Flex (YC S23)

Flex (YC S23)

Financial Services

San Francisco, CA 1,330 followers

HSA/FSA payments, simplified.

About us

Flex is a payment platform for businesses to accept HSA/FSA cards. We offer a prebuilt, hosted checkout page or UI building blocks to integrate HSA/FSA payments directly into your existing flow.

Industry
Financial Services
Company size
2-10 employees
Headquarters
San Francisco, CA
Type
Privately Held
Founded
2023

Locations

Employees at Flex (YC S23)

Updates

  • View organization page for Flex (YC S23), graphic

    1,330 followers

    🍼 We’re excited to announce our partnership with Milkify, the professional breast milk freeze-drying service! Milkify turns breast milk into a convenient, long-lasting powder, preserving 100% of its nutrients and extending its shelf life to an impressive three years. 👩⚕️ Milkify’s safe, contact-free process keeps your milk pure with no additives or preservatives—just your milk in its most convenient form. Perfect for travel, reclaiming freezer space, or enhancing storage flexibility, Milkify is a game-changer for parents. 💖 A big thank you to Pedro Silva and the Milkify team for making baby nutrition easier for parents everywhere! Click the link in the comments to learn more and use your HSA/FSA. #Flex #Milkify #HSA #FSA #BreastMilk #FamilyHealth #WellnessTech

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    1,330 followers

    🎃 Don’t let the costs of feminine hygiene products give you a scare this Halloween! Flex’s blog dives into HSA/FSA-eligible feminine care—from period products like tampons and pads to wellness items for comfort and hygiene. 👻 Discover how your HSA/FSA can help you manage these essentials and keep both your health and budget in check. Click the link in the comments… if you dare! 🧛♀️ #Flex #HSA #FSA #WomensHealth #FeminineCare #Halloween #SpookySavings #BudgetFriendly

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  • View organization page for Flex (YC S23), graphic

    1,330 followers

    💞 We’re excited to announce our partnership with Kindred Bravely, a brand dedicated to supporting moms through every stage of the motherhood journey! Since 2015, Kindred Bravely has been the go-to for comfortable, functional maternity and breastfeeding clothes—created by moms, for moms. 👩🍼 As a female-founded and led company, Kindred Bravely understands the ups and downs of motherhood firsthand. From their commitment to generous giving to empowering moms with confidence, they embody values that truly resonate. ✨ A big thank you to Courtney Lear Wallace and the Kindred Bravely team for uplifting moms everywhere! Click the link in the comments to explore HSA/FSA eligible products by Kindred Bravely. #Flex #KindredBravely #HSA #FSA #Motherhood #MaternityWear #WellnessTech #SupportMoms

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  • View organization page for Flex (YC S23), graphic

    1,330 followers

    👩⚕️ We’re excited to announce our partnership with Daye! Daye is raising the standards in gynecological health by creating innovative products and services that fit conveniently into our lives. ✨ Committed to advancing gynae health, Daye invests heavily in R&D, pioneering solutions like their cannabinoid-coated products and the award-winning Diagnostic Tampon for STI and HPV screening, recognized as a TIME Invention of the Year 2024. 💞 A big thank you to the Daye team for transforming everyday health solutions. Click the link in the comments to use your HSA/FSA and save with pre-tax dollars. #Flex #Daye #HSA #FSA #WomensHealth #WellnessTech #GynecologicalHealth #HealthInnovation

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  • View organization page for Flex (YC S23), graphic

    1,330 followers

    🚀 Are you a driven engineer ready to shape the future of HSA/FSA payments? Flex is hiring! We’re looking for an exceptional engineer to help us build the highest-converting HSA/FSA checkout experience and design seamless, scalable solutions for our customers. In this role, you’ll collaborate across teams, work with technologies like NextJS, Rust, and AWS, and directly influence our roadmap. If you’re passionate about product-driven tech, thrive in dynamic environments, and have 3+ years of engineering experience, we want to hear from you. Click below to learn more and apply!👇 https://lnkd.in/gVdr7Efp #Flex #JobPosting #EngineeringJobs #HSA #FSA #YC #HealthTech

    Software Engineer at Flex | Y Combinator

    Software Engineer at Flex | Y Combinator

    ycombinator.com

  • View organization page for Flex (YC S23), graphic

    1,330 followers

    🧂 We’re excited to announce our partnership with Saltivate, the clean electrolyte solution! Packed with 800mg of sodium per serving, Saltivate offers 4x more electrolytes than leading sports drinks with zero sugar and no artificial ingredients—perfect for those looking for effective, healthy hydration. 💪 Whether you’re recovering from a workout, fasting, or following a keto diet, Saltivate helps you stay hydrated with the essential electrolytes your body needs. And now, Saltivate is HSA/FSA eligible, making it easier than ever to invest in your health. A big thank you to the Saltivate team for redefining hydration. Click the link in the comments to explore Saltivate and use your HSA/FSA! #Flex #Saltivate #HSA #FSA #Hydration #Electrolytes #WellnessTech #StayHydrated #Health

