The Digital Research Alliance of Canada (formerly Compute Canada) manages national HPC clusters running customized Slurm workload manager configurations and contributes open-source tooling for scientific computing. Their open-source stack powers university research across the country.

Canadian research networks including CANARIE and provincial NREN members such as ORION and BCNET are major contributors to open-source network authentication and AAI infrastructure. Their contributions to FreeRADIUS and eduroam infrastructure enable secure network access for millions of students and researchers.

CANARIE manages the Canadian Access Federation (CAF), which provides open-source Shibboleth identity federation infrastructure enabling single sign-on for over 300 Canadian universities, colleges, and research institutions. Their open tools and configuration guides are publicly available.

OpenMRS is an open-source medical record system used in developing countries. The University of Toronto and affiliated Canadian researchers are among the primary contributors to its core platform and modules, helping deliver healthcare technology globally.

The National Research Council of Canada (NRC) publishes numerous open-source tools and datasets for materials science, climate modelling, construction standards, and aerospace research. Their open-data and open-software initiatives are publicly available via the Government of Canada's open resource portal.

Statistics Canada releases open-source tools and R/Python packages for statistical analysis and data dissemination. Their tools include the Canadian Statistical Dissemination Architecture (CSDA), open microdata tools, and visualization packages used by researchers across Canada.

Axiom is a free, open-source computer algebra system with a long history. Canadian mathematicians supported through NSERC (Natural Sciences and Engineering Research Council) have contributed significantly to its formal mathematics libraries and documentation.

Developed by the National Research Council of Canada, the NRC Word-Emotion Association Lexicon (EmoLex) is a widely-cited open linguistic resource mapping words to emotions and sentiments. It is freely available for research and has been used in thousands of NLP studies worldwide.