Oatside was founded in Singapore in 2020 by Benedict Lim and launched its oat milk products to the market in 2022, becoming Singapore's first locally founded oat milk brand. The company secured $65.6 million in Series A funding co-led by Temasek Holdings and GGV Capital, enabling rapid regional expansion across Southeast Asia. Oatside oat milk is used by major café chains including Baker & Cook, The Coffee Bean & Tea Leaf, and PPP Coffee, and the brand has extended into vegan ice cream.