| G and L Residence for Seniors | Barrie |
| Gam-Anon, Innisfil | Innisfil |
| Gamblers Anonymous, Barrie | Barrie |
| Gamblers Anonymous, Orillia, Gamblers Anonymous, Orillia | Orillia |
| Ganaraska Hiking Trail Association, Barrie Section | Orillia |
| Ganaraska Hiking Trail Association, Oro Medonte Section | Orillia |
| Garderie Au cœur de l'amitié, Barrie | Barrie |
| Gateway Centre for Learning, Computer Training | Midland |
| Gateway Centre for Learning, Bookmark Used Books | Midland |
| Gateway Centre for Learning | Midland |
| Gateway Centre for Learning, Literacy and Basic Skills | Midland |
| Gateway Cooperative Homes | Barrie |
| General Topics and Information - Central East, Simcoe County, Elder Abuse Prevention Information | Collingwood |
| General Topics and Information - Central East, Simcoe County, Flu Clinic Schedules, Central East Ontario | Collingwood |
| General Topics and Information - Central East, Simcoe County, Instructions for I&R (Provincial) - Central East Housing Help Line for Simcoe County | Collingwood |
| General Topics and Information - Central East, Simcoe County, Senior Housing in Barrie and area - Long-Term Care Homes, Retirement Homes and Senior Apartments | Collingwood |
| General Topics and Information - Central East, Simcoe County, Senior Housing in Collingwood - Long-Term Care Homes, Retirement Homes and Senior Apartments | Collingwood |
| General Topics and Information - Central East, Simcoe County, Senior Housing in Midland, Penetanguishene & Area - Long-Term Care Homes, Retirement Homes and Senior Apartments | Collingwood |
| General Topics and Information - Central East, Simcoe County, Senior Housing in Orillia - Long-Term Care Homes, Retirement Homes and Senior Apartments | Collingwood |
| General Topics and Information - Central East, Simcoe County, Senior Housing in South Simcoe - Long-Term Care Homes, Retirement Homes and Senior Apartments | Collingwood |
| General Topics and Information - Central East, Simcoe County, Warming and Cooling Stations for Extreme Weather Relief, Simcoe County | Collingwood |
| General Topics and Information - Central East, Animal Cruelty Complaints | Ontario |
| General Topics and Information - Central East, Emergency Preparedness | Ontario |
| General Topics and Information - Central East, Santa letter program | Ontario |
| Georgian Bay Cancer Support Centre | Penetanguishene |
| Georgian Bay Cancer Support Centre, Penetanguishene, Georgian Bay Cancer Support Centre - Penetanguishene | Penetanguishene |
| Georgian Bay Clinic (The) | Midland |
| Georgian Bay Family Health Team, Diabetes Education Program | Collingwood |
| Georgian Bay Family Health Team | Collingwood |
| Georgian Bay Food Network, Aberdeen Blvd - Midland, Georgian Bay Food Network - Foodbank | Midland |
| Georgian Bay Football Officials Association | Barrie |
| Georgian Bay General Hospital, Georgian Bay General Hospital Foundation, Midland | Midland |
| Georgian Bay General Hospital, Midland | Midland |
| Georgian Bay General Hospital, Midland, Volunteer Association | Midland |
| Georgian Bay Islands National Park of Canada | Georgian Bay Township |
| Georgian Bay Land Trust | Toronto Downtown |
| Georgian Bay Native Friendship Centre | Midland |
| Georgian Bay Native Friendship Centre, Akwe:go Urban Aboriginal Children's Program | Midland |
| Georgian Bay Native Friendship Centre, Apatisiwin [Employment and Training] Program | Midland |
| Georgian Bay Native Friendship Centre, Court Worker Programs and Services | Midland |
| Georgian Bay Native Friendship Centre, Healing and Wellness Program | Midland |
| Georgian Bay Native Friendship Centre, Indigenous Alcohol and Drug Worker Program | Midland |
| Georgian Bay Native Friendship Centre, Indigenous Court Worker | Midland |
| Georgian Bay Native Friendship Centre, Indigenous Mental Health & Wellness Program | Midland |
| Georgian Bay Native Friendship Centre, Reaching Home Program | Midland |
| Georgian Bay Native Friendship Centre, Urban Aboriginal Healthy Living / Healthy Kids | Midland |
