I am a member of the following collaborations

The Aquila Consortium, an international collaboration of researchers interested in developing and applying cutting-edge statistical inference techniques to study the content and properties of our Universe.

The Rubin Observatory Legacy Survey of Space and Time Dark Energy Science Collaboration, the international science collaboration that will make high accuracy measurements of fundamental cosmological parameters using data from the LSST.

The Zwicky Transient Facility, a public-private partnership aimed at a systematic study of the optical night sky.

The Rubin Observatory Legacy Survey of Space and Time Informatics and Statistics Science Collaboration, devoted to developing tools for use with large astronomical surveys.

and organisations

The Royal Astronomical Society, which encourages and promotes the study of astronomy, solar-system science, geophysics and closely related branches of science.