

United States5

Rounds

5 in this selection
Delos Data

Delos Data builds an AI inference infrastructure platform spanning cluster software, server systems and data-interface silicon. It connects heterogeneous GPUs, accelerators, memory and storage into a resilient data domain so operators can scale inference workloads with lower latency and avoid interruptions when components or links fail.

>$100MFunding
Role not disclosed
Metriport

Open-source healthcare data infrastructure unifying patient records for clinicians

$26MSeries A
Role not disclosed
Optura

Provides ROAI platform for healthcare organizations to assess AI business value and viability

$17.5MSeries A
Role not disclosed
Giant

Interactive storytelling platform for kids to become cartoon characters and design their own worlds

$8MSeed
Role not disclosed
BoldVoice

Provides AI-powered voice coaching for non-native English speakers

$21MSeries A
Role not disclosed