| Georgian Bay Native Friendship Centre, Wasa-Nabin Urban Aboriginal Youth Program | Midland |
| Georgian Bay Native Women's Association, Georgian Bay Native Women's Association - Programs, Midland | Penetanguishene |
| Georgian Bay Turtle Hospital | Oro-Medonte |
| Georgian Bay Volunteer Search & Rescue | Barrie |
| Georgian College, Barrie - 48 Collier St, Integrated Employment Services | Barrie |
| Georgian College, Barrie - 48 Collier St, Job Finding Club for Immigrants | Barrie |
| Georgian College, Barrie - 48 Collier St, Occupation-Specific Language Training | Barrie |
| Georgian College, Barrie Campus - Residence, Department of Housing and Residence Life | Barrie |
| Georgian College, Barrie Campus - Bldg A - Room A216, Centre for Changemaking and Social Innovation | Barrie |
| Georgian College, Barrie Campus - Bldg B - Room B110, Accessibility Services | Barrie |
| Georgian College, Barrie Campus - Bldg C - Room C279, International Centre | Barrie |
| Georgian College, Barrie Campus - Bldg C, Financial Aid and Awards | Barrie |
| Georgian College, Barrie Campus - Bldg D - Room D140, Campus Gallery | Barrie |
| Georgian College, Barrie Campus - Bldg E - Room E100, Conference and Event Services | Barrie |
| Georgian College, Barrie Campus - Bldg E - Room E100, Georgian Dining Room | Barrie |
| Georgian College, Barrie Campus - Bldg E - Room E211, Continuing Education | Barrie |
| Georgian College, Barrie Campus - Bldg E - Room E211, Corporate Training | Barrie |
| Georgian College, Barrie Campus - Bldg E - Room E211, Nonviolent Crisis Intervention Training | Barrie |
| Georgian College, Barrie Campus - Bldg E - Suite E219, Henry Bernick Centre for Entrepreneurship | Barrie |
| Georgian College, Barrie Campus - Bldg K - Library, Library and Academic Success | Barrie |
| Georgian College, Barrie Campus - Bldg M - Room M137, Indigenous Services | Barrie |
| Georgian College, Barrie Campus - Bldg M - Room M141, Oral Health Clinic | Barrie |
| Georgian College, Barrie Campus - Bldg M - Room M146, Spa and Esthetics Clinic | Barrie |
| Georgian College, Barrie Campus - Bldg M - Room M148, Student Massage Therapy Clinic | Barrie |
| Georgian College, Barrie Campus - Bldg M - Room M233, Harmonize for Speech, Hearing and Language Clinic | Barrie |
| Georgian College, Barrie Campus - E Bldg, Rm E204, Literacy and Basic Skills | Barrie |
| Georgian College, Barrie Campus - M Bldg - Room M240, Co-operative Education and Career Success | Barrie |
| Georgian College, Barrie Campus, Georgian College, Barrie | Barrie |
| Georgian College, Midland Campus, Georgian College, Midland Campus | Midland |
| Georgian College, Midland Campus, Literacy and Basic Skills Support Organization - Academic and Career Preparation, Midland Campus | Midland |
| Georgian College, Orillia Campus, Accessibility Services | Orillia |
| Georgian College, Orillia Campus, Centre for Changemaking and Social Innovation | Orillia |
| Georgian College, Orillia Campus, Georgian College, Orillia Campus | Orillia |
| Georgian College, Orillia Campus, Integrated Employment Services, Orillia Campus | Orillia |
| Georgian College, Orillia Campus, Literacy and Basic Skills, Orillia Campus | Orillia |
| Georgian College, Orillia Campus, Student Success - Mental Health and Wellness | Orillia |
| Georgian College, Orillia Campus, Wiidookdaading Indigenous Resource Centre | Orillia |
| Georgian College, Owen Sound Campus, Accessibility Services | Owen Sound |
| Georgian College, South Georgian Bay Campus, Georgian College, South Georgian Bay Campus | Collingwood |
| Georgian College, South Georgian Bay Campus, Literacy and Basic Skills, South Georgian Bay Campus | Collingwood |
| Georgian College, Wasaga Beach, Literacy and Basic Skills, Wasaga Beach | Collingwood |
| Georgian Cubs Volleyball Club | Barrie |
| Georgian Good Food Box (The), South Georgian Bay | Collingwood |
| Georgian Learning, Literacy and Basic Skills, Georgian Learning | Collingwood |
| Georgian Nurse Practitioner-Led Clinic, Barrie | Barrie |
| Georgian Radiology Consultants, Barrie - Huronia Rd | Barrie |
