Celero Communications, an AI data center infrastructure chip startup, has raised $275 million in Series C funding, achieving a valuation of over $3 billion. The round was led by Atreides Management, Valor Equity Partners, and CapitalG, with participation from existing investors.
TL;DR
- Celero Communications raises $275M Series C at $3B+ valuation for AI optical interconnect chips.
- The company validates the industry's first 2nm coherent DSP silicon, enabling higher-bandwidth, lower-power connectivity for AI systems.
- The funding will accelerate Celero's product roadmap, R&D investments, and production readiness as demand for AI infrastructure grows.
What happened
Celero Communications, a networking chip startup focused on AI data center infrastructure, has secured $275 million in Series C funding, pushing its valuation past the $3 billion mark. The Irvine, California-based company develops coherent digital signal processors that accelerate data transmission over fiber optic cables, a capability critical for AI workloads. The financing brings Celero's total capital raised to $415 million since its founding in 2024.
The round was led by Atreides Management, Valor Equity Partners, and CapitalG, the venture capital arm of Alphabet. Existing investors Sutter Hill Ventures and Maverick Silicon also participated. As part of the deal, Gavin Baker, Managing Partner and Chief Investment Officer at Atreides Management, will join Celero's board of directors.
Alongside the funding announcement, Celero revealed it has successfully validated what it describes as the industry's first 2nm coherent DSP silicon, including DSP processing and advanced analog technology. The company said the milestone 'establishes a scalable foundation for next-generation AI optical interconnects, enabling higher-bandwidth, lower-power connectivity from 1.6T through 3.2T as hyperscale AI clusters and cloud data centers continue to scale.'
Why it matters
The funding will accelerate Celero's product roadmap, R&D investments, and production readiness as demand grows for higher-bandwidth, lower-power optical connectivity across next-generation AI infrastructure. The company is targeting major cloud providers as customers amid surging demand for AI infrastructure.
Global data centers are projected to require nearly $7 trillion in investment by 2030, including approximately $5.2 trillion to support AI workloads, according to McKinsey & Company. Connectivity is emerging as a critical bottleneck as AI infrastructure scales, pushing traditional PAM4 optical architectures toward their practical limits in bandwidth density and fiber scalability.
Celero is positioning coherent connectivity as the foundational technology for the next generation of scale-up, scale-out, and scale-across AI networks. 'The next generation of AI compute will depend on the ability to scale connectivity across increasingly large accelerator clusters,' said James Luo, General Partner at CapitalG. 'Celero's breakthrough 2nm coherent DSP technology provides the essential optical foundation that allows AI infrastructure to scale up and across massive data centers, overcoming the physical limits of last-generation technologies.'
Key facts
- Series C funding: $275 million
- Post-money valuation: Over $3 billion
- Total capital raised: $415 million
- Founded: 2024
- Led by: Atreides Management, Valor Equity Partners, and CapitalG
- Participating investors: Sutter Hill Ventures and Maverick Silicon
- New board member: Gavin Baker, Managing Partner and Chief Investment Officer at Atreides Management
- Key technology: Industry's first 2nm coherent DSP silicon
Context
Celero Communications was founded by industry veterans from Marvell, Inphi, Broadcom, and ClariPhy, with design centers in Canada and Argentina. The company remains privately held with no publicly traded stock, though investor interest in the AI chip sector has been intensifying as hyperscalers race to expand their data center capacity.
The AI infrastructure market is rapidly growing, with data centers projected to require significant investment to support AI workloads. Connectivity is becoming a critical bottleneck, and Celero's coherent connectivity technology aims to address this challenge by enabling higher-bandwidth, lower-power optical connectivity for AI systems.
As AI workloads continue to strain traditional networking architectures, companies like Celero are positioning themselves as key players in the development of next-generation AI data center infrastructure. The recent funding round and technology validation demonstrate Celero's potential to become a significant player in the AI chip market.
