Who lobbies the Senate?

Since October 2025, lobbyists filed 1,700 communication reports naming a senator, reaching 125 of them. Senator Todd Lewis tops the list with 87 reports from 67 different organizations.

Bills pass through the Senate too, and lobbyists know it. Every communication with a senator about a registrable subject must be reported to the Registry of Lobbyists within 15 days of the month's end. MyMP has no senator pages; this is the Senate side of the same records behind every MP page. Method below.

#	Senator	Reports	Organizations	Via consultants	Met most often by
1	Todd Lewis	87	67	25	SaskMilk (Saskatchewan Milk Marketing Board) (4); Canadian Canola Growers Association (3); Canadian Produce Marketing Association (3)
2	Colin Deacon	69	50	26	Centre for Digital Rights (4); Secure Future Research Ltd DBA ControlAI (4); Citizens' Climate Lobby Canada (3)
3	Mary Robinson	68	53	21	Fruit & Vegetable Growers of Canada (5); The Canadian Lung Association (3); Association of Canadian Port Authorities (ACPA) (2)
4	Duncan Wilson	57	44	17	Citizens' Climate Lobby Canada (3); Association of Canadian Port Authorities (ACPA) (2); Association of Home Appliance Manufacturers (2)
5	Karen Sorensen	46	35	18	University of Calgary (4); Breakthrough T1D (2); Canadian Ski Council (2)
6	Pat Duncan	46	32	24	Fireweed Metals Corp. (8); Canadian Chiropractic Association (4); MS Canada (2)
7	Andrew Cardozo	45	40	9	Citizens' Climate Lobby Canada (2); Food Allergy Canada (2); Mennonite Central Committee Canada (2)
8	Farah Mohamed	43	31	11	Children First Canada (4); Association of Canadian Port Authorities (ACPA) (2); Canadian Medical Association (2)
9	Robert Black	42	33	10	Canadian Agri-food Automation and Intelligence Network (CAAIN) (3); Saskatchewan Association of Rural Municipalities (3); Canadian Cattle Association (2)
10	Tracy Muggli	42	31	16	University of Saskatchewan (4); Saskatchewan Association of Rural Municipalities (3); Canadian Craft Brewers Association (2)
11	Peter M. Boehm	40	36	5	Autism Alliance of Canada (2); Canadian Canola Growers Association (2); Citizens' Climate Lobby Canada (2)
12	Daryl Fridhandler	39	34	11	Citizens' Climate Lobby Canada (3); CANADIAN FINANCE & LEASING ASSOCIATION (2); Canadian Association of Petroleum Producers (2)
13	Tony Loffreda	37	31	7	Citizens' Climate Lobby Canada (3); Canadian Bankers Association (2); Canadian ETF Association (CETFA) (2)
14	Scott Tannas	37	29	21	Mikisew Cree First Nation (4); Amazon Web Services Canada, Inc. (2); Canadian Canola Growers Association (2)
15	Sandra Pupatello	36	29	10	Fertilizer Canada (4); Aluminum 3104 (2); Association of Canadian Port Authorities (ACPA) (2)
16	Mary Coyle	36	26	5	Citizens' Climate Lobby Canada (3); Dairy Farmers of Nova Scotia (3); Canadian Red Cross (2)
17	Rosa Galvez	36	26	8	Citizens' Climate Lobby Canada (3); Ecojustice Canada (3); Oxfam-Québec (3)
18	Clément Gignac	36	25	11	Citizens' Climate Lobby Canada (5); CANADIAN FINANCE & LEASING ASSOCIATION (2); Canadian ETF Association (CETFA) (2)
19	Marilou McPhedran	34	29	16	Dairy Farmers of Manitoba (4); Citizens' Climate Lobby Canada (2); Women's Legal Education & Action Fund (LEAF) (2)
20	Julie Miville-Dechêne	34	23	6	WORLD VISION CANADA (3); BC Libraries Cooperative (2); Canadian Centre for Child Protection Inc. (2)
21	Flordeliz Osler	31	23	13	Dairy Farmers of Manitoba (3); CANADIAN CANCER SOCIETY (2); Canadian Egg Marketing Agency COB Egg Farmers of Canada (2)
22	Sharon Burey	30	24	9	Mental Health Commission of Canada (3); Active Abilities Canada (2); Palix Foundation (2)
23	Kim Pate	30	22	3	Canadian Civil Liberties Association (4); Canadian Medical Association (2); International Justice Mission Canada (2)
24	Paula Simons	30	22	8	Saskatchewan Association of Rural Municipalities (3); Amazon Web Services Canada, Inc. (2); BC Libraries Cooperative (2)
25	Hassan Yussuff	29	26	4	Citizens' Climate Lobby Canada (3); International Justice Mission Canada (2); Accipiter Radar Technology Inc. (1)
26	Yuen Pau Woo	29	22	0	Citizens' Climate Lobby Canada (4); Canadians for Justice and Peace in the Middle East (2); Justice For All Canada (2)
