| Nom(s) d'organisme | Situé à |
| Gallery Association of Agnes Etherington Art Centre | Kingston |
| Galop Canal Revitalization Project | Iroquois |
| Gamblers Anonymous Gamanon, G.A. Intergroup Ottawa | Ottawa |
| Gananoque Boat Line | Gananoque |
| Gananoque Sport Parachuting Centre | Gananoque |
| Gananoque. Bureaux municipaux | Gananoque |
| Gananoque. Département des incendies | Gananoque |
| Garden Terrace, Long Term Care Home | Kanata |
| Garden Villa (The), Maison de retraite | Chesterville |
| Garderie Croque Soleil (La) | Kingston |
| Garderie Croque Soleil (La), Les Explorateurs | Kingston |
| Garderie des Amis | Embrun |
| Garderie Educative de Kingston (La) | Kingston |
| Garderie Educative de Kingston (La), Service de Garde Polson Park | Kingston |
| Garderie Educative de Kingston (La), Service de garde Sir John A. MacDonald | Kingston |
| Garderie Old MacDonald | Kingston |
| Garderie Quatre Saisons | Casselman |
| Garderie Wise Owl, Barry's Bay | Barry's Bay |
| Garrison 5 Pin Bowling Lanes | Kingston |
| Garry J. Armstrong Home | Ottawa |
| Gathering Place (The) | Kingston |
| GEM Health Care Services Inc. | Ottawa |
| Gendarmerie royale du Canada, Détachement de Kingston | Kingston |
| Gender Mosaic, Transgender Support Group | Ottawa |
| Genesis Residential Treatment Program | Ville d'Ottawa |
| Geneva Centre for Autism, Training Institute | Toronto |
| Gentle Beginnings Midwifery, Cornwall, Embrun, Winchester | Cornwall |
| Gestion de la colère, Liste des programmes | Ville d'Ottawa |
| Gignul Non-Profit Housing Corporation | Ottawa |
| Gilda's Club. Sud-Est de l'Ontario | Kingston |
| Gilmer Pharmacy Ltd, Iroquois, Promenade Plaza | Iroquois |
| Glebe Apothecary, Ottawa, rue Bank | Ottawa |
| Glebe Parents' Day Care | Ottawa |
| Glen Lawrence Golf Club | Kingston |
| Glen Stor Dun Lodge, Community Outreach Services, Reassurance Checks | Cornwall |
| Glenburnie United Church | Glenburnie |
| Glengarry Celtic Music Hall of Fame | Williamstown |
| Glengarry East Pastoral Charge, Glen Sandfield United Church | Dalkeith |
| Glengarry Highland Games | Maxville |
| Glen-Stor-Dun Lodge | Cornwall |
| Glen-Stor-Dun Lodge, Programmes de soutien communautaire, Programme de jour pour adultes | Cornwall |
| Glen-Stor-Dun Lodge, Services communautaires, Service de livraison de repas à domicile (Popote roulante) | Cornwall |
| Global Health Care Services Inc. | Ottawa |
| Gloucester Allotment Garden Association | Ville d'Ottawa |
| Good Companions (The) | Ottawa |
| Good Companions (The), Community Support Services | Ottawa |
| Good Companions (The), Day Support Program | Ottawa |
| Good Companions (The), Facilities | Ottawa |
| Good Food Box Kingston, Région de Kingston | Kingston |
| Good Health Pharmacy, Gloucester, chemin Spratt | Gloucester |
| Gordon Presbyterian Church, St Elmo | Maxville |
| Gordon's Estate Services | Kingston |
| Goulbourn Non-Profit Housing Corporation | Goulbourn |
| Governor's Walk Retirement Residence | Ottawa |
| Grace Manor, Maison de soins de longue durée | Ottawa |
| Graham Harvey, MSW, Mediation, Counselling and Assessment Services | Ottawa |
| Grand Lodge of Canada | Ontario |
| Grand Theatre (The) | Kingston |
| Grandir ensemble pour enfants de jeunes parents célibataires | Ottawa |
| Grands Frères Grandes Soeurs d'Ottawa | Ottawa |
| Grands-Parents Requérant Accès Naturel et Dignité, Chapitre d'Ottawa | Ottawa |
| Greater Kingston Girls Hockey Association, Ice Wolves | Kingston |
| Greater Kingston Senior Soccer Association | Kingston |
| Greater Kingston Sweet Adelines | Kingston |
| Greater Kingston Ten-Pin Bowling Association | Kingston |
| Greater Napanee Gymnastics Club | Napanee |
| Greater Napanee. Département des incendies, Caserner de pompiers | Napanee |
| Greater Napanee. Département des incendies, Station deux | Roblin |
| Greater Napanee. Service des parcs, des loisirs et de la culture, Salle Selby | Selby |
| Greater Napanee. Services publics | Napanee |
| Green Street Pharmacy, Ottawa, rue Green | Ottawa |
| Greenbank Drugmart | Nepean |
| Greenpeace Canada (1971) | Toronto |
| Green's Haven Country Assisted Living | Sunbury Village |
| GreenSaver, saveONenergy Home Assistance Program | Toronto |
| Grenville Community Futures Development Corporation, Programme de Travail indépendant | Prescott |
| Grocery Foundation (The) | Etobicoke |
| Groupe "Nouvelle vie" | Kingston |
| Groupe Action pour l'enfant, la famille et la communauté de Prescott-Russell, Fiers de nos enfants, Auxilliaires à domicile | Hawkesbury |
| Groupe Action pour l'enfant, la famille et la communauté de Prescott-Russell, Fiers de nos enfants/Maisons de la famille | Hawkesbury |
| Groupe d'entraide des troubles de l'humeur d'Ottawa | Ottawa |
| Groupe Inter-Agence Glengarry, Services d'emploi de l'Ontario | Alexandria |
| Groupes familiaux Al-Anon (Canada) Inc. | Ottawa |
| Groupes familiaux Al-Anon / Alateen, Districts 28 & 29 | Ottawa |
| Groupes familiaux Al-Anon / Alateen, Stormont, Dundas et Glengarry, Prescott-Russell | Cornwall |
| Grove Arnprior & District Nursing Home | Arnprior |
| Groves Park Lodge, Maison de soins de longue durée | Renfrew |
| GT Seniors Apartments Non-profit Housing corp., Baskin Place | Arnprior |
| Guardian - Wallace's Drug Store Ltd, Napanee, Rue Dundas est | Napanee |
| Guardian Drugs, Clarence Creek, Rue Labonte | Clarence Creek |
| Guardian Pro Medical Pharmacy, Ottawa, Rue Bank Sud | Ottawa |
| Guid'Amies franco-canadiennes, District d'Ottawa | Ottawa |
| Guides du Canada, Conseil de l'Ontario | Toronto (Ville de) |
| Guides du Canada, Conseil de l'Ontario, Communauté 25 | Comté de Frontenac |
| Guides du Canada, Conseil de l'Ontario, Communauté 26 - Ottawa | L'Est de l'Ontario |
| Guides du Canada, Conseil de l'Ontario, Kingston et les environs | Kingston |