Celero Communications Raises $275M at a $3B+ Valuation
Celero Communications raised a $275 million Series C, bringing total capital raised to $415 million and valuing the AI optical-interconnect company above $3 billion.
TL;DR: Celero Communications announced a $275 million Series C on September 8, 2026. The company said the round brought total capital raised to $415 million and valued Celero at more than $3 billion.
Canonical profile: Celero Communications.
Series C terms
The round was led by Atreides Management, Valor Equity Partners and CapitalG. Celero also named Sutter Hill Ventures and Maverick Silicon among participants.
| Item | Figure |
|---|---|
| Series C | $275M |
| Total capital raised | $415M |
| Valuation | >$3B |
| Date | September 8, 2026 |
What Celero builds
Celero develops coherent DSP silicon for optical interconnects used in AI infrastructure.
As AI clusters scale, networking becomes a first-order infrastructure problem: accelerators can sit idle if data cannot move through the system quickly enough. That is why funding is flowing not only into GPU and data-center companies but also into optical, switching and interconnect suppliers.
The competitive context
Celero belongs in the same broader VCT research cluster as companies such as Cornelis Networks, Fluidstack and other AI-infrastructure suppliers.
That does not mean they sell the same product. The useful common thread is the capital intensity and strategic value of the infrastructure layer around frontier compute.
What is confirmed
The $275M round, $415M total raised and $3B-plus valuation are company-disclosed figures. VCT does not infer a more precise valuation than the company announced.
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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.
