BigTime Software, Inc. is a United States-based cloud-based time and billing software company. The Company's browser-based interface for practice management allows professional services firms to instantly deploy and connect BigTime to existing back-office services. The Company's products include Lacerte, Mobile App, QuickBooks Timesheet, BigTime Express and Customer Raves. The Company develops practice management tools that help professional services firms track, manage and invoice their time. Its solutions are designed to speak the language of more than a dozen business types, from accounting and information technology (IT) services to architecture and engineering. It provides its products to a range of industries, such as accounting, technology, architecture and engineering, government contracting, legal and marketing.