TechFlow, September 19 — According to an official announcement, Bitlight Labs, the infrastructure provider for the RGB protocol, has completed a $9.6 million Pre-A funding round led by Amber Group and Fundamental Labs.
Other investors participating in this round include UOB Venture Management, Signum Capital, Ark Stream, Sidedoor VC, Outliers Fund, Taisu Ventures, HV Capital, SuDo Research, Q42, Skynet Trading, Stakez Capital, and Gate Ventures.
The funds will be used to develop production-grade RGB-Lightning integration technology and build native Bitcoin stablecoin rail infrastructure. The project aims to advance Bitcoin, the Lightning Network, and the RGB protocol by providing wallets and merchants with autonomous, low-fee settlement solutions.




