Mos Health secures pre-seed backing to launch AI-driven preventive care in the U.S.
Mos Health, a Polish-American startup developing an AI-powered preventive health and wellness platform, has raised nearly €920,000 (about $1.1 million) in a pre-seed round. The company said the funding will be used to build its MVP, advance its core technology, and kick off initial deployments in the United States.
The round was co-led by SMOK Ventures and Movens Capital, with additional participation from angel investors including Tomasz Karwatka, Piotr Karwatka, and Anna Lankauf, among others.
From personal friction to product thesis
Founder and CEO Patrycja Brzozowska framed the company’s origin around a familiar problem in health and wellness: people often know what to do, but struggle to execute consistently.
“Mos Health was born from my own struggle to stay consistent. I realised that generic advice isn’t enough; we need a system that acts on our data and removes the friction of execution,” Brzozowska said. “We are building the partner I wish I had – one that guides you step-by-step.”
Mos Health positions itself as a preventive health and lifestyle wellness company, aiming to bridge what it calls the “execution gap” between recommendations and day-to-day adherence. The company points to broad U.S. lifestyle challenges as a market backdrop, noting that only about 25% of U.S. adults are sufficiently active and that many diet efforts fail due to difficulty maintaining sustainable routines.
A team with prior exits and consumer scale experience
Brzozowska previously served as COO and a founding team member at Wellbee, a Polish mental health platform for employees that was acquired in 2024 by Benefit Systems. She is joined by Paweł Chrzan, a co-founder of Wellbee, and Paweł Sobkowiak, formerly CTO at Booksy.
For investors, the founders’ track record was a key driver of conviction. Borys Musielak, partner at SMOK Ventures, said the firm moved quickly after meeting the team.
“Serial entrepreneurs with a successful exit in Poland and ambitions for a much larger global win—that’s practically our investment template,” Musielak said, adding that SMOK Ventures backed the company “within days” and is focused on its U.S. expansion plans.
Two pillars: an AI health dashboard and a physical “execution layer”
Mos Health is building what it calls an AI Health Partner, designed to turn a user’s health data into personalised protocols. According to the company, the platform will analyse inputs such as sleep patterns, diet signals, lab results, and data from wearables including Apple Watch and Oura. The output is intended to be tailored guidance that users can follow step-by-step.
The second element is a proprietary supplementation line manufactured with a partner in the United States. The company describes supplements as a physical “execution layer,” meant to align with the app’s recommendations and reduce the friction of acting on those protocols.
The combination reflects a broader trend in digital health toward integrated offerings that pair software insights with products or services that can be delivered repeatedly. For Mos Health, the bet is that pairing personalised recommendations with matched supplementation will improve adherence and make behavioural change easier to sustain.
U.S. go-to-market: B2B2C through employee benefits
Mos Health plans to launch in the U.S. using a B2B2C model, targeting employers that want to offer “health-as-a-service” as part of benefits packages. The company said this approach would allow teams to access personalised protocols and supplements through their workplace, positioning the product as a modern benefit rather than a standalone consumer subscription.
Paweł Chrzan said the U.S. was chosen because of the speed at which innovation can reach both companies and end users, and because workplaces are a practical environment for habit formation.
“We’re starting in the U.S. because it’s a market where innovation reaches companies and users much faster. The employee benefit model is a natural fit for us,” Chrzan said. “We spend most of our day at work, and that’s where it’s easiest to introduce lifestyle changes that actually stick.”
Early commercial traction is already being tested. Mos Health said it has signed its first letters of intent with Bay Area tech startups, suggesting initial interest from employers that already experiment with new wellness benefits.
Advisors with AI and longevity credentials
To support product and market strategy, the startup is working with external advisors including commercial advisor Misa Beach, formerly of OpenAI, and clinical advisor Dr Oliver Zolman, a longevity specialist and co-creator of the Blueprint Protocol with Bryan Johnson.
The company did not disclose valuation details or the precise breakdown of investor allocations. It also did not provide a timeline for broader U.S. rollout beyond its initial deployments and employer-led distribution strategy.
What comes next
With pre-seed capital secured, Mos Health is now focused on building its MVP, refining the underlying technology that turns biometric and lifestyle data into actionable protocols, and validating its employer-first distribution model in the U.S. If the company can demonstrate measurable engagement and outcomes through workplace pilots, it may be able to scale quickly in a market where benefits innovation and preventive health spending continue to rise.
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