| La Clé, 2 promenade Marsellus, unité 5 - Barrie, Alphabétisation et formation de base | Barrie |
| La Clé, 63, rue Main - Penetanguishene, Dépôt de fournitures d'urgence pour bébés | Penetanguishene |
| La Clé, 63, rue Main - Penetanguishene | Penetanguishene |
| La Clé, 63, rue Main - Penetanguishene, ON y va - Centre pour l'enfant et la famille, 63, rue Main - Penetanguishene | Penetanguishene |
| La Clé, 63, rue Main - Penetanguishene, Services de santé mentale pour les enfants et les jeunes | Penetanguishene |
| La Clé, 70 promenade Madelaine - Barrie, La Clé, Centre pour l'enfant et la famille ON y va - 70 promenade Madeleine - Barrie | Barrie |
| La Clé, Penetanguishene - rue Main, CFRH 88.1 * 106.7 | Penetanguishene |
| La Clé, Penetanguishene - rue Poyntz, Centre de formation des adultes | Penetanguishene |
| La Clé, Services d'emploi de l'Ontario, Penetanguishene - rue Poyntz | Penetanguishene |
| La course Terry Fox - Barrie | Barrie |
| Lagoon City Community Association, Lagoon City, Association communautaire de Lagoon City | Ramara |
| Lake Country Doulas | Orillia |
| Lake Simcoe Region Conservation Authority [Central East], Bradford West Gwillimbury, Scanlon Creek Nature Center - Programme d'éducation environnementale en plein air | Bradford West Gwillimbury |
| Lake Simcoe Region Conservation Authority [Central East], Bradford West Gwillimbury, Zone de conservation Scanlon Creek | Bradford West Gwillimbury |
| Lakehead University, Bureau des initiatives autochtones, Orillia - avenue University, Bureau des initiatives autochtones | Orillia |
| Lakehead University, Orillia - Heritage Place, Campus du centre-ville | Orillia |
| Lakehead University, Orillia - University Ave, Campus d'Orillia de l'Université Lakehead | Orillia |
| Lakehead University, Orillia - University Ave, Santé et bien-être des étudiants | Orillia |
| Lakehead University, Sciences humaines 101, Orillia - University Ave | Orillia |
| Lakehead University, Services d'accessibilité pour les étudiants, Orillia - University Ave | Orillia |
| Lakeside Retirement at Innisfil | Innisfil |
| Lakeview Towers Apartments, Appartements Lakeview Towers | Midland |
| Landmark Bus Lines | Barrie |
| Landmark Bus Lines, Bureau de Barrie, Landmark Bus Lines, bureau de Barrie | Barrie |
| Landmark Bus Lines, Collingwood Office, Lignes d'autobus Landmark, Collingwood Office | Collingwood |
| L'Association du barreau canadien, Pro Bono Initiative - Crisis in Ukraine | Ottawa |
| Le Centre de ressources à la famille de Borden | Adjala-Tosorontio |
| Le Goût de vivre | Lafontaine |
| Le Nouveau Parti démocratique du Canada, Association de la circonscription électorale fédérale de Barrie-Innisfil | Barrie |
| Leacock Care Centre, Centre de soins Leacock | Orillia |
| Leacock Museum National Historic Site, Lieu historique national du musée Leacock | Orillia |
| Learning Jungle, Barrie - Mapleview Campus | Barrie |
| Legal Aid Ontario, Barrie - 85, rue Bayfield - Bureau du district du Centre, Service juridique Ontario, Barrie - 85, rue Bayfield - Bureau du district du Centre | Barrie |
| Légion royale canadienne | Clearview (Comté Simcoe) |
| Légion royale canadienne, Coldwater, Filial 270 Coldwater | Severn |
| Légion royale canadienne, Creemore Branch 397 - Ladies Auxiliary, Creemore | Clearview (Comté Simcoe) |
| Légion royale canadienne, Creemore, Creemore Branch 397 | Clearview (Comté Simcoe) |
| Légion royale canadienne, Lion's Head, Lion's Head Branch 202 | Lion's Head |
| Légion royale canadienne, Midland Branch 80 - Gloucester St, Ken Snider Memorial Museum | Midland |
| Légion royale canadienne - Waubaushene 316, Ladies Auxiliary, Waubaushene Branch 316, Waubaushene Branch 316 | Tay |
| Légion royale canadienne - Waubaushene 316, Waubaushene Branch 316, Royal Canadian Legion, Waubaushene Branch 316 | Tay |
| Lenscrafters, Barrie, programme One Sight | Barrie |
| Les Services de Coordonnées pour Agressions Sexuelles de Muskoka et Parry Sound, Bureau de Bracebridge | Parry Sound |
| Liberal Party of Canada (Ontario), Simcoe-Grey Federal Liberal Riding Association | Collingwood |
| Lice Squad.com | Barrie |
| Lice Wars Removal Force | Penetanguishene |
| Ligue de cricket de Barrie | Barrie |
| Ligue de fléchettes des jeunes de Barrie | Barrie |
| Ligue de hockey-balle mineure de Barrie | Barrie |
| Ligue féminine de hockey-balle de Penetang-Midland, Penetang-Midland Ladies Ball Hockey League | Penetanguishene |
| Ligue La Leche du Canada, Orillia, La Leche League Canada | Orillia |
| Ligue masculine de balle lente de Barrie, Barrie - Aucune adresse physique | Springwater |
| Linda's Nursing Foot Care, Service mobile | Bradford West Gwillimbury |
| Line Dancing Classes, Barrie - St George's Anglican Church, Cours de danse en ligne | Barrie |
| Lions Club of Barrie, Lions Club de Barrie | Barrie |
| Lions Foundation of Canada Dog Guides, Orillia, Pet Value Walk for Dog Guides | Orillia |
| Little Start Child Care, Barrie - promenade Commerce Park, Garderie Little Start | Barrie |
| Little Start Child Care, Barrie - promenade Bryne, Garderie Little Start, Barrie - Promenade Bryne | Barrie |
| Liz Acs Home Care Services, Service mobile | Tay |
| Locomotion Day Care Centre, Main Station, Garderie Locomotion Day Care Centre, Main Station | New Tecumseth |
| Locomotion Day Care Centre, South Station, garderie Locomotion, South Station | New Tecumseth |
| LOFT Community Services, Bradford House, Services de soutien | Bradford West Gwillimbury |
| LOFT Community Services, Services de logement, Bradford House | Bradford West Gwillimbury |
| Loge maçonnique Bayport No. 249 A.F. et A.M., Bayport Masonic Lodge No. 249 A.F.and A.M. | Victoria Harbour |
| Longford Community Centre, Centre communautaire Longford | Ramara |
| Lullaboo Nursery and Childcare Center, Campus Bradford | Bradford West Gwillimbury |
| Lupus Ontario [Central East] | |
| Lupus Ontario [Central East], No Physical Address, Groupe de soutien Lupus de Barrie et ses environs | |
| Lutheran Church of the Good Shepherd, Barrie - 222 rue Steel, Martin Luther Court | Barrie |
| Lutheran Church of the Good Shepherd, Barrie - promenade Mapleview Ouest, Église luthérienne du Bon Berger | Barrie |
| Lyndsey Stevenato Children's Therapy Services | Barrie |
| Lyrica Choir, Choral Lyrica | Barrie |