Tisiwi (also known as Tisiwi Ventures / ) is a China-based early-stage angel and venture investment firm founded around 2010 and headquartered in Hangzhou. The firm focuses primarily on early-stage Chinese internet and mobile companies, particularly startups in software, digital platforms, and consumer internet sectors. It operates as an angel investment platform providing seed capital and early-stage support to startups, often participating in very early financing rounds. Tisiwi also plays a role in ecosystem development by supporting Chinese internet entrepreneurship through mentorship, consulting, and network access. Its investment activity is concentrated in the Chinese domestic startup ecosystem, with a focus on identifying and backing early high-growth technology companies.