SAP SE) is a German multinational software company based in Walldorf, Baden-Württemberg. It develops enterprise software to manage business operations and customer relations. The company is the world's leading enterprise resource planning software vendor. SAP is the largest non-American software company by revenue, the world's third-largest publicly traded software company by revenue, and the second largest German company by market capitalization. Apart from ERP software the company also sells database software and technology, cloud engineered systems, and other ERP software products, such as human capital management software, customer relationship management software, enterprise performance management software, product lifecycle management software, supplier relationship management software, supply chain management software, business technology platform software and programming environment SAP AppGyver for business. Historical references include Systems, Applications, and Products in Data Processing, SAP AG and SAP SE.