Startups Directory

BigTime Software is a cloud-based Professional Services Automation (PSA) platform that manages the complete financial project lifecycle for professional firms—from quoting and time tracking through revenue recognition and invoicing. The platform serves 2,700+ firms tracking over $8 billion in billable time annually across accounting, architecture, engineering, consulting, creative, government contracting, IT services, and law. BigTime differentiates through strong G2 rankings (first place in PSA category in 2020-2021), deep QuickBooks integration, and recent AI-powered automation via its AVA orchestrator, though some users note constraints in retainer billing flexibility and resource planning clarity.