Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
SAS Data Quality - SAS Data Quality gives you a single interface to manage the entire data quality life cycle: profiling, standardizing, matching and monitoring.
BuiltWith - Find out the technology behind websites
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.
Oceanos - Oceanos is a contact data management solution.