{
  "title": "Startups showing Substack as a customer",
  "logo": "Substack",
  "as_of": "2026-11-08",
  "summary": "5 of the 1,841 startups whose homepage shows customer logos include Substack's logo in a section the page labels as customers; 1 added it in the last 12 months.",
  "startups": [
    {
      "company": "Casco",
      "record": "https://startuphistory.org/c/casco.com",
      "latest_capture": "2026-11-05T12:25:22.451Z"
    },
    {
      "company": "Diffuse Bio (Diffuse)",
      "record": "https://startuphistory.org/c/ycombinator.com",
      "latest_capture": "2026-11-06T21:39:14.360Z"
    },
    {
      "company": "Mux",
      "record": "https://startuphistory.org/c/mux.com",
      "latest_capture": "2026-11-06T17:45:24.814Z"
    },
    {
      "company": "Pangram Labs, Inc.",
      "record": "https://startuphistory.org/c/pangram.com",
      "latest_capture": "2026-11-06T19:57:24.408Z"
    },
    {
      "company": "Unitary",
      "record": "https://startuphistory.org/c/unitary.ai",
      "latest_capture": "2026-11-06T21:30:25.407Z"
    }
  ],
  "recently_added": [
    {
      "company": "Casco",
      "record": "https://startuphistory.org/c/casco.com",
      "between": {
        "from": "2026-10-28T16:57:08.000Z",
        "to": "2026-11-05T12:25:22.451Z"
      }
    }
  ],
  "method": "https://startuphistory.org/logos#method",
  "license": "CC-BY-4.0",
  "cite": "StartupHistory, “Startups showing Substack as a customer”, https://startuphistory.org/logos/substack (accessed 8 November 2026)"
}