Evercontact - Your contacts always up to date and automatically with Evercontact.
Outlook Google Calendar Sync - Offers calendar synchronisation between Outlook and Google, including attendees and reminders.
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
gSyncit - gSyncit Outlook Cloud Synchronizer. Outlook Calendar, Contact, Task, Note Synchronizer supporting Google, Toodledo, Evernote, Informant, iCloud, AOL, Yahoo, Synology, Fruux, Memotoo and CalDav/CardDav services.
Justphonebook - Justphonebook provides web or mobile access to a unified corporate phone directory that can be shared to all employees.
EteSync - Secure, end-to-end encrypted and journaled personal information synchronization.