Siren, a San Francisco, CA-based medical device company, raised $11.8m in funding.
The round was led by Anathem Ventures, with participation from existing investors DCM, Khosla Ventures, 500 Startups, and Peter Thiel’s Founders Fund. In conjunction with this funding, DCM Partner Jason Krikorian will join Siren’s board and Anathem Managing Partner Crystal McKellar will join Siren as an advisor.
The company has raised $22m across three funding rounds to position itself for commercial expansion, including a previously undisclosed $6.5m Series A in 2018 and a $3.4m seed round.
Founded in 2015 by Ran Ma, Henk Jan Scholten, and Jie, Siren has developed technology to embed microsensors within fabric, allowing for mass production of washable smart textiles with remote patient monitoring applications. Its first commercial product is an FDA-registered temperature monitoring sock that connects wirelessly to a software application, allowing podiatrists to detect early signs of inflammation in patients at risk of developing diabetic foot ulcers.