Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
6sense - 6sense is a B2B predictive intelligence engine for marketing and sales.
BuiltWith - Find out the technology behind websites
LeadIQ - VP of Sales. Every second in sales counts. You hired your sales team to sell, not do data entry. LeadIQ will pump up your sales team with accurate prospect data and a smooth workflow so you can fill up your pipeline faster.
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.
LeadFuze - B2B Lead Generation & Sales Prospecting Software.