Stampli

Stampli is an accounts payable automation platform that distinguishes itself in the AP software market by centering its user experience on invoice-level collaboration rather than purely on workflow routing and payment processing. Founded in 2015 and headquartered in Mountain View, California, Stampli has raised more than $79 million from investors including Insight Partners and SignalFire. The company's core insight is that AP invoice exceptions — the cases that require human judgment, clarification, or approval escalation — are best resolved through structured communication directly on the invoice rather than through email chains and disconnected approval workflows.\n\nStampli's platform uses AI, called Billy the Bot, to automate the learning and coding of invoice data, recognizing vendors, GL codes, cost centers, and approval patterns from historical data to reduce manual data entry on routine invoices. When an invoice requires clarification, Stampli centralizes all communication, approvals, and documentation on a single invoice view accessible to finance, department approvers, and vendors, creating a complete audit trail. The platform integrates natively with more than 70 ERP systems including SAP, Oracle, NetSuite, QuickBooks, Microsoft Dynamics, and others, with an API-first architecture that reduces implementation friction.\n\nStampli targets mid-market and enterprise finance teams that process high invoice volumes and struggle with approval delays, lost invoices, and the lack of visibility in traditional AP workflows. The company competes with Tipalti, Medius, Basware, and Coupa in the AP automation space, differentiating through its ERP-agnostic integration approach, its collaboration-first UX, and its AI learning engine that reduces manual work without requiring extensive AP workflow reconfiguration.