| Georgian Radiology Consultants, Barrie - Lakeside Terrace | Barrie |
| Georgian Radiology Consultants, Collingwood | Collingwood |
| Georgian Radiology Consultants, Innisfil | Innisfil |
| Georgian Radiology Consultants, Wasaga Beach | Wasaga Beach |
| Georgian Shores Seniors Club | Midland |
| Georgian Triangle Development Institute, Collingwood - Mailing Address | Collingwood |
| Georgian Triangle Humane Society, Collingwood - Hurontario St, Treasure Tails | Collingwood |
| Georgian Triangle Humane Society, Collingwood - Tenth Line | Collingwood |
| Georgian Triangle Humane Society, Spay / Neuter Clinic, Collingwood - Tenth Line | Collingwood |
| Georgian Triangle Lifelong Learning Institute | Collingwood |
| Georgian Tutors | Owen Sound |
| German Canadian Club. Barrie | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, GenQ | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, Teen OUTreach | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, Trans Q of Barrie | Barrie |
| Gilda's Club Simcoe Muskoka | Barrie |
| Glowing Hearts Charity, Hillcrest Public School, Simcoe Youth Choir and Move, Groove & Soar | Barrie |
| Glowing Hearts Charity, No Physical Address, Hygiene Kit Program | Barrie |
| Glowing Hearts Charity, No Physical Address, Mental Health Counselling | Barrie |
| Glowing Hearts Charity, No Physical Address, Psychoeducational Assessment & Follow-Up Supports | Barrie |
| Glowing Hearts Charity, Various Locations, Calm H.O.M.E.S | Barrie |
| Glowing Hearts Charity, Various Locations, Instrumental Music Programs | Barrie |
| Go Transit Bus and Train Service, Barrie - 24 Essa Rd, Barrie Allandale Waterfront GO Station | Barrie |
| Go Transit Bus and Train Service, Barrie - 833 Yonge St, Barrie South GO Station | Barrie |
| Going With Gibb Accompaniment Service | Orillia |
| Good Comfort Care | Collingwood |
| Good Doctors Virtual Walk-in Medical Clinic, Barrie - Mapleview Dr W | Barrie |
| Good Happenings Food Bank, South River | South River |
| Good2Talk, Good2Talk Mental Health Supports | Toronto |
| Gospel Echoes Team of Canada | Perth East |
| Grace United Church, Barrie | Barrie |
| Grace United Church, Barrie, Meeting Facilities | Barrie |
| GrandKin of Simcoe County | Barrie |
| Grandma's House Certified Private Care, Barrie, Grandma's Home Health | Barrie |
| Grandmothers and Grandothers, Barrie - Mailing Address | Barrie |
| Green Communities Canada | Peterborough |
| Green Haven Shelter for Women, Orillia - Unpublished | Orillia |
| Green Party of Canada, Barrie Innisfil - Mailing Address, Barrie-Innisfil Federal Electoral District Association | Barrie |
| Green Party of Canada, Barrie-Springwater-Oro-Medonte Federal Electoral District Association | Barrie |
| Green Party of Ontario, Barrie-Innisfil Provincial Electoral District Association | Barrie |
| Green Party of Ontario, Barrie-Springwater-Oro-Medonte Provincial Electoral District Association | Barrie |
| Green Party. Simcoe-Grey Federal and Provincial Riding | Simcoe |
| Greenestone Centre for Recovery | Muskoka Lakes Township |
| Grey and Simcoe Foresters Regimental Museum | Barrie |
| Grove Park Home, Long Term Care Home | Barrie |
| Grove Park Home, Mulberry Lane Retirement Living | Barrie |
| Grove Park Home, Senior Encounter Adult Day Program | Barrie |
| Growing Minds Academy, Growing Minds Learning Centre | Barrie |
| Growth Group [The], Barrie | Barrie |
| Guesthouse Shelter (The), The Guesthouse Shelter and Community Hub | Midland |
| Guiding Stars Child Care Centre, Barrie | Barrie |
| General Topics and Information - Central East, Lost Wallet | Ontario |
| General Topics and Information - Central East, Obtaining a Birth Certificate - Births Outside of Canada - Overview | Ontario |
| General Topics and Information - Central East, Ontario. Ministry of Health and Long-Term Care, Wait Times in Ontario | Ontario |
| General Topics and Information - Central East, Reporting Sick, Orphaned or Injured Wild Animals | Ontario |
| General Topics and Information - Central East, Winter Storms Information | Ontario |