Geopointe - Geopointe enables Salesforce users to gain spatial insights via maps and apply geography to business processes.
CiviCRM - A Constituent relationship management for the Civic Sector
Sales Rabbit - Sales Rabbit is the industry standard canvassing and door to door sales app.
Odoo CRM - Open Source CRM
Spotio - The App for Tracking Door-to-Door Sales
Salesforce - CRM software solutions and enterprise cloud computing from salesforce.com, the leader in CRM and platform as a service.