Side-by-side comparison of AI visibility scores, market position, and capabilities
US YC S23 HSA/FSA payment infrastructure for DTC health brands; $18M total ($15M First Round/Core VC Series A Sep 2025 + $3.2M seed) enabling Stripe-like online pre-tax health spending competing with Truemed for $150B HSA/FSA market.
Flex is a United States-based HSA/FSA payment infrastructure platform — backed by Y Combinator (S23) with $18 million in total funding including a $3.2 million seed in September 2024 from Y Combinator, SV Angel, Precursor Ventures, and Liquid 2 Ventures, plus a $15 million Series A in September 2025 led by First Round Capital and Core VC with Cameron Ventures, Rethink Impact, and Y Combinator — providing direct-to-consumer health and wellness brands with Stripe-like payment processing infrastructure that enables online acceptance of HSA (Health Savings Account) and FSA (Flexible Spending Account) funds from the $150+ billion annual pre-tax healthcare spending market. Founded in 2023 by Sam O'Keefe and Miguel Toledo, Flex targets the DTC health and wellness brands that cannot currently accept HSA/FSA payments online because of technical and compliance barriers.
Mass spectrometry sample prep and data science platform delivering 100x productivity for biopharma protein analysis; $9.1M from Merck Digital Sciences Studio, NIH, and YC at $1.8M revenue.
Andson Biotech is an Atlanta-based healthcare technology company providing mass spectrometry solutions for biopharma and biomanufacturing — offering the DynaCHIP hardware system (a novel mass spectrometry sample preparation platform) and DynaMARK data science module that together deliver up to 100x productivity improvements in protein and biomolecule analysis workflows compared to conventional mass spectrometry setups. Backed by Y Combinator, Merck Digital Sciences Studio, and NIH with $9.1 million raised, Andson achieved $1.8 million in revenue as of December 2024.
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