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  "markdown": "Co-founder, WhatsApp.\n\nJan Koum co-founded WhatsApp with Brian Acton, a fellow former Yahoo employee, and incorporated WhatsApp Inc. in California in February 2009. He was its chief executive through Facebook's 2014 acquisition and announced in April 2018 that he was leaving.\n\n## What Jan builds\n\n- [WhatsApp Business Platform (Cloud API)](https://www.anchorterminal.com/tools/whatsapp-cloud-api.md), graded B, 67.2/100, in Messaging APIs. Meta's WhatsApp Business Platform Cloud API sends and receives WhatsApp messages for a business phone number through the Graph API, with inbound messages and status updates arriving by webhook. Access uses a Meta developer app and OAuth access tokens. Co-founder, WhatsApp, researched 2026-10-28.\n\n## Works with\n\n- [Alexander Davenport](https://www.anchorterminal.com/people/alexander-davenport/), Director of Product Marketing, monetization interfaces and advertiser tools\n- [Andrew McCollum](https://www.anchorterminal.com/people/andrew-mccollum/), Co-founder, Facebook (now Meta Platforms)\n- [Brian Acton](https://www.anchorterminal.com/people/brian-acton/), Co-founder, WhatsApp\n- [Chris Hughes](https://www.anchorterminal.com/people/chris-hughes/), Co-founder, Facebook (now Meta Platforms)\n- [Dustin Moskovitz](https://www.anchorterminal.com/people/dustin-moskovitz-2/), Co-founder, Facebook (now Meta Platforms)\n- [Eduardo Saverin](https://www.anchorterminal.com/people/eduardo-saverin/), Co-founder, Facebook (now Meta Platforms)\n- [Lauren Krainski](https://www.anchorterminal.com/people/lauren-krainski/), Senior Product Manager, WhatsApp Business Messaging Platform\n- [Mark Zuckerberg](https://www.anchorterminal.com/people/mark-zuckerberg/), Founder, Meta\n\n## Questions\n\n### Who is Jan Koum?\n\nJan Koum co-founded WhatsApp with Brian Acton, a fellow former Yahoo employee, and incorporated WhatsApp Inc. in California in February 2009. He was its chief executive through Facebook's 2014 acquisition and announced in April 2018 that he was leaving.\n\n### What does Meta Platforms, Inc. make?\n\nAnchor Terminal lists WhatsApp Business Platform (Cloud API) from Meta Platforms, Inc.. Meta's WhatsApp Business Platform Cloud API sends and receives WhatsApp messages for a business phone number through the Graph API, with inbound messages and status updates arriving by webhook. Access uses a Meta developer app and OAuth access tokens.\n\n### How are Jan's tools graded?\n\nWhatsApp Business Platform (Cloud API) is graded B, 67.2 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.linkedin.com/in/laurenkrainski/details/experience/\n- https://www.linkedin.com/in/laurenkrainski\n- https://business.whatsapp.com\n- https://www.whatsapp.com\n- https://developers.facebook.com/\n- https://developers.facebook.com/documentation/business-messaging/whatsapp/support/\n- https://en.wikipedia.org/wiki/Meta_Platforms\n- https://en.wikipedia.org/wiki/WhatsApp\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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