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Fundraising

Ayar Labs

Ayar Labs Raises $155M Series D | Optical I/O for AI Data Centers

San Jose, CADecember 20, 20251 min read
Total Raised
$155M
Latest Round
Series D
Employees
150+

Ayar Labs Closes $155M for Optical AI Infrastructure

Ayar Labs, which develops optical I/O solutions for large-scale AI workloads, has raised $155 million in Series D funding.

The round was led by NVIDIA with participation from Intel Capital, AMD Ventures, Hewlett Packard Enterprise, and GlobalFoundries.

Key Highlights

  • Total funding to date: $371.5 million
  • Strategic backing from major chip makers
  • Addressing AI data center bottlenecks

Company Overview

Ayar Labs is developing optical I/O technology to eliminate bandwidth and power bottlenecks in high-performance computing and AI systems. Their solutions enable faster data movement within AI data centers.

Company Info

Headquarters
San Jose, CA
Team Size
150+
Last Round
$155M(Dec 2025)

Investors (4)

N
NVIDIALead
Lead Investor
AI chip and GPU leader
I
Intel Capital
Strategic Investor
Intel corporate venture arm
A
AMD Ventures
Strategic Investor
AMD corporate venture arm
H
HPE
Strategic Investor
Enterprise technology company

Topics

Series D(267)SemiconductorsAI HardwareOptical ComputingData Centers

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