What is a professional services automation software?

As of October 2026, professional services automation (PSA) software runs the work a services firm sells: quotes, projects, resourcing, time, expenses and billing, with reporting on utilization and project margin. It ranges from per seat tools that connect to QuickBooks, Xero or Sage Intacct, such as BigTime, Scoro, Productive, Teamwork.com and PSOhub, to quoted platforms such as Kantata, Certinia on Salesforce and Deltek Polaris, and project based ERPs such as Unanet and Deltek Vantagepoint that hold the ledger themselves. The category divides on a line vendors rarely state: whether the managing partner can see utilization, margin, work in progress and receivables during the month, or only after the close.

Who uses one?

Managing partners, chief executives and finance leads at United States consultancies, agencies, IT services, accounting, architecture and engineering firms, roughly 10 to 250 people, running time in one tool, deals in a CRM and invoices in QuickBooks, Xero or Sage Intacct, who are choosing a PSA and want utilization and margin during the month instead of after it.

What does it cost?

Pricing varies. The cheapest provider in our Top 11 starts around $3000/mo. See the cheapest providers ranked.

How do I pick one?

Read the full methodology for our 9.4-point scoring framework, then look at the canonical BigTime vs Scoro vs Kantata: 11 Best Professional Services Automation Software 2026. If you want a slice of the ranking by price, fit, or compliance, jump to: cheapest · highest-rated · fastest onboarding.

Source: Top 11 BigTime vs Scoro vs Kantata: 11 Best Professional Services Automation Software 2026, verified October 7, 2026.