eResource Scheduler vs. BigTime

eResource Scheduler (eRS) is enterprise resource management and scheduling software built for project-driven professional services firms, engineering and AEC consultancies, architecture firms, management consultancies, and accounting and audit firms of 100 to 5,000 people. Trusted by 850+ global enterprises across 29+ countries, it gives real-time visibility into resource capacity, availability, schedules, actuals, and financials, replacing spreadsheets with one connected system. Scheduling stays fast with drag-and-drop assignments, resource requests, and semi-auto scheduling.

BigTime Software: The AI-powered professional services platform enabling intelligent decisions and delivering profitable growth. Too many firms rely on disconnected quoting tools, spreadsheets, and manual handoffs between sales and delivery. This creates misaligned expectations, margin erosion, and frustrated clients. BigTime changes that. We unify the entire professional services journey—from scoping and quoting to staffing and invoicing—so you can sell with confidence, deliver with precision, and grow with profitability.