Upscale AI Raises $190M to Expand AI Networking Infrastructure
Per multiple reports, Upscale AI completed a $190 million Series A-1 extension led by Premji Invest, with participation from NVIDIA, Salesforce Ventures, Temasek, Seligman Ventures, Mayfield, Tiger Global, StepStone Group, Maverick Silicon, and Prosperity7 Ventures (VentureBurn, SDxCentral, FinSMEs). The round brings Upscale's total funding to $500 million and values the company at $2 billion, according to VentureBurn and Dealroom. Reporting by SDxCentral and FinSMEs describes Upscale as developing AI-native networking silicon and a full-stack networking fabric, including a product line called SkyHammer, and taking an open-standards approach around emerging efforts such as ESUN and SONiC. Dealroom and KuCoin report the startup has begun evaluations with multiple hyperscale cloud providers. Editorial analysis: Industry observers view the raise and Nvidia's participation as a sign of growing investor interest in vendor-neutral, high-performance networking for large-scale AI clusters.
What happened
Per reporting from VentureBurn, SDxCentral, Dealroom, FinSMEs, Fortune, and KuCoin, Upscale AI announced a $190 million Series A-1 extension led by Premji Invest, with participation from NVIDIA, Salesforce Ventures, Temasek, Seligman Ventures, Mayfield, Tiger Global, StepStone Group, Maverick Silicon, and Prosperity7 Ventures (VentureBurn; SDxCentral; Dealroom). The extension brings the company's total funding to $500 million and values it at $2 billion (VentureBurn; Dealroom). SDxCentral and FinSMEs report that Upscale is building AI-focused networking switch silicon and a full-stack fabric, and that the company has grown rapidly since its 2025 founding by Barun Kar and Rajiv Khemani (SDxCentral; FinSMEs).
Technical details
SDxCentral reports Upscale is positioning a switch chip line called SkyHammer as an AI-only offering and is building its stack around open efforts such as the Ethernet for Scale-Up Networking (ESUN) consortium and SONiC (Software for Open Networking in the Cloud) work groups (SDxCentral). Dealroom and KuCoin describe the product scope as spanning chips, systems, and software to enable heterogeneous compute to interoperate across AI clusters (Dealroom; KuCoin). Quoted in SDxCentral, CEO Barun Kar characterizes the effort as building a high-performance, open-standard AI fabric for large-scale, synchronized workloads (SDxCentral).
Industry context
Multiple outlets cite market research from Dell'Oro Group forecasting that spending on AI data centre switches could exceed $100 billion annually by 2030, and Fortune and Dealroom report that the five largest tech companies may spend roughly $660 billion to $690 billion on infrastructure in 2026, figures used to frame the scale of the opportunity (Fortune; Dealroom). Reporting in Fortune and Dealroom places Upscale's raise and NVIDIA's investment in the context of persistent industry debate over proprietary interconnects such as NVLink and InfiniBand versus vendor-neutral, open-standard networking.
Editorial analysis
Industry-pattern observations: Historical platform shifts in compute have created opportunities for new networking incumbents, with firms like Cisco, Juniper, Arista, and others emerging as dominant players after prior transitions. Observers following the sector interpret Upscale's rapid fundraising and investor mix as evidence that investors see interoperability at scale as a potential pain point worth backing (Fortune; Dealroom).
Competitive and adoption dynamics
Per Dealroom and Fortune, the most visible adoption hurdle is that incumbent proprietary stacks, led by Nvidia's NVLink and InfiniBand, already enjoy deep integration with GPU ecosystems and hyperscaler deployments (Dealroom; Fortune). Reporting by Dealroom notes Nvidia's participation in the round, while also highlighting that investment does not guarantee partners will avoid competing on networking. SDxCentral reports Upscale has engaged in evaluations with multiple hyperscalers, indicating early commercial traction in trials or proofs of concept (SDxCentral; KuCoin).
What to watch
For practitioners: follow proof-of-concept outcomes with hyperscalers and cloud providers, interoperability test results with GPUs and other accelerators, and early performance benchmarks versus InfiniBand/NVLink as they become public. Track open-standard consortium activity around ESUN and SONiC for technical milestones that would affect multi-vendor fabrics. Also monitor whether Upscale publishes independent latency, jitter, and scale-up synchronization metrics versus incumbent solutions, and whether major hyperscalers announce production deployments that reference open-standard fabrics (Dealroom; SDxCentral).
Bottom line
Per the cited coverage, Upscale's $190 million extension and $2 billion valuation underline investor appetite for infrastructure tooling aimed at the specific networking demands of large-scale AI training and inference. Industry observers note this market is large and contested, and open-standard approaches will be evaluated on interoperability, performance, and integration with existing accelerator ecosystems (Fortune; SDxCentral; Dealroom).
Scoring Rationale
A notable infrastructure funding event: $190M Series A-1 extension at a $2B valuation for an AI networking switch silicon startup backed by NVIDIA, Salesforce Ventures, and Temasek. Practitioners care because open-standard AI fabric interoperability directly affects large-scale cluster design, and the investor roster signals conviction in the space.
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