The Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) is a non-profit research institution based in Castelldefels (Barcelona), resulting from a public initiative of the Regional Government of Catalonia (Generalitat de Catalunya). Research activities, both fundamental and applied are organized onto four research divisions: Communication Networks, Communication Systems, Communication Technologies and Geomatics.

Since its creation in 2001, CTTC has participated in more than 300 projects funded by European, Spanish or Catalan administrations or by direct contracts with industry, in the fields of, among others, 4/5G broadband communication systems, embedded systems, next-generation all-optical transport networks, software defined networking, satellite communications, positioning systems, M2M communications, smart grids. CTTC also develops strategic internal research projects and experimental prototypes.

In terms of scientific production, the CTTC annually produces over 80 and 180 papers in peer-reviewed journals and international conferences, respectively. Currently more than 100 people work at CTTC. In addition, CTTC hosts a pre-doctoral research program that since its creation has provided scientific guidance to more than 60 students, and produced more than 50 PhD thesis, many of them awarded with prizes from academic institutions or technical societies. CTTC also manages an IPR portfolio of  74 granted patents, belonging to 25 families, awarded in different countries in EU, USA, Japan, Hong Kong, and China.

A portfolio of Products & Solutions (P&S) in the fields of: Communication networks, technologies, systems, position, navigation, and remote sensing, in different technology readiness levels (TRL), is offered to the industry and investors for further development.