Stampli AI Procure-to-Pay & AP Automation

Stampli is a procure-to-pay software company headquartered in Mountain View, California. It targets the slow, email-driven invoice approval process in which accounts payable teams chase approvers and re-key data into the ERP, and the lack of spend control before purchases are committed.

The platform covers procurement, accounts payable, vendor management, payments through Direct Pay, and expense management with reimbursements and Stampli Cards. Its AI assistant Billy codes, matches and routes invoices across more than 2,700 ERP-aligned fields, while approvers collaborate directly on the invoice. Stampli Deep Finance, launched in March 2026, turns AP data into executive spend analyses. The site reports 2,000+ customers, 400k+ invoices processed every week and USD 400B+ in cumulative spend, with 14 ERP integrations including NetSuite, Sage Intacct, Microsoft Dynamics 365 and SAP S/4HANA.

• Billy the AI assistant: Codes, matches and routes invoices using ERP-aligned fields.
• Invoice-centric approvals: Approvers comment and act directly on each invoice.
• Procurement: Controls spend before purchases are committed.
• Vendor management: Self-service onboarding with finance verification of sensitive changes.
• Payments and expenses: Direct Pay, reimbursements and Stampli Cards in one workflow.
• Deep Finance: AI analysis of AP data into executive-ready spend insights.

Restaurant and retail chains in Vietnam can route supplier invoices from many outlets to the right approvers and sync coded entries to NetSuite or Dynamics. Construction firms can control purchase requests before commitment, and CFOs can use Deep Finance to review vendor concentration and payment timing.

Stampli states that Billy handles 89% of the actual AP work by its own measurement. Customer Wenspok Companies cut invoice processing from 28 days to 7, and Advance Financial runs AP across 71 locations on the platform. Approvers work on the invoice itself instead of email threads, and Deep Finance surfaces cost creep, vendor concentration and working-capital opportunities from existing data.

Finance teams are extending AP automation upstream into procurement and downstream into payments and spend analytics, with AI assistants doing most of the coding and matching. Multi-site businesses in Southeast Asia, including Vietnamese retail, F&B and construction groups, face similar approval bottlenecks as they grow and adopt cloud ERPs.

Stampli is headquartered at 800 California Street, Mountain View, California. Its company page lists Series A, B and C rounds and investors including Insight Partners, SignalFire, Bloomberg Beta and NextWorld Capital. It displays AICPA SOC and GDPR badges and 2026 G2 Grid listings for P2P and AP automation.