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  "markdown": "Co-founder and former CEO, Clearbit.\n\nAlex MacCaw founded Clearbit in 2014 and led it as chief executive until November 2020, when he moved to chairman of the board.\n\n## What Alex builds\n\n- [Clearbit](https://www.anchorterminal.com/tools/clearbit.md), graded F, 14.2/100, in Lead \u0026 company data. Clearbit is a B2B data provider for company, contact and IP intelligence, acquired by HubSpot. It still runs enrichment, reveal and prospecting APIs for existing customers, and HubSpot's Breeze Intelligence carries its data for new buyers. Co-founder and former CEO, Clearbit, researched 2026-10-28.\n\n## Works with\n\n- [Matt Sornson](https://www.anchorterminal.com/people/matt-sornson/), Co-founder, Clearbit\n- [Rebecca Yang](https://www.anchorterminal.com/people/rebecca-yang/), Director of Engineering, HubSpot; former Clearbit engineering leader\n\n## Questions\n\n### Who is Alex MacCaw?\n\nAlex MacCaw founded Clearbit in 2014 and led it as chief executive until November 2020, when he moved to chairman of the board.\n\n### What does Clearbit (HubSpot) make?\n\nAnchor Terminal lists Clearbit from Clearbit (HubSpot). Clearbit is a B2B data provider for company, contact and IP intelligence, acquired by HubSpot. It still runs enrichment, reveal and prospecting APIs for existing customers, and HubSpot's Breeze Intelligence carries its data for new buyers.\n\n### How are Alex's tools graded?\n\nClearbit is graded F, 14.2 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.gosearch.ai/blog/ai-innovators-rebecca-yang-on-building-ai-platforms-agents/\n- https://www.linkedin.com/posts/rebeccaryang_a-year-ago-our-startup-clearbit-was-acquired-activity-7243302239526608896-Qf0n\n- https://www.linkedin.com/in/rebeccaryang\n- https://help.clearbit.com/hc/en-us\n- https://clearbit.com/\n- https://help.clearbit.com/hc/en-us/requests/new\n- https://clearbit.com/blog/author/alex/page/2\n- https://clearbit.com/blog/author/matt-sornson\n- https://clearbit.com/blog/tag/company/page/3\n- https://clearbit.com/blog/clearbit-enters-agreement-to-join-hubspot\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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