NAVER D2SF, the corporate venture capital arm of NAVER, has made a follow-on investment in Soundable Health, a health tech startup leveraging AI-powered acoustic analysis to enable clinical-grade diagnostics through everyday devices. Having participated in Soundable Health's seed round in 2019, NAVER D2SF joined this Pre-Series A round, citing the company's demonstrated product-market fit (PMF) and strong growth trajectory in the U.S. healthcare market.
Soundable Health has developed proprietary AI models that analyse acoustic signals generated by the human body to monitor health conditions. Its flagship product, proudP, is a clinical-grade solution that analyses urine flow sounds to assess and track urinary symptoms associated with conditions such as benign prostatic hyperplasia (BPH) and overactive bladder (OAB). Built on a dataset of over 500,000 real-world home tests, the smartphone-based solution achieves 97 per cent accuracy without requiring specialised hardware.
As an FDA Class II medical device, proudP delivers clinical-grade measurements while meeting stringent standards for quality and data privacy. By removing the need for clinic-based equipment, the solution significantly improves accessibility, enabling patients to perform uroflowmetry tests conveniently at home.
To date, proudP has been adopted by over 130 urology clinics and 50,000 patients across the United States, with continued growth in both direct-to-consumer usage and long-term engagement. In 2026, the company expects accelerated adoption as the service becomes eligible for insurance reimbursement, including Medicare. Soundable Health is also expanding B2B partnerships with global pharmaceutical, medical device, and consumer electronics companies, while extending its platform to adjacent areas such as respiratory monitoring through cough analysis.
The Soundable Health team brings deep expertise across AI, data science, and healthcare. From the start, the company has validated its technology through rigorous clinical and commercial execution in real-world healthcare settings.
"As populations age globally, there is a growing need for simple, continuous, and accessible health monitoring. We see acoustic AI as a foundational technology for the ageing space—enabling earlier detection, better chronic care management, and more independent living," said Catherine Song, PhD, Co-founder and CEO of Soundable Health. "With expanding insurance coverage and B2B partnerships in 2026, we are positioned to scale this capability across urology, respiratory health, and beyond."
