CQT is a co-host of the Majulab, an international lab established by the French National Centre for Scientific Research (CNRS), the Université Côte d’Azur and the Sorbonne University, in France, together with the National University of Singapore and Nanyang Technological University. Building on collaborations between CQT and CNRS dating back to 2008, the lab was created in 2014 and renewed in 2018. The Majulab is led by Director Alexia Auffèves, a Visiting Research Professor at CQT, and counts many of the Centre's Principal Investigators among its staff. Learn more at the Majulab website at majulab.cnrs.fr

CQT has a Partner Organisation Agreement with the ARC Centre of Excellence for Quantum Computation and Communication Technology (CQC2T) at the University of New South Wales, Australia

CQT has a Memorandum of Understanding with each of TCG Centres for Research and Education in Science and Technology, India; University of Catania, Italy; Graduate School of Information Science and Graduate, School of Mathematics, Nagoya University, Japan; University of Otago, New Zealand; and the National Institute of Metrology, Thailand