theSVG is an open-source brand-logo library maintained by GDSKS (Glincker), now past 6,500 company and product logos as clean SVGs, similar in purpose to Svgl but larger.
A large, actively-growing single source for brand marks (it started around 3,800 logos and has grown fast) means fewer trips to individual company press kits to find a usable SVG logo.
Useful when you specifically need third-party brand or product logos, not a fit if what's needed is a generic UI icon set.
The codebase (site, npm packages, CLI, API, MCP server) is MIT licensed and free, though the individual brand logos themselves remain trademarks of their respective companies.