Startup profile · funding coverage
Positron AI funding, valuation and investors
Memory-first AI inference hardware and systems designed to serve models without depending on scarce HBM/CoWoS supply chains.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series C / C-1
$875M · September 2026
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$1.1B
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
growth · Reno, Nevada, USA
Investors in latest funding
Lead: NEA , Atreides Management , Valor Equity Partners , Andra Capital , SemiAnalysis Capital , Jim Clark
Overview
Positron AI builds inference silicon and systems aimed at tokens-per-dollar and tokens-per-watt. Atlas, its first-generation system, is deployed at more than 50 racks inside Oracle Cloud Infrastructure with customers including Parasail, Jump Trading, and i3d.net. On September 10, 2026 the company announced $875 million across Series C ($375M at $3.5B pre) and Series C-1 (up to $500M), co-led by NEA, Atreides Management, Valor Equity Partners, Andra Capital, SemiAnalysis Capital, and Jim Clark, at a $5 billion post-money valuation (company PR / Reuters).
Why Positron AI is interesting
Sep 10, 2026 $875M Series C/C-1 at $5B post-money more than quadrupled the February ~$1.06B mark in seven months — with Atlas already at OCI (50+ racks) and Asimov targeted for H2 2027 production on commodity LPDDR5X.
Product & use cases
Atlas inference racks today; Asimov custom silicon (TSMC N3P) and Titan multi-chip systems for long-context / large-parameter serving without HBM dependence.
- Hyperscaler and neocloud inference capacity
- Trading / low-latency inference (Jump Trading named)
- Partners running inference services on Positron capacity (Parasail)
Key facts
- $875M Series C/C-1 at $5B post-money (Sep 10, 2026) — company PR
- Prior: ~$230M at ~$1.06B (Feb 2026, PitchBook via Reuters)
- Atlas: 50+ racks at Oracle Cloud Infrastructure; Asimov tapeout end-2026 / production H2 2027
Funding history (newest first)
Series C / C-1
2026-09 $875M- NEA (lead)
- Atreides Management (lead)
- Valor Equity Partners (lead)
- Andra Capital (lead)
- SemiAnalysis Capital (lead)
- Jim Clark (lead)
Prior
2026-02 $230MMarket / IPO context
Editorial / static context — not a live quote.
Related funding articles
Venture Capital Tracker pieces that cover Positron AI's financing or category context.
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