Shameless self promotion: I build a logo search engine that currently has almost 500K logos indexed: <a href="https://logosear.ch/" rel="nofollow">https://logosear.ch/</a><p>Also, a good source of official SVG logos is BIMI, a standard that uses DNS to point to the URL of an SVG.<p>Spec: <a href="https://bimigroup.org/" rel="nofollow">https://bimigroup.org/</a><p>I recently scraped them for the top N domains: <a href="https://bimi-explorer.svg.zone/bimi/" rel="nofollow">https://bimi-explorer.svg.zone/bimi/</a>