SiEngine raises $200M to build custom chips for software-defined vehicles
What's the deal? Chinese automotive semiconductor designer SiEngine Technology has raised US$200 million in equity financing from institutional investors over the first half of 2026. Co-founded in 2018 by Nasdaq-listed ECARX and Arm ChinaDealroom has a profile for this one. Try Dealroom →, SiEngine develops vehicle-grade silicon chips built for ECARX's software-defined vehicle ecosystem. ECARX remains the company's largest single shareholder.
What's the endgame? The two firms have built an integrated system pairing SiEngine's Longying-series chips with ECARX's Antora central computing platforms. Antora solutions running the 7nm Longying I chip already ship in dozens of models, including Geely Galaxy, Lynk & Co, and FAW Hongqi.
What's next? SiEngine's new 5nm Longying II chip integrates native large language model support and higher AI compute, built for ECARX's next-generation platforms and Flyme Auto OS. The capital will fund further R&D, production capacity, and international customer growth.
The partnership now spans passenger vehicles, commercial fleets, and L2 to L4 intelligent driving. ECARX and SiEngine have secured a multi-year supply agreement with a major global automaker.
By the numbers: ECARX technology is deployed across more than 11 million vehicles and partnered with 18 automakers and 28 brands. The round ranks in the 93rd percentile among late-stage VC deals in China's transportation sector over the trailing 48 months, based on a sample of 143 rounds.
The signal: The deal reflects a broader push toward vertical integration in China's auto industry, where carmakers and their affiliates are building custom silicon to cut costs and control the full stack from chip to software.
Read more: PR Newswire
Image credit: Generated with Gemini
