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  "markdown": "Co-founder, CTO Emeritus and CEO of Mattermost Federal, Inc..\n\nCorey Hulen co-founded Mattermost and leads Mattermost Federal, Inc., its US federal subsidiary, as chief executive. The company calls him CTO Emeritus. He earlier founded Tempo AI, which Salesforce acquired, and was an engineering manager and architect on Microsoft Office, with 30 patents in Microsoft technologies.\n\n- LinkedIn: https://www.linkedin.com/in/coreyhulen/\n\n## What Corey builds\n\n- [Mattermost](https://www.anchorterminal.com/tools/mattermost.md), graded B, 66/100, in Work \u0026 productivity. Mattermost is an open-core team chat server from Mattermost, Inc. that its owner hosts, with channels, threads, calls and playbooks. Agents reach it through the REST API v4, bot accounts, personal access tokens, webhooks and an MCP server. Co-founder, CTO Emeritus and CEO of Mattermost Federal, Inc., researched 2026-10-28.\n\n## Works with\n\n- [Ian Tien](https://www.anchorterminal.com/people/ian-tien/), Co-founder and CEO\n- [Jason Blais](https://www.anchorterminal.com/people/jason-blais/), VP Product and NATO Alliances\n- [Pavel Zeman](https://www.anchorterminal.com/people/pavel-zeman/), SVP Engineering and Security\n\n## Backed by\n\n- [Y Combinator](https://www.anchorterminal.com/investors/y-combinator/)\n- [Redpoint Ventures](https://www.anchorterminal.com/investors/redpoint-ventures/)\n- [S28 Capital](https://www.anchorterminal.com/investors/s28-capital/)\n- [Battery Ventures](https://www.anchorterminal.com/investors/battery-ventures/)\n\n## Questions\n\n### Who is Corey Hulen?\n\nCorey Hulen co-founded Mattermost and leads Mattermost Federal, Inc., its US federal subsidiary, as chief executive. The company calls him CTO Emeritus. He earlier founded Tempo AI, which Salesforce acquired, and was an engineering manager and architect on Microsoft Office, with 30 patents in Microsoft technologies.\n\n### What does Mattermost, Inc. make?\n\nAnchor Terminal lists Mattermost from Mattermost, Inc.. Mattermost is an open-core team chat server from Mattermost, Inc. that its owner hosts, with channels, threads, calls and playbooks. Agents reach it through the REST API v4, bot accounts, personal access tokens, webhooks and an MCP server.\n\n### Who has invested in Mattermost, Inc.?\n\nThe sources our research read name Y Combinator, Redpoint Ventures, S28 Capital and Battery Ventures.\n\n### How are Corey's tools graded?\n\nMattermost is graded B, 66 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.ycombinator.com/companies/mattermost\n- https://mattermost.com/\n- https://mattermost.com/contact-us/\n- https://mattermost.com/company/about-us/\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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