The OTRS Group is the vendor and world's leading provider of the open source help desk software, OTRS Help Desk, and the open source IT Service Management (ITSM) software, OTRS ITSM. The corporation consists of OTRS AG and its five subsidiaries: OTRS Inc. (USA), OTRS S.A. de C.V. (Mexico), OTRS B.V. (Netherlands), OTRS Sdn. Bhd. (Malaysia), and OTRS Ltd. (Hong Kong). As of 2009, OTRS AG is listed in the Entry Standard of the Frankfurt Stock Exchange.

The OTRS product suite includes the OTRS Help Desk software and the ITIL® V3 compliant IT service management (ITSM) solution OTRS ITSM, as well as an associated iPhone App. OTRS is available in 32 languages and over 110,000 organizations worldwide use OTRS to consolidate their service operations into a single unified solution, saving costs and resources. OTRS Group is the source code owner and offers businesses of all sizes service support, consulting, and software development. The service portfolio consists of process design, implementations, customizations, Application Support, and Managed OTRS Services. Key customers include industry leaders such as NASA, IBM, Siemens, and Nokia. OTRS is used by 60 percent of DAX 30 companies.