FinancialForce PSA - FinancialForce.com provides cloud back-office applications for Salesforce CRM.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Projector PSA - BigTime Software Acquired Projector to Become The Leading Operating Platform for Professional Services!
VOGSY - Professional service automation tool built on Google G Suite
Office Timesheets - Professional Services Automation
Kimble PSA - Kimble PSA provides professional service organizations with real-time diagnostics of their customer engagements.