Center For Inquiry (US) – CFI is the US sister-organization for Centre for Inquiry Canada. It acts to promote reason, science and secularism in the US. http://www.centerforinquiry.net/
BC Humanists – The British Columbia Humanist Association is the oldest organization of freethinkers in the Lower Mainland. For over 25 years, they have provided a community for humanists, atheists, agnostics, and other freethinkers in Vancouver and across the province.
They host regular discussions, social events, book clubs, cafes, and guest lecturers. They also put their beliefs into actions. http://bchumanist.ca/
Kamloops Centre for Rational Thought – Freethinking and atheist group that organizes the very popular Imagine No Religion Conference.
Humanist Canada–Humanist Canada works to promote the separation of religion from public policy and foster the development of reason, compassion and critical thinking for all Canadians through secular education and community support. http://humanistcanada.ca/
International Humanist and Ethical Union–http://iheu.org/
James Randi Education Foundation – The James Randi Educational Foundation is an educational charity which works to help people defend themselves from paranormal and pseudoscientific claims. http://www.randi.org/site/
Atheist Alliance International–Atheist Alliance International (AAI) is a global federation of atheist and freethought groups and individuals committed to educating its members and the public about atheism, secularism and related issues. chttp://www.atheistalliance.org/