CloudSight - Image recognition API; send an HTTP request with an image, get a description of contents.
Logo Foundry - Logo Foundry is a professional Logo Design Suite App for Android and iOS that let's you create professional branding for your business in Minutes.
Flico - Add visual search to your Chrome browser
Looka - Make a logo you’ll love with Looka Logo Maker.
Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.
Canva Logo Maker - Create your own custom logos without having to hire a designer with Canva's impressively easy to use logo maker. Completely free, completely online.