CiviCRM - A Constituent relationship management for the Civic Sector
DeltaSalesApp - Field Sales Force Automation & Field Force Tracking Software
Odoo CRM - Open Source CRM
Smart Service - Smart Service's QuickBooks integration makes it the ultimate scheduling and dispatch software for HVAC, plumbing, pest control, and other service industries.
WORKetc CRM - All-in-one business management system. CRM + Social + Projects + Billing
Service Cloud Field Service - Service Cloud Field Service is a cloud-based field service solution designed to initiate customer service activities from anywhere.