Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
VisitorTrack - Cloud Based Affordable Biometric Visitor Management System To Eliminate Maintenance & Expense of ID Cards & Printers, Replace Paper Logs & Sign-In Sheets.
Free Address Book - In our contact management software you can store fast and easily name, phone numbers, birthdays, address, company name, city, mobile numbers, insurance and loan info, e-mail addresses.
Melissa Listware - Melissa’s Listware is the all-in-one data quality tool designed to stop bad data in its tracks. It’s affordable and easy to use with pay-as-you-go pricing that includes up to 1000 free credits every month.
Clearbit - Clearbit provides Business Intelligence APIs
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).