In 1999, Dr. Chaim Roifman, a global expert on Primary Immunodeficiency; Mr. Jay Lefton; and Mr. John Perl established the Canadian Immunodeficiency Society (CI Society) to provide patient support, education, and research into a cure for Primary Immunodeficiency.

In 2006, Richard Thompson joined as Chief Executive Officer, additional Board members were recruited, programs were expanded, and today the CI Society is a leading national organization working with health science centres and hospitals across Canada.

In 2012, the CI Society undertook a branding exercise with donors, patients, volunteers, and healthcare professionals to better reflect the goals, expanded programs, and services of the organization. The outcome was the new branding image: Immunodeficiency Canada. However, the organization maintains the legal name of Canadian Immunodeficiency Society.

The organization continues to uphold Imagine Canada’s Ethical Fundraising and Financial Accountability Code. Immunodeficiency Canada (Canadian Immunodeficiency Society) is a registered charity: # 87276 0897 RR0001.