SalesOptimize - Selling to online retailers? Revolutionary sales lead generation search engine driven by deep web analytics

Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!

Rescan.io - Find the technology stack behind any website. Get the lists of websites using any technology.

Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution

Elucify - A completely free software tool that uses crowdsourced data to find business email addresses

Heartland Retail - Heartland Retail (previously Springboard Retail) POS software a robust, user-friendly cloud point of sale solution designed for the business of retail. A complete retail management platform built for growing single, multi and franchise brands.