1)   Web TimeSheet 5.2.1
Web-based tool for timesheet automation, billing automation, expense management, employee attendance automation, project management and task management. Free downloadable and hosted (ASP) version.
timesheet, timesheets, web timesheet, online web timesheet, timesheet application, time management, time and billing, time billing, time and expense, time tracking tool,

 2)   TimeCore Pro 2.4.0
TimeCore is a versatile time tracking tool specializing in the capture and management of time-based data.
time sheet, time recording, time tracking, time tracking excel, time billing, time keeping, log time, invoice, time management, timesheet software,

 3)   Commit CRM 3.6
Commit CRM - Complete Software Solution for IT/Computer Services Companies. Commit is an affordable CRM, Service, Dispatching, Contracts and Billing software solution designed specifically for computer services providers
computer services, IT services, tech support software, CRM software, time billing, service software, support software, helpdesk, ticketing system, small business CRM,

 4)   A to Z Project Billing 1.4.2
A to Z Project Billing tracks your time and expenses by Project and is used to invoice your clients. Many views are available to manage your business.
Billing, Project Billing, Time Billing, Time Keeping, Invoicing, A/R, Account Receivable,