The core activity of Marquistech is to provide services in the field of software and device testing, particularly for the telecommunications and electronics industries. This includes, among other things: conformity tests for devices and systems, field tests and drive test automation, certifications (GCF, GMS), testing and inspection services for various devices and applications (e.g. mobile phones, smartwatches, IoT devices, automotive systems), and consulting and support in the development and testing of products and systems. The company offers its services globally and has branches in various countries, including Germany, the United Kingdom, Italy, Ireland, and India.