Tax Policy Groups
- Association de planification fiscale et financière
- Canadian Property Tax Association
- Canadian Tax Foundation
- Canadian Taxpayers Federation
- International Fiscal Association Canada
Social and Economic Policy Groups
- C.D. Howe Institute
- Canadian Centre for Policy Alternatives
- Canadian Feminist Alliance for International Action (FAFIA)
- Canadian Policy Research Network (CPRN)
- Caledon Institute of Social Policy
- Conference Board of Canada
- Fraser Institute
- National Association of Women and the Law (NAWL)
US Tax Policy Groups
- ABA Section of Taxation Task Force on Patenting of Tax Strategies
- Americans for Fair Tax
- American Tax Policy Institute
- Citizens for Tax Justice
- Tax Foundation
- Tax History Project
- Tax Policy Center
International Policy Groups
- International Fiscal Association
- Luxembourg Income Study
- Nordic Tax Justice Network
- Women's Budget Group (WBG)
- Women in Development Europe
- Taxation and Development
- World Economic Forum
- World Social Forum