BuiltWith - Find out the technology behind websites
GrowMax BI - Best retail intelligence solutions helping FMCG / CPG businesses to increase effectiveness of commercial operations and sales excellence.
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Bizom - Sales force automation for retail
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.
Fieldassist.in - Accelerating Growth