Upscale AI
Unicorn · $2BSanta Clara, US · 15 known investors
Upscale AI builds networking infrastructure purpose-built for AI workloads, including scale-up rack networking (SkyHammer) and open Ethernet fabrics based on NVIDIA Spectrum-X silicon and a SONiC-based network OS. Its full-stack platform spans silicon, systems, and software to connect accelerators, memory, and storage for large-scale AI training and inference.
Also known as Upscale · Upscale AI Inc.
Founders & leadership

Investors · 15
Also in the syndicate · 6
Funding
SEC filings, press & company announcements$190M disclosed across 1 of 4 rounds · 2025–2026
- $190MSeries A-1 extensionJun 2026 · 4 sources
Premji Invest (lead), Maverick Silicon, Mayfield, Nvidia, Prosperity7, Prosperity7 Ventures, Salesforce Ventures, Seligman Ventures, StepStone, StepStone Group, Temasek, Tiger Global
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Valuation · disclosed
Disclosed eventsSource: SEC prospectus filings, and round valuations the company or its investors disclosed — follow each entry's link for the claim.
Company profile
researched Aug 2026Upscale AI is a Santa Clara, California networking company building open-standard infrastructure for AI clusters. Its stated premise is that general-purpose and legacy data-center networks were designed before AI workloads and cannot meet the bandwidth, latency and synchronization requirements of large-scale AI training and inference. The company offers a full-stack platform spanning silicon, systems and software, positioned to scale from single racks to large distributed clusters.
The product line comprises two announced offerings, both listed as 'coming soon' on the company website. SkyHammer is a scale-up, rack-level networking product built from the ASIC up, intended to provide deterministic, low-latency connectivity for tightly synchronized workloads and to reduce communication bottlenecks between accelerators, memory and storage. The scale-out line consists of open, interoperable Ethernet systems built on NVIDIA Spectrum-X switch silicon paired with an AI-optimized, SONiC-based network operating system, aimed at heterogeneous AI clusters. The company's portfolio draws on open technologies and standards including SONiC, Ultra Accelerator Link (UAL/UALink), Ultra Ethernet, and the Switch Abstraction Interface (SAI), and it participates in the Ultra Ethernet Consortium, UAL, the Open Compute Project (including OCP SAI and OCP ESUN) and the SONiC Foundation.
The core technical problem the company describes is interoperability between accelerators from different manufacturers: GPUs largely cannot communicate efficiently unless they come from the same vendor, and NVIDIA's proprietary NVLink and InfiniBand technologies dominate AI data-center networking. Upscale AI's open-standard fabric is intended to let chips from different manufacturers interoperate at full speed, with executives framing the future as heterogeneous systems coexisting rather than replacing NVIDIA.
Founding story
Upscale AI was cofounded by Barun Kar, who serves as CEO, and Rajiv Khemani, Executive Chairman. Kar was a founding team member at Palo Alto Networks and previously oversaw Juniper Networks' Ethernet portfolio. Khemani previously founded Innovium — acquired by Marvell for $1.1 billion in 2021 and described as the only startup in a decade to meaningfully take networking chip market share from Broadcom — and earlier ran Intel's network processing business and served as COO of Cavium. The two joined forces at Auradine, a blockchain and AI chip startup where Upscale AI was incubated, before launching the company publicly in September 2025.
Business model
Upscale AI develops and sells full-stack AI networking infrastructure: switch/ASIC-level silicon, rack-scale and data-center systems, and network software including an AI-optimized SONiC-based network operating system. Its scale-out systems are built on NVIDIA Spectrum-X Ethernet switch silicon, while its SkyHammer scale-up product is described as built 'from the ASIC up.' Sources indicate the company was engaging hyperscaler and neocloud infrastructure providers through customer evaluations and deployments, but do not describe pricing or contract structures.
Not specified in the sources beyond the sale of networking hardware systems, silicon and accompanying software; the company had not released a product as of April 2026 and no revenue figures are disclosed.
Traction
The company reported engagement with several hyperscalers and neocloud infrastructure providers, with customer evaluations and deployments across scale-out and scale-up environments as of June 2026. It had not released a product as of April 2026, and both listed products were shown as 'coming soon.' Headcount grew from 100+ technologists at launch in September 2025 to several hundred employees within a year, and total funding reached $500 million at a $2 billion valuation in under 18 months.
Latest developments
On June 22, 2026 Upscale AI announced a $190 million Series A-1 extension led by Premji Invest at a $2 billion valuation, bringing cumulative funding to $500 million. New investors included NVIDIA, Salesforce Ventures, Temasek and Seligman Ventures, alongside returning investors Mayfield, Tiger Global, StepStone, Maverick Silicon and Prosperity7. The company said the capital will accelerate delivery of its open-standard AI networking products and support engagement with neocloud and hyperscale customers; it also cited the need for a strong balance sheet to secure advanced-node chip supply and production slots booked up to two years ahead. Asked about an IPO, Khemani called it 'an interesting milestone' but suggested larger ambitions. Earlier, in March 2026, the company extended from scale-up into scale-out networking through its NVIDIA Spectrum-X partnership.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Sources position Upscale AI as an early-stage challenger seeking to become the networking incumbent of the AI era, with Fortune drawing an analogy to Cisco and Juniper in the PC-internet era and Arista and Broadcom in the cloud era. As of April 2026 the company had not yet released a product, and both flagship products were still marked 'coming soon' on its site as of the sources fetched. The addressable market is framed by a Dell'Oro Group forecast that spending on AI data center switches will surpass $100 billion annually by 2030, with the five largest tech companies expected to spend roughly $660-690 billion on infrastructure in 2026.
Upscale AI differentiates on open standards and vendor neutrality, contrasting its fabric with proprietary, vendor-locked interconnects such as NVIDIA's NVLink and InfiniBand, and on delivering a vertically integrated stack from custom ASIC through systems and network OS rather than a single layer. It also emphasizes support for heterogeneous compute, allowing accelerators from multiple manufacturers in one cluster. An industry analyst quoted at launch (Alan Weckel, 650 Group) characterized the company as building a level playing field versus closed vendor-locked systems.
Technology
The stack spans custom switch ASICs, rack-scale and data-center systems, and network software. SkyHammer targets scale-up rack networking with deterministic, low-latency connectivity between accelerators, memory and storage, built from the ASIC up. The scale-out line uses NVIDIA Spectrum-X Ethernet switch silicon with an AI-optimized implementation of SONiC, the open-source network operating system used in hyperscale environments. The company's technology is grounded in open standards: SONiC, Ultra Accelerator Link (UALink), Ultra Ethernet, and the Switch Abstraction Interface (SAI), with announced capabilities including a hardened SAI/SONiC-based NOS with in-service upgrades, ultra-low-latency high-bandwidth AI network fabrics, and standards-based rack platforms supporting multivendor deployments.
Go-to-market
The company sells to large infrastructure operators directly, stating it is engaged with several hyperscalers and neocloud infrastructure providers with customer evaluations and deployments underway across both scale-out and scale-up networking environments. Its website offers a demo booking flow. It also builds market presence through participation in open networking standards bodies (Ultra Ethernet Consortium, UALink, Open Compute Project, SONiC Foundation) and through its partnership with NVIDIA on Spectrum-X-based systems.
Hyperscale cloud providers and neocloud AI infrastructure providers operating large-scale AI training and inference clusters, spanning rack-scale training deployments to cloud-scale distributed clusters.
Geography
Headquartered in Santa Clara, California, United States; press releases are datelined Santa Clara. Sources do not describe other locations.
History
Upscale AI was incubated at Auradine, a blockchain and AI chip startup where cofounders Barun Kar and Rajiv Khemani worked together. It launched publicly in September 2025 with more than $100 million in seed funding co-led by Mayfield and Maverick Silicon, with participation from StepStone Group, Celesta Capital, Xora, Qualcomm Ventures, Cota Capital, MVP Ventures and Stanford University, and with a team of 100+ technologists drawn from Marvell, Broadcom, Intel, Cisco, AWS, Microsoft, Google, Palo Alto Networks and Juniper Networks. A $200 million Series A followed in January 2026. In March 2026 the company announced its NVIDIA Spectrum-X-based scale-out fabric. In April 2026 it was reported to be in talks for a third round of $180-200 million at roughly a $2 billion valuation; the $190 million Series A-1 was confirmed on June 22, 2026, bringing total funding to $500 million and valuation to $2 billion in under 18 months.
Risks & controversies
Fortune notes several risks: custom chip design at leading manufacturing nodes costs hundreds of millions of dollars before a product ships, and suppliers increasingly require companies to commit to and pay for production slots up to two years in advance, meaning the $500 million raised will not last indefinitely. Competition is intense — Nexthop AI, a direct rival targeting the same hyperscaler and neocloud customers, raised a $500 million Series B in March 2026 at a $4.2 billion valuation, while Broadcom and NVIDIA have far larger R&D budgets. The open networking standard Upscale AI builds on, backed by AMD, Intel, Google, Meta, Microsoft and 80+ other companies, still needs to prove it can match NVIDIA's proprietary performance in real-world AI training. TechCrunch also observed that the company had raised three rounds in seven months without shipping a product, in a market where valuations can outpace fundamentals.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 8
by search overlapCompanies competing with Upscale AI for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 4
launches, deals, and filingsThe Series A-1 extension brought total funding to $500 million and valuation to $2 billion. Premji Invest led; new investors included Nvidia, Salesforce Ventures, Temasek and Seligman Ventures, with returning backers Mayfield, Tiger Global, StepStone, Maverick Silicon and Prosperity7.
$190M source ↗
Upscale AI announced open, interoperable scale-out AI cluster systems built on NVIDIA Spectrum-X Ethernet switch silicon combined with AI-optimized systems and an AI-optimized implementation of the open-source SONiC network operating system.
TechCrunch, citing a Bloomberg report, noted that Upscale AI announced a $200 million Series A in January 2026, its second round after the September 2025 seed.
$200M source ↗
The Santa Clara-based AI networking company emerged from stealth with a seed round of more than $100 million co-led by Mayfield and Maverick Silicon, and announced plans to roll out AI network fabrics, a SAI/SONiC-based unified network operating system, and AI networking rack platforms.
$100M source ↗
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- Upscale AIupscale.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Upscale AI do?
- Santa Clara startup building open-standard, full-stack AI networking silicon, systems and software for large AI clusters.
- Who founded Upscale AI?
- Upscale AI was founded by Rajiv K..
- Who are Upscale AI's investors?
- Upscale AI's investors include Qualcomm Ventures, Maverick Silicon, NVIDIA, Premji Invest, Prosperity7 Ventures, Salesforce Ventures, Stepstone Group, Temasek and 1 more.
- How much funding has Upscale AI raised?
- Upscale AI has disclosed $190M raised across 1 of its 4 known rounds.
- Where is Upscale AI headquartered?
- Upscale AI is headquartered in Santa Clara, US.





