How Much Did Celestial AI Raise? Headquarters, Funding & Key Investors

Celestial AI has raised a total of $589 million over multiple funding rounds, achieving unicorn status in March 2025. The Santa Clara-based company develops AI-powered optical processing units and high-performance computing solutions leveraging integrated silicon photonics. Its AI accelerators enable advanced data mapping and computing applications across edge computing, AI-native infrastructure, and embedded systems, helping organizations accelerate machine learning workflows and improve computational efficiency.

Keep reading to explore Celestial AI’s funding history, key investors, and what’s next for this photonics and AI infrastructure innovator.

What Is Celestial AI and What Does It Do?

Founded in 2020 and headquartered in Santa Clara, California, United States, Celestial AI specializes in AI infrastructure and high-performance computing solutions using integrated silicon photonics. Its optical processing units and AI accelerators support machine learning, edge computing, and AI-native applications by optimizing data movement and processing efficiency.

The company’s technology helps organizations reduce computational latency, accelerate AI workloads, and enhance performance for embedded systems, digital ICs, and edge computing deployments.

How Much Funding Has Celestial AI Raised?

1. Series A
   • Amount Raised: $50M
   • Date: 2021
   • Motivation: Product development and early client acquisition.
2. Series B
   • Amount Raised: $289M
   • Date: 2023
   • Motivation: Technology scaling, prototype validation, and market expansion.
3. Series C
   • Amount Raised: $250M
   • Date: February 25, 2025
   • Lead Investors: Fidelity Investments, BlackRock
   • Motivation: Global expansion, R&D acceleration, and achieving unicorn status.

Total Funding Raised: $589M

Latest Funding Date: February 25, 2025

Key Investors

1. Fidelity Investments
   • Details: Leading global investment management firm.
   • Investment Focus Areas: AI infrastructure, photonics, edge computing, and growth-stage technology companies.
   • Notable Investments: High-performance computing and AI-enabled startups.
2. BlackRock
   • Details: Global investment management corporation and one of the largest asset managers worldwide.
   • Investment Focus Areas: AI-native technologies, embedded systems, and high-growth tech companies.
   • Notable Investments: Enterprise and AI infrastructure platforms.

Where Is Celestial AI’s Headquarters?

Celestial AI is headquartered in Santa Clara, California, United States, providing access to Silicon Valley talent, AI infrastructure expertise, and strategic technology investors.

What’s Next for Celestial AI?

With unicorn status, Celestial AI plans to expand its AI-powered optical processing units globally, accelerate R&D for high-performance computing, and enable broader adoption of AI-native and edge computing applications. The company aims to push the boundaries of silicon photonics technology and provide organizations with scalable, efficient, and cutting-edge AI accelerators.

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