Vertex, Inc. was founded in 1978 by Ray Westphal and is headquartered in King of Prussia, Pennsylvania. Listed on Nasdaq (VERX), the company has spent more than four decades building a database of over 300 million tax rules and serves more than 10,000 businesses ranging from mid-market to Fortune 500. Its core platform automates indirect tax obligations — including sales and use tax, VAT, and excise tax — across the full transaction lifecycle.
The platform's key modules include Vertex O Series for real-time tax determination at point of sale and purchase, a Returns & Reporting module that translates calculations into jurisdiction-ready filings, and Audit & Planning tools that help tax departments respond to assessments and model future exposure. Vertex also provides e-invoicing capabilities for markets with mandatory continuous transaction controls.
Vertex is used primarily by corporate tax departments, controllers, and ERP administrators at companies with high transaction volumes or multi-jurisdiction footprints. It integrates with SAP, Oracle, Salesforce, and other major ERP and billing platforms, allowing tax logic to operate within existing finance workflows without manual intervention.
Unlike point solutions focused on a single jurisdiction or tax type, Vertex competes on the breadth of its content database and the depth of its ERP integrations. Its combination of calculation accuracy, global jurisdiction coverage, and compliance reporting in one platform positions it as an enterprise-grade alternative to building internal tax logic or relying on ERP-native tax engines.
Hands-on review pending.
