Steward Database - Steward is a personal database for organizing everything. It's easy to use.
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.
Philasmicos Contacts 2 - Philasmicos Contacts is a professional business relationships management system for macOS X.
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.
iDatabase for Mac - The intuitive personal database manager.
Clearbit - Clearbit provides Business Intelligence APIs