The following members or registrants have been found to be in breach of Swim Ontario polices and procedures or the Swim Ontario Comprehensive Code of Conduct.
- Mischa Sommerville – was to found to be in breach of Section 7 (d), Section 7 (j), Section 12 (h), Section 12 (o), and Section 12 (r) of the Swim Ontario Comprehensive Code of Conduct and Ethics (2015-2023). Mischa Sommerville was suspended from all Swim Ontario related activities for the period June 28, 2019 to August 31, 2021. Mr. Sommerville was subsequently found to be permanently ineligible to apply for membership with the Canadian Swim Coaches Association which prohibits him from coaching with Swim Ontario.
- Matthew Bell - Impact of Sanctions applied - On November 7, 2017, Swimming Canada suspended Mr. Matthew Bell for life from participating in any Swimming Canada activities.
- Tristan Li - was found to be in breach of Sections 7(c)(v), 7(c)(vi), 7(f), 12(k), 12(o), 12(r), and 12(u) of the Swim Ontario Comprehensive Code of Conduct and Ethics (2015-2023). Tristan Li is suspended for life from all Swim Ontario related activities.