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!
BigTime - BigTime is an online time tracking and billing software for professional service firms.
HarmonyPSA - HarmonyPSA - Professional Services Automation (PSA) for IT Businesses
Kimble PSA - Kimble PSA provides professional service organizations with real-time diagnostics of their customer engagements.
Accelo - Cloud-based platform to automate professional service business using integrated technologies to run sales, projects and time billing.
Mavenlink - Resource planning, time tracking, project financials, collaborative project management, and performance analytics all wrapped up in one intuitive solution.