| 2026-06-30 | Canadian Propane Association | Energy; Environment; Agriculture; Taxation and Finance; Transportation |
| 2026-06-10 | WORLD VISION CANADA | Health; Budget; International Development |
| 2026-05-28 | Canadian Corps of Commissionaires | Employment and Training |
| 2026-05-28 | The Toronto-Dominion Bank | Financial Institutions; Justice and Law Enforcement |
| 2026-05-28 | Canadian Bankers Association | Financial Institutions; Consumer Issues |
| 2026-05-28 | BMO Financial Group | Financial Institutions; Justice and Law Enforcement |
| 2026-05-20 | Canadian Chamber of Commerce | Privacy and Access to Information |
| 2026-05-20 | Canadian Centre for Child Protection Inc. | Health; Industry; Justice and Law Enforcement; Science and Technology; Privacy and Access to Information |
| 2026-05-14 | Canada Fetal Alcohol Spectrum Disorder Research Network | Health; Aboriginal Affairs; Justice and Law Enforcement; Taxation and Finance; Budget |
| 2026-05-05 | Mothers Against Drunk Driving (MADD Canada) | Justice and Law Enforcement; Transportation |
| 2026-04-29 | Canadian Federation of Humane Societies (also known as Humane Canada) | Animal Welfare |
| 2026-04-22 | WORLD VISION CANADA | Health; Budget; International Development |
| 2026-04-17 | The Canadian Vaping Association | Employment and Training; Environment; Health; Industry; Regional Development |
| 2026-04-16 | Canadian Franchise Association (CFA) | Employment and Training; Immigration; Small Business; Taxation and Finance; Pensions |
| 2026-04-09 | Apple Canada Inc. | Health; Intellectual Property; Science and Technology; Taxation and Finance; Privacy and Access to Information |
| 2026-04-09 | Ontario Child Sexual Exploitation Investigators Association (OCSEIA) | Justice and Law Enforcement; Child Services |
| 2026-03-24 | Unifor | Employment and Training; Industry; International Trade; Labour; Economic Development |
| 2026-03-24 | WORLD VISION CANADA | Health; International Development |
| 2026-03-23 | Google Canada Corporation | Telecommunications; Justice and Law Enforcement; Science and Technology |
| 2026-03-17 | Canadian Centre for Child Protection Inc. | Employment and Training; Health; Industry; Intellectual Property; International Relations |
| 2026-03-13 | NATIONAL ASSOCIATION OF WOMEN AND THE LAW | Justice and Law Enforcement |
| 2026-03-12 | Canadian Federation of Independent Business (CFIB) | Internal Trade; Small Business |
| 2026-03-10 | Public Legal Education Association of Canada | Immigration; Justice and Law Enforcement; Budget; Education |
| 2026-02-26 | Canadian Federation of Humane Societies (also known as Humane Canada) | Animal Welfare |
| 2026-02-25 | Canadian Vehicle Manufacturers' Association | Environment; Industry; Internal Trade; International Trade; Transportation |
| 2026-02-24 | Canadian Union of Public Employees (CUPE) | Health; Infrastructure; Internal Trade; Labour; Taxation and Finance |
| 2026-02-10 | Toronto Metropolitan University | Justice and Law Enforcement |
| 2026-02-10 | Elder Abuse Prevention Ontario (EAPO) | Justice and Law Enforcement |
| 2026-02-03 | Dairy Farmers of Ontario | International Trade; Agriculture |
| 2026-02-03 | Dairy Farmers of Ontario (DFO) | International Trade; Agriculture |
| 2025-12-10 | The Centre for Israel and Jewish Affairs | Justice and Law Enforcement; National Security/Security |
| 2025-12-08 | Heart and Stroke Foundation of Canada | Health; Taxation and Finance; Federal-Provincial Relations |
| 2025-12-02 | Chicken Farmers of Ontario | Agriculture |
| 2025-12-02 | Chicken Farmers of Canada | International Trade; Agriculture; Taxation and Finance |
| 2025-11-24 | Canadian Urban Transit Association | Justice and Law Enforcement |
| 2025-11-24 | Rogers Communications Inc. | Justice and Law Enforcement |
| 2025-11-20 | Rothmans, Benson & Hedges Inc. | Taxation and Finance |
| 2025-11-18 | Canadian Construction Association | Employment and Training; Energy; Environment; Government Procurement; Immigration |
| 2025-11-17 | EVANGELICAL FELLOWSHIP OF CANADA | Justice and Law Enforcement; Religion; Constitutional Issues |
| 2025-11-13 | Canada's National Firearms Association | Justice and Law Enforcement |
| 2025-11-10 | Center for Trauma Informed Practices | Health; Justice and Law Enforcement; Child Services; Education |
| 2025-10-28 | Apple Canada Inc. | Health; Intellectual Property; Science and Technology; Taxation and Finance; Privacy and Access to Information |
| 2025-10-21 | The College of Family Physicians of Canada | Health; Taxation and Finance |
| 2025-10-21 | Eastern Ontario Wardens' Caucus | Telecommunications; Government Procurement; Health; Infrastructure; Internal Trade |
| 2025-10-20 | Nishnawbe Aski Nation | Environment; Aboriginal Affairs; Infrastructure; Justice and Law Enforcement; Budget |
| 2025-10-20 | Canadian Civil Liberties Association | Justice and Law Enforcement |