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📍 Beijing · North ChinaFounded 2022

Position in SVTR

Snapshot 2026-10-20
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Valuation $1.7B(2026-10 · reported)

About

SUNMMIO, founded in 2022 in Beijing, China, develops fully domestically produced 3D computing and inference chips, leveraging 3D stacking and novel architectures to reduce large model inference costs while advancing mass production.

Technology & BusinessWhat · How · Which stage

Stack Layer芯片HighEvidence

全国产 3D 算力/推理芯片,3D 堆叠与新架构降低推理成本

Source:Official site · Updated 2026-09-10 · View source

Technology PathCMOS 数字HighEvidence

全国产 3D 算力/推理芯片,3D 堆叠与新架构降低推理成本

Source:Official site · Updated 2026-09-10 · View source

Deployment云端/数据中心HighEvidence

全国产 3D 算力/推理芯片,3D 堆叠与新架构降低推理成本

Source:Official site · Updated 2026-09-10 · View source

★ SVTR RatingSVTR has evaluated this company

Full tier & rationale — an SVTR Intelligence benefit

Timeline

  1. 2026-10-14FundingPre-A2轮及A轮
  2. 2026-02-13FundingPre-A1轮
  3. 2026-02FundingPre-A轮

Public events aggregated from this page; rating changes are member-only.

Capital graph

CompanyInvestorFounders / teamCo-investment (thicker arc = more shared deals, ×N marks the count)Bigger circle = stronger signal (activity / coverage / interest) · ⛶ fullscreen · scroll / pinch to zoom · hover to highlight · drag nodes · click a node to open its profile

Founders / core team

Investors

Funding history

Comparable companies· by market

This company

  • SUNMMIO

    SUNMMIO, founded in 2022 in Beijing, China, develops fully domestically produced 3D computing and inference chips, leveraging 3D stacking and novel architectures to reduce large model inference costs while advancing mass production.

    Pre-A2轮及A轮 · 2026-10

United States

China

Europe

Other / unspecified

Confirmed rounds only. Matched on subsector, sector, stage and funding scale — each verifiable on the company profiles.

Investors that may fit

Shenzhen Capital Group

11 Compute deals in the last 24 months · 11 in 华北

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中芯聚源

11 Compute deals in the last 24 months · 11 in 华北

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CAS Star

10 Compute deals in the last 24 months · 10 in 华北

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GL Ventures

7 Compute deals in the last 24 months · 7 in 华北

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Inno Angel Fund

7 Compute deals in the last 24 months · 7 in 华北

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IDG Capital

7 Compute deals in the last 24 months · 5 in 华北

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Ranked by each firm’s deals in this sector over the last 24 months, weighted by nearby stage and shared geography. Indicative only — no rating judgment.

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