| La Leche League, Online Service, Find a La Leche League Group | Ontario |
| La Villa Montessori School, Licensed Child Care Centre | Oakville |
| Lakeside Volleyball Club | Oakville |
| Lakewood Montessori Christian School, Licensed Child Care Centre | Burlington |
| Laureate College | Burlington |
| Lawn Bowls Milton | Milton |
| Lawson Park Family Tennis Club | Oakville |
| Learning Blocks Montessori School, Burlington, Licensed Child Care Centre | Burlington |
| Learning Blocks Montessori School, Milton, Licensed Child Care Centre | Milton |
| Learning Blocks Montessori School, Oakville, Licensed Child Care Centre | Oakville |
| Learning Through Love, Licensed Home Child Care Agency | Georgetown |
| Learning Tree Childcare, Licensed Child Care Centre | Georgetown |
| Les Coccinelles, Oakville - École élémentaire Patricia Picknell, Licensed Child Care Centre | Oakville |
| Les Coccinelles, Burlington - École Élémentaire Renaissance, Licensed Child Care Centre | Burlington |
| Les Coccinelles, EarlyON Child and Family Centre | Milton |
| Les Coccinelles, Milton - École élémentaire Dyane-Adam, Licensed Child Care Centre | Milton |
| Les Coccinelles, Milton - École élémentaire Sainte-Anne, Licensed Child Care Centre | Milton |
| Les Coccinelles, Oakville - École élémentaire catholique Ste-Marie, Licensed Child Care Centre | Oakville |
| Les Coccinelles, Oakville - École élémentaire du Chêne, Licensed Child Care Centre | Oakville |
| Les Petites Perles, Licensed Child Care Centre | Oakville |
| Lighthouse for Grieving Children and Families, Grief and Bereavement Support Services | Oakville |
| Links2Care, Acton - Wallace St, EarlyON Child and Family Centre | Acton |
| Links2Care, Acton Cobblehill Cooperative, EarlyON Child and Family Centre | Acton |
| Links2Care, Acton Community Hub, EarlyON Child and Family Centre | Acton |
| Links2Care, Georgetown - James St, EarlyON Child and Family Centre | Georgetown |
| Links2Care, Georgetown - Joseph Gibbons Public School, Licensed Child Care Centre | Georgetown |
| Links2Care, Georgetown - Park Public School, Licensed Child Care Centre | Georgetown |
| Links2Care, Georgetown Community Hub, Care at Home for Seniors and Adults with Disabilities | Halton Hills |
| Lions Valley Athletics | Oakville |
| Little Feet Big Dreams Child Care Centre, Licensed Child Care Centre | Oakville |
| Little Hands Daycare Centre, Licensed Child Care Centre | Milton |
| Little Kids Day Care Centre, Oakville - Grosvenor St, Licensed Child Care Centre | Oakville |
| Little Kids Day Care Centre, Oakville - Kingsridge Dr, Licensed Child Care Centre | Oakville |
| Little Leaders Licensed Home Child Care Agency, Licensed Home Child Care Agency | Burlington |
| Little Treehouse Child Care Centre, Licensed Child Care