Function Health Achieves $2.5B Valuation with $298M Series B Funding

Published
November 21, 2025
Category
Technology
Word Count
383 words
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Function Health has achieved a remarkable valuation of $2.5 billion following a substantial $298 million Series B funding round, as reported by Above the Law. The Austin-based health tech startup, which provides subscribers access to over 160 different lab tests, has now raised more than $350 million since its launch in 2023.

CEO Jonathan Swerdlin emphasized the company's mission to empower individuals with ownership of their health, particularly in light of the fact that nearly half of all deaths in the U.S. arise from preventable diseases.

He pointed out that the current healthcare system is primarily reactive, addressing issues only when they arise, and fails to provide the integrated data necessary for proactive healthcare management. Function Health aims to address these gaps by offering a subscription model priced at $365 per year, which allows access to a range of lab tests and imaging services, including MRI and CT scans.

Function has reported that its members have completed over 50 million lab tests since the platform's inception. Each member receives not only their test results but also personalized health plans that include nutrition and lifestyle recommendations, along with clinician outreach if any results are concerning.

This integrated model is designed to offer a comprehensive view of an individual's health, empowering users to make informed decisions. Additionally, Function Health is set to enhance its offerings by launching a chatbot that will provide recommendations and explanations based on user inquiries regarding test results, as highlighted by STAT News.

However, the company faces scrutiny regarding the scientific validity of some services it provides, particularly for tests that may not be recommended for low-risk individuals. The influx of capital from the recent funding round will primarily support the advancement of Function's AI capabilities, enabling the integration of research with individual data for more personalized health guidance.

Swerdlin noted that over the next decade, there is an expectation that real-world, longitudinal data will revolutionize consumer expectations in healthcare, shifting them from reactive to proactive care.

This evolution presents both an opportunity and a challenge for Function Health as it attempts to validate its model of early detection and prevention in healthcare. The significant funding round underscores a growing interest in health tech startups, reflecting the potential for innovation in delivering healthcare solutions that prioritize preventive care and patient empowerment.

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