Side-by-side comparison of AI visibility scores, market position, and capabilities
Personalized vitamin subscription brand acquired by Bayer for $225M in 2020; continues as digital-native supplement label under Bayer Consumer Health.
Care/of is a New York-based personalized vitamin and supplement brand founded in 2016 by Craig Elbert and Akash Shah. The company popularized algorithm-driven supplement personalization, asking consumers a series of lifestyle and health questions to recommend a custom daily vitamin pack delivered by subscription. Care/of was acquired by Bayer in November 2020 at a $225 million valuation, giving Bayer a majority ownership stake in the direct-to-consumer brand.\n\nUnder Bayer's Consumer Health division, Care/of has continued to operate with its original DTC model and brand identity while leveraging Bayer's supply chain, clinical validation resources, and marketing infrastructure. The brand extended its product line to include protein powders, collagen supplements, and wellness shots, maintaining its personalization-first positioning in a crowded supplement market.\n\nCare/of targets millennial consumers who value personalized wellness plans and want evidence-cited ingredient explanations. The brand's website provides research citations for every recommended ingredient, a transparency approach that built early credibility and loyalty. As part of Bayer, Care/of benefits from credentialing by association with a global pharmaceutical brand while retaining its digital-native identity.
Global payments infrastructure founded by Patrick and John Collison (YC W10); $1.4T payments volume in 2024; $18B+ revenue; $106.7B valuation as of Sept 2025; powers everything from startups to Fortune 500 companies with developer-first API design.
Stripe is a global payments infrastructure company founded in 2010 by Irish brothers Patrick and John Collison, headquartered in San Francisco, California and Dublin, Ireland. Stripe was born from the insight that accepting payments online was unnecessarily complex for developers, and that a well-designed API could unlock an entire generation of internet businesses. The company went through Y Combinator's Winter 2010 batch and grew to become the defining payments infrastructure layer of the modern internet economy, processing payments for businesses in virtually every industry worldwide.\n\nStripe's platform provides payment processing, fraud prevention via Stripe Radar, subscription billing, revenue recognition, banking-as-a-service through Stripe Treasury, corporate card issuance, identity verification, and tax compliance tools. It serves a spectrum from early-stage startups to publicly traded enterprises including Amazon, Google, Salesforce, and Shopify. Stripe's developer-first philosophy — comprehensive documentation, SDKs in every major language, and a sandbox testing environment — created an ecosystem of millions of businesses built entirely on its infrastructure.\n\nStripe processed $1.4 trillion in total payment volume in 2024 and generates over $18 billion in annual revenue, with a valuation of $106.7 billion as of September 2025. The company has remained private longer than most comparably sized technology companies, giving it flexibility to invest in long-term product expansion. An April 2024 partnership with Apple Pay extended Stripe's reach further into mobile and in-store commerce. Stripe competes with Adyen, Braintree (PayPal), and Square, but its developer ecosystem depth and global infrastructure make it the default payments platform for a generation of technology companies.
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