Nexthop AI Raises $500 Million for AI-Optimized Networking Infrastructure

Nexthop AI raised an oversubscribed $500 million Series B led by Lightspeed Venture Partners, with participation from Andreessen Horowitz and Altimeter. The company builds AI-optimized networking connecting GPU clusters.

Nexthop AI

March 2026

$500 million (Series B)

What Drove This Round?

AI data center networking is a bottleneck — GPU clusters need faster interconnects than traditional networks provide

Founded by Anshul Sadana, 17-year COO of Arista Networks, bringing deep networking expertise

Hyperscalers and AI labs spending billions on GPU clusters but networking hasn't kept pace

Oversubscribed round reflects investor urgency to capture AI infrastructure layer opportunities

Impact Analysis

Nexthop AI's $4.2B valuation reflects the massive opportunity in AI-specific networking infrastructure. As companies build GPU clusters with 10,000+ GPUs, traditional networking becomes a bottleneck. The company's technology enables faster data movement between GPUs, directly improving AI training speeds and reducing costs. The investment signals that AI infrastructure extends far beyond just GPUs.

Source: BusinessWireView original

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