Heroicons - Beautiful, free SVG icons from the makers of Tailwind CSS.
Brandkey.io - Brandkey's Logo API, Colour API and Website Categorization API. All the website data you need for $100pm per 5000 API Requests. Highly Accurate & Simple Integration.
IconStore - Free icon packs by first-class designers
SVG Porn - A collection of SVG Logos for developers
Tabler Icons - 550+ free fully customizable SVG icons
Personalization API - Instantly pull company branding data to use in your projects