| General Topics and Information - Central East, Service Canada, Online Services and Forms | |
| General Topics and Information - Central East, Directory Assistance | |
| General Topics and Information - Central East, Flu Clinic Schedules, Central East Ontario | |
| Gam-Anon, Innisfil | Innisfil |
| Gamblers Anonymous, Barrie - No Physical Address | Barrie |
| Ganaraska Hiking Trail Association, Barrie Section | Orillia |
| General Topics and Information - Central East, Free and Low Cost Community Volunteer Income Tax Clinics Simcoe County, Various Locations | |
| General Topics and Information - Central East, Senior Housing in South Simcoe - Long-Term Care Homes, Retirement Homes and Senior Apartments, Various Locations | |
| General Topics and Information - Central East, Animal Cruelty Complaints | |
| General Topics and Information - Central East, Various Locations, Rest Stations for Extreme Weather Relief, Simcoe County | |
| Georgian Bay General Hospital, Midland - GBGH, Georgian Bay General Hospital, Midland | Midland |
| Georgian Bay General Hospital, Penetanguishene, Georgian Bay General Hospital, Penetanguishene | Penetanguishene |
| Georgian Bay Native Women's Association, Georgian Bay Native Women's Association - Programs, King St Midland | Penetanguishene |
| 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 - 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 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 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, Georgian College, Barrie | Barrie |
| Georgian College, Orillia Campus, Centre for Changemaking and Social Innovation | Orillia |
| Georgian Cubs Volleyball Club | Barrie |
| Georgian Downs | Innisfil |
| Georgian Good Food Box (The), South Georgian Bay | Collingwood |
| Georgian Nurse Practitioner-Led Clinic | 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, InclusHIV Care Clinic | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, New Horizons for 2S-LGBTQ+ Older Adults | Barrie |
| Gilbert Centre for Social and Support Services, Barrie Office, QT Youth Connection | Barrie |
| Gilda's Club Simcoe Muskoka | Barrie |
| Girl Guides of Canada | |
| Glowing Hearts Charity, Backpacks for Youth, No Physical Address | Barrie |
| Glowing Hearts Charity, Hillcrest Public School, Simcoe Youth Choir | Barrie |
| Glowing Hearts Charity, No Physical Address | |
| 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 - Barrie, Midland and Orillia, Instrumental Music Programs | Simcoe County |
| Go Transit Bus and Train Service | Barrie |
| Go Transit Bus and Train Service, Barrie - 833 Yonge St, Barrie South GO Station | Barrie |
| Good Comfort Homecare | Collingwood |
| Grace North Psychotherapy | Barrie |
| GrandKin of Simcoe County | Barrie |
| Grandparents Requesting Access and Dignity Society | Toronto Downtown |
| Grey and Simcoe Foresters Regimental Museum | Barrie |
| General Topics and Information - Central East, Municipal Elections | |
| General Topics and Information - Central East, Obtaining a Birth Certificate - Births Outside of Canada - Overview | |
| General Topics and Information - Central East, Obtaining a Birth Certificate - Births Outside of Ontario - Overview | |
| General Topics and Information - Central East, Obtaining a copy of a Certificate of Divorce Decree | |
| General Topics and Information - Central East, Ontario. Ministry of Health and Long-Term Care, Wait Times in Ontario | |