Manta Cares just locked in a $5.4M seed round, and it lands with the kind of precision that makes the rest of digital oncology sit up straighter. Pear VC takes the lead, Sozo Ventures steps in as co-lead, 1843 Capital adds its early conviction, and Dr. Stanley Marks brings strategic gravity that only the Chair of UPMC Hillman Cancer Center and founder of Via Oncology can carry. What turns this into more than a funding headline is Founder and CEO Samira Daswani, whose journey through stage 2B breast cancer was not an abstract challenge but a lived gauntlet of 123 appointments with 14 clinicians, 7 biopsies, 5 ER visits, 2 insurance plans and 18 infusions that exposed every fracture in oncology navigation. When someone rebuilds their own survival toolkit and the oncology system starts asking for copies, you know a breakthrough is brewing.
There is a quiet elegance in the name Manta Cares, a company designed to help patients glide through waters that never asked for fairness. The Cancer GPS platform started as a paper planner and is now a clinically validated digital ecosystem reviewed by 100+ medical professionals under CMO Dr. Douglas Blayney, whose decades of leadership at Stanford Cancer Center and ASCO give the platform a clinical backbone few startups can claim. Adoption has crossed 8,000 active users, supported by a podcast and newsletter reaching 5,000–7,000 more and a paper planner that has already helped 1,800 patients. When a platform posts an NPS above 80 in a field defined by complexity, that is not marketing, that is resonance.
The Maps, Gear and Guides inside Cancer GPS feel built by someone who lived the chaos rather than someone who studied it. The digital maps for breast and lung cancer give step-by-step clarity. The Gear tools bring order to medication tracking, appointments and symptoms. The Guides replace Dr. Google with clinically validated, 7th-grade-level resources across mental health, financial aid, legal support and real patient needs. With medical information doubling every 73 days and 97% of cancer patients turning to unvalidated sources, timing is not convenience, it is survival.
This round gives Manta Cares the power to widen cancer type coverage, deepen health system integrations, expand beyond the current 8 clinical partners and strengthen collaborations with the 3 top-15 pharma companies already in the mix. It also fuels growth across the team, including engineering leader Toni Batchelli, marketing and PR lead Rodrigo Martinez, design head Katherine Root and founding product manager Edward Yip, supported by a clinical advisory network that reflects both expertise and empathy. The business lesson is simple. When a product is built from lived truth, the market does not need to be persuaded. It recognizes itself in the solution and moves toward it.
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