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  "markdown": "Co-founder and President, Stripe.\n\nJohn Collison co-founded Stripe with his brother Patrick in 2010 and is its president. Before Stripe the brothers built Auctomatic, a Y Combinator-funded company making tools for eBay sellers, which was acquired in 2008.\n\n## What John builds\n\n- [TaxJar](https://www.anchorterminal.com/tools/taxjar.md), graded C, 57.7/100, in Tax calculation \u0026 compliance. TaxJar is Stripe's US sales tax service for businesses that sell across states. Its REST API calculates tax for an order, looks up rates by address, records orders and refunds for reporting, and stores exempt customers. Co-founder and President, Stripe, researched 2026-10-28.\n\n## Works with\n\n- [Mark Faggiano](https://www.anchorterminal.com/people/mark-faggiano/), CEO of TaxJar at its 2021 acquisition by Stripe\n- [Patrick Collison](https://www.anchorterminal.com/people/patrick-collison-3/), Co-founder and CEO, Stripe\n\n## Questions\n\n### Who is John Collison?\n\nJohn Collison co-founded Stripe with his brother Patrick in 2010 and is its president. Before Stripe the brothers built Auctomatic, a Y Combinator-funded company making tools for eBay sellers, which was acquired in 2008.\n\n### What does TaxJar (Stripe) make?\n\nAnchor Terminal lists TaxJar from TaxJar (Stripe). TaxJar is Stripe's US sales tax service for businesses that sell across states. Its REST API calculates tax for an order, looks up rates by address, records orders and refunds for reporting, and stores exempt customers.\n\n### How are John's tools graded?\n\nTaxJar is graded C, 57.7 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.taxjar.com/about\n- https://stripe.com/gb/newsroom/news/taxjar\n- https://en.wikipedia.org/wiki/Stripe,_Inc.\n\nNot the same person as [John Collison](https://www.anchorterminal.com/people/john-collison/) (OpenAI and Stripe, Stripe, LLC, Stripe), [John Collison](https://www.anchorterminal.com/people/john-collison-2/) (Tempo and Stripe), as far as the research can tell.\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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