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  • View organization page for Flex (YC S23), graphic

    1,330 followers

    💦 Dehydration got you down? Flex has you covered! Our latest blog explores how oral rehydration solutions and electrolytes can be HSA/FSA eligible. Whether you’re recovering from a workout or illness, you can stay hydrated and save with your HSA/FSA. Learn more about rehydration solutions, when to use them, and how to make the most of your health savings accounts. 💪 Click the link in the comments to read more! #Flex #HSA #FSA #Hydration #Electrolytes #Rehydration #Health #Wellness

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    1,330 followers

    💧 We’re excited to announce our partnership with BIOLYTE®, the IV in a bottle! BIOLYTE offers the same benefits as an IV, providing quick relief from dehydration, fatigue, cramps, and more—without needing a medical setting. 📈 With 6.5x more electrolytes than leading sports drinks, BIOLYTE’s formula mimics what you’d find in an IV bag, making it the most effective rehydration product you can take home. Originally inspired by the founder’s wife’s battle with cancer, BIOLYTE continues to help everyday warriors—from athletes to new mothers—feel better and stay hydrated. ✨ BIOLYTE is now available using HSA/FSA, making it even easier to invest in your health. A big thank you to Trey Sinclair, Jesslyn Rollins, and the BIOLYTE team for making hydration more accessible. Click the link in the comments to explore their products and use your HSA/FSA. #Flex #BIOLYTE #HSA #FSA #Hydration #WellnessTech #Rehydration #StayHydrated #Health

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  • View organization page for Flex (YC S23), graphic

    1,330 followers

    🎟️ Did you know Flex supports coupons and promo codes? On top of the 30-40% savings customers already get when using their HSA/FSA cards, businesses can offer additional discounts with Flex. ✨ This dynamic feature helps you drive engagement and boost sales by creating tailored discounts and special offers. Whether you’re attracting new customers, building loyalty, or encouraging subscription renewals, Flex gives you the flexibility to do it all. With Black Friday and Cyber Monday approaching fast, now’s the perfect time to get set up. Reach out to discover how Flex can help your brand accept HSA/FSA payments and amplify your holiday sales! #Flex #HSA #FSA #Coupons #PromoCodes #BusinessGrowth #CustomerEngagement #WellnessTech #BlackFriday #CyberMonday

  • View organization page for Flex (YC S23), graphic

    1,330 followers

    🚀 Did you miss our webinar on how to maximize the impact of offering HSA/FSA payments for Shopify stores? No worries—Sam has you covered! Check out her key takeaways below.

    View profile for Sam OKeefe, graphic

    Co-Founder & CEO

    🌟 Earlier this month, I hosted a webinar for Shopify stores on maximizing the impact of offering HSA/FSA payments. Here are my key takeaways: 1️⃣ Raising Awareness • Leverage targeted email and social media campaigns to educate customers about the availability of HSA/FSA payments. These campaigns should highlight how customers can use their pre-tax dollars on eligible products, driving both awareness and engagement. • Create dedicated landing pages with SEO-optimized content focused on HSA/FSA topics. This will help attract HSA/FSA-minded customers actively searching for ways to use their benefits, boosting organic traffic. 2️⃣ Improving Conversions • Add HSA/FSA icons to product detail pages (PDPs) to make it easy for customers to identify eligible items. This simple visual cue can streamline decision-making and encourage shoppers to complete their purchases. • Enable HSA/FSA as a payment option at checkout, ensuring a seamless transaction experience. Making it easy to pay with these accounts can help reduce cart abandonment and increase overall sales. 3️⃣ Enhancing Customer Experience • Prepare your support team to handle common questions about HSA/FSA payments, ensuring they can assist customers efficiently. Providing clear, concise answers will create a smooth experience and build customer trust. • Update FAQs to include a dedicated section on HSA/FSA usage, eligibility, and payment processes. A well-informed customer is more likely to complete a purchase and have a positive shopping experience. • Pro tip: Incorporate HSA/FSA banners, icons, or text in your regular email campaigns to remind existing customers of this benefit and further increase conversion potential! 💡 #Ecommerce #Shopify #HSA #FSA #CustomerExperience #ConversionOptimization #MarketingTips

Similar pages

Funding

Flex (YC S23) 2 total rounds

Last Round

Seed

US$ 3.2M

See more info on crunchbase