Siwei Technology raises $30M for domestic pressure sensor chips
What's the deal? Siwei TechnologyDealroom has a profile for this one. Try Dealroom → has raised nearly US$27.5M in its first equity funding round, backed by five state-owned industrial investors. The round closed in September 2026.
Who's backing it? The investors are Shaanxi Aviation Industry Asset ManagementDealroom has a profile for this one. Try Dealroom →, China State Shipbuilding Corporation Investment, China Guoxin Asset Management, Shaanxi Xixian Fengdong Innovation Investment ManagementDealroom has a profile for this one. Try Dealroom →, and Shanghai Xinsheng Aviation Industry Investment Development.
What does it do? Siwei builds on the MEMS process manufacturing platform of its parent institute, focusing on mid-to-high-end pressure measurement. It aims to become a fully self-controlled supplier of pressure chips and sensor-grade products for core sectors.
What's the endgame? The company handles the full chain, from chip design, fabrication, and packaging to sensor assembly, testing, and application services. It has three product lines: pressure chips, high-precision silicon resonant pressure sensors, and high-temperature silicon piezoresistive pressure sensors.
The signal: The all-state backing — spanning aviation, shipbuilding, and central asset managers — underscores China's push for self-reliant supply of sensor components in critical domains, where imported parts remain a strategic vulnerability.
Image credit: Homedust
