Celestial AI
Intelligence, illuminated.
Santa Clara, United States · Founded 2020 · $597.9M raised
- Headquarters
- Santa Clara, California
- Employees
- 51–200
- Founded
- 2020
- Business Model
- B2B
- Website
- celestial.ai
- Total Funding
- $597.9M
- Last Round
- $65.0M Series CAug 2025
- Rounds
- 6
About
Celestial AI developed the Photonic Fabric, an optical interconnect technology platform enabling high-bandwidth, low-latency connectivity between AI accelerators, GPUs, and memory at package, system, and rack levels. The technology addresses the data movement bottleneck constraining AI infrastructure scaling. Founded in 2020 in Santa Clara, California, Celestial AI was acquired by Marvell Technology in February 2026 for up to $5.5 billion.
Summary
Celestial AI is an Artificial Intelligence company based in Santa Clara, United States, founded in 2020. It has raised $597.9M in total across 6 rounds, most recently a $65.0M Series C round in Aug 2025. Investors include Fidelity Management, U.S. Innovative Technology Fund and AMD Ventures.
Tech & App Stack
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Funding History
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Aug 2025
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Seed through Series C — per-round amounts, valuations, and who invested in each round.
Investors
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