Nexthop AI Accelerates into Hypergrowth with Oversubscribed $500M Series B Funding, Catapulting the Company’s Valuation to $4.2 Billion

Nexthop AI, the leading pioneer of highly efficient AI Networking, led by Anshul Sadana and the team, has announced the successful closure of an oversubscribed $500 Million Series B funding round, catapulting the company’s valuation to $4.2 Billion. This round was spearheaded by Lightspeed Venture Partners, with Andreessen Horowitz joining as a major investor, and participation from Altimeter and all existing investors.

“AI’s rapid growth is reshaping data center networks, creating a $100B+ market opportunity,” said Guru Chahal, Lightspeed Venture Partners. “Nexthop AI combines hyperscale performance, open software, and co-development with top AI operators, positioning it as a leading networking vendor.”

“AI clusters are pushing data center networks to their limits, making networking central to system performance. Nexthop is designed for this shift, combining hyperscale expertise with high-performance, open networking,” said Raghu Raghuram, General Partner at Andreessen Horowitz. “Anshul and the team are addressing a critical AI infrastructure challenge, and the firm is well-positioned to scale.”

Nexthop AI has emerged as a frontrunner in advanced AI and cloud networking, offering off-the-shelf and highly customized switching solutions built on open-source operating systems like SONiC and FBOSS.

“Our focus on innovation and deep customer partnerships has enabled highly customized JDM solutions for major operators and turnkey products for NeoClouds. Partnering with leading AI investors will support scaling the company to the next level,” said Anshul Sadana, Founder & CEO of Nexthop AI.

Nexthop launched products for scale-out, scale-across, and front-end applications in cloud and AI data centers, setting new benchmarks for performance, power efficiency, and deployment speed. The company continues to expand R&D and infrastructure to grow this foundational portfolio in response to rapid infrastructure demand.

“AI datacenter networking is being rearchitected as generative AI drives a new wave of infrastructure buildout. With the market projected to reach $100B by 2031, companies like Nexthop AI can deliver next-generation architectures with advantages in power and cost efficiency. Scale-across networking will be key to enabling large AI clusters while reducing total ownership costs,” said Dylan Patel, Founder of SemiAnalysis.