27	Mohamed-Iqbal Ravalia	28	25	5	Canadian Organic Growers (2); MS Canada (2); The Canadian Lung Association (2)
28	Paulette Senior	27	23	10	African Nova Scotian Justice Institute (ANSJI) (2); Mentor Canada (2); Mikisew Cree First Nation (2)
29	Patti LaBoucane-Benson	27	21	14	Citizens' Climate Lobby Canada (3); Lands Advisory Board Resource Centre (2); Nisga'a Nation (2)
30	Marnie McBean	27	19	7	Children First Canada (4); Citizens' Climate Lobby Canada (3); Canadian Medical Association (2)
31	Lucie Moncion	27	16	8	Amazon Web Services Canada, Inc. (2); Oxfam-Québec (2); Réseau de développement économique et d’employabilité (2)
32	Katherine Hay	26	21	5	Canadian Medical Association (2); Imagine Canada (2); Jack.org (2)
33	Victor Boudreau	26	21	9	The Canadian Lung Association (3); University of New Brunswick (3); Syngenta Canada Inc. (2)
34	Martine Hébert	26	20	7	Rothmans, Benson & Hedges Inc. (2); The Shipping Federation of Canada (2); Aerospace Industries Association of Canada (1)
35	Pierre Dalphond	26	19	6	Citizens' Climate Lobby Canada (4); Centre for Digital Rights (3); Canadian ETF Association (CETFA) (2)
36	David M. Wells	26	17	8	Canadian Association of Petroleum Producers (4); Citizens' Climate Lobby Canada (3); Energy NL (2)
37	Iris Petten	25	17	6	Memorial University of Newfoundland (4); Chicken Farmers of Canada (3); Council of Canadian Innovators (2)
38	Allister Surette	24	11	12	Dairy Farmers of Nova Scotia (3); RDEE Canada (3); Réseau de développement économique et d’employabilité (3)
39	Jim Quinn	23	16	9	CIFFA Corp (4); Association of Canadian Port Authorities (ACPA) (2); Canadian Medical Association (2)
40	Kristopher Wells	23	16	4	HIV Legal Network (5); Canadian Men's Health Foundation (2); Pride at Work Canada (2)
41	Yonah Martin	23	15	8	BC Dairy Association (3); Citizens' Climate Lobby Canada (3); Canadian Craft Brewers Association (2)
42	Danièle Henkel	22	13	6	Breast Cancer Canada (3); Citizens' Climate Lobby Canada (3); Organon Canada Inc. (3)
43	Baltej Dhillon	21	19	4	JTI-Macdonald Corp. (2); Rothmans, Benson & Hedges Inc. (2); Amazon Web Services Canada, Inc. (1)
44	Dawn Arnold	21	19	6	National Apartment Council of Canada (2); Association of Canadian Publishers (1); CANADIAN DENTAL HYGIENISTS ASSOCIATION (1)
45	Suze Youance	21	16	6	Pearson Education Inc. (3); Oxfam-Québec (2); Amazon Web Services Canada, Inc. (1)
46	Marty Deacon	21	15	10	Canadian Women & Sport (3); Active Abilities Canada (2); Canadian Ski Council (2)
47	Tony Ince	20	11	9	African Nova Scotian Justice Institute (ANSJI) (3); Canadian Medical Association (3); Dairy Farmers of Nova Scotia (3)
48	Rosemary Moodie	19	16	1	Children's Healthcare Canada (2); UNICEF Canada (2); United for Literacy (2)
49	Mary Jane McCallum	19	11	13	Nisga'a Nation, as represented by Nisga'a Lisims Government (8); Citizens' Climate Lobby Canada (2); CANADIAN DENTAL HYGIENISTS ASSOCIATION (1)
50	René Cormier	19	11	9	RDEE Canada (2); Réseau de développement économique et d’employabilité (2); Canadian Actors' Equity Association (1)

How this is counted

Reports, not meetings. A communication report names every public office holder in the room, so one meeting with three senators is three rows here, one per senator. Each report counts once per senator, from October 2025 to the latest refresh.
Consultant and in-house reports both count, because the senator is what is being ranked. The “via consultants” column is the share filed by hired lobbying firms rather than an organization's own staff.
Names are merged. Registrants type senators' names by hand (“Peter M. Boehm”, “Peter Boehm”); spellings are merged by surname and initial, and the most-used form is shown. A senator who retired during the window still appears if they were lobbied in it.
Only the Senate. A report where the title says “Senator” but the institution is not the Senate of Canada is not counted.
Source: Office of the Commissioner of Lobbying of Canada, Registry of Lobbyists communication reports; the current Senate roster is at sencanada.ca. See data status.