Positron AI, a fast-growing innovator in energy-efficient AI inference hardware, has announced that it raised an oversubscribed $230 million Series B funding round, pushing its post-money valuation beyond $1 billion. This major milestone highlights the company’s rising influence in the rapidly evolving AI infrastructure space.
The funding round was co-led by ARENA Private Wealth, Jump Trading, and Unless, with new strategic participation from Qatar Investment Authority (QIA), Arm, and Helena. In addition, existing backers such as Valor Equity Partners, Atreides Management, DFJ Growth, Resilience Reserve, Flume Ventures, and 1517 also joined the round. Altogether, the investment strengthens Positron’s mission to make AI inference more affordable and dramatically more energy efficient at scale.
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“We are grateful for this strong investor interest, which reflects what the market is demanding,” said Mitesh Agrawal, CEO of Positron AI. “Power delivery has emerged as a key bottleneck in AI adoption, and our next-generation chips will deliver five times more tokens per watt than NVIDIA’s next Rubin GPU for key workloads…”
Positron continues to focus on solving the growing infrastructure challenges that come with deploying advanced AI models. Its current flagship product, Atlas, is already shipping as an inference system designed for quick deployment and scalable performance. Notably, Atlas is manufactured entirely in the United States, ensuring supply chain reliability for customers requiring rapid AI capacity expansion.
At the same time, experts emphasize that memory constraints are becoming a defining factor in AI inference workloads. “Memory bandwidth and capacity are two of the primary constraints on scaling AI inference workloads…” said Dilan Patel, founder and CEO of Semianalysis.
Jump Trading Becomes Both Customer and Investor
A key highlight of this Series B round is Jump Trading’s decision to co-lead after adopting Atlas internally.
“For the workloads we prioritize, the bottleneck is increasingly memory and power…” said Alex Davis, CTO at Jump Trading.
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Agrawal also reinforced the significance of this endorsement: “Having a customer become an investor is one of the strongest endorsements we can get…”
Building the Future with Asimov and Titan
Looking ahead, Positron is accelerating development of its next-generation custom silicon platform, Asimov, and its upcoming system, Titan. These products are designed around a memory-first architecture capable of supporting 2 terabytes of memory per accelerator and 8 terabytes per Titan system, enabling next-generation AI workloads such as long-context language models, agent-based systems, and advanced video inference.
“As AI inference scales, efficiency and system design become more important…” said Eddie Ramirez, vice president of Go-to-Market, Cloud AI Business Unit, Arm.
With strong momentum, Positron aims to maintain a rapid development cycle. “Development speed is a critical competitive advantage for us…” said Mitesh Agrawal.
Finally, ARENA Private Wealth underscored Positron’s broader impact on AI infrastructure. “Positron is working to solve one of the most critical bottlenecks…” said Ari Schottenstein.
Through strategic partnerships with leaders like Arm and Supermicro, Positron AI is positioning itself as a major force in delivering scalable, power-efficient AI inference for the future.
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