Siren

Siren Socks helps reduce the risk of ulcers through early detection of potential injuries. Siren socks measure foot temperature to help reduce your risk of ulcers; higher temperatures tend to indicate inflammation and therefore a sign of injury.

Investment Details

Portfolia Fund

Funding Round

Series B

Milestones

Funded in 2020, 2023, 2024

About the Founder

Ran Ma

Ran Ma has a background in biomedical engineering and has been recognized as a leader in health tech innovation. Ma has worked in the Division of Plastic Surgery at the Feinberg School of Medicine and also worked on the Wounded Warrior project, designing bioreactors for burn and war victims.

Real Investors. Real Outcomes.

“I have learned so much about leadership, financial well-being, and the power of connection from the amazing community of women at Portfolia.”

Peggy Northrop

CEO of Watermark and Former Editor-in-Chief of More Magazine, Connecticut

“I love the concept of being able to invest and collaborate with others, mitigating my own risk by investing in a portfolio. It lets me see more deals in the pipeline.”

Chantell Preston

Healthcare Executive, Houston, TX

“I joined because I was excited that the model was more like a mutual fund and offered exposure to so many companies and opportunities to further learning.”

Namrita Kapur

Fellow, Yale School of Management, Boston, MA

“I have learned so much about leadership, financial well-being, and the power of connection from the amazing community of women at Portfolia.”

Peggy Northrop

CEO of Watermark and Former Editor-in-Chief of More Magazine, Connecticut

“I love the concept of being able to invest and collaborate with others, mitigating my own risk by investing in a portfolio. It lets me see more deals in the pipeline.”

Chantell Preston

Healthcare Executive, Houston, TX

“I joined because I was excited that the model was more like a mutual fund and offered exposure to so many companies and opportunities to further learning.”

Namrita Kapur

Fellow, Yale School of Management, Boston, MA

Spotlight

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