This page collects the various networks and communities, in the largest possible sense, of mathematicians and non-mathematicians whose research is category theory-oriented.
It is by no means a comprehensive list, in strict alphabetic order.
CoACT – the Centre of Australian Category Theory at Macquarie University.
ItaCa – a network of Italian category theorists. The network organises both a permanent on-line seminar, and a annual in-person meeting. Besides these scientific activities, they are also committed to the popularization of CT on italian soil. In 2021 they hosted on YouTube a full introductory course in italian.
Math-Phys-Cat (home page) – Mathematical-Physics and Categorification Group, a Brazilian research group on mathematical physics with emphasis on higher category theory and physics.
TallCats – the Compositional Systems and Methods group at TalTech University, Tallinn, Estonia.
Topos Institute (home page) – an “independent scientific institute devoted to fundamental inquiry that shapes the technologies of tomorrow”.
YaMCATS – the Yorkshire and Midlands Category Theory Seminar, is a category theory research network between the universities of Birmingham, Leeds, Leicester and Sheffield. The network is partially funded by the London Mathematical Society.
Currently the network operates between Manchester, Sheffield and Leeds.
(Old link, now dead: www2.le.ac.uk/departments/mathematics/extranet/staff-material/staff-profiles/simona-paoli/yorkshire-and-midlands-category-theory-seminar-yamcats)
Feel free to continue the list!
Last revised on May 22, 2026 at 17:16:05. See the history of this page for a list of all contributions to it.