Top 10 Contact Managers

Highrise CRM allows to save and organize notes and email conversations for up to 30,000 customers and contacts, keep track of proposals and deals, share status with your company, department, or team.
From sales, to purchasing, to business development, to legal and beyond – in every corner of the organization there’s always a team that works closely with shared contacts and needs to keep track of all interactions, deadlines and to-dos. We built ContactManager for those people.
Seamless contact management. Aggregate, sync, collaborate. Contactzilla works with your existing workflow and devices. Designed for teams and businesses. It just works.
Truecaller is the world's largest verified mobile phone community dedicated to helping you take the right call through Caller ID and number search.
FullContact pulls in all your contacts, automatically updates them with social profile information and photos, then syncs them back to the places you need them - so you always have a complete view of your connections.
If you have one or more phones iPhone, Android, BlackBerry, Windows Phone, old Nokia, Sony Ericsson, ... you could transfer your data to Memotoo and keep up to date: when you change a contact, it will be updated on all phones
fruux works with all of your devices! On all of your devices! With fruux you always have access to your contacts, calendars and tasks. Wherever you Wherever ...
Google Contacts is your online address book, integrated with Gmail, Calendar, Drive, and other Google products. Sync your contacts to all your devices and Google apps
Contactive collects information from your social media networks, publicly available sources, and contactive's global directory to show who's calling before you even answer the call. Identify 600 Million+ callers before you pick up. Contactive automates the process of Googling phone numbers and names on public directories and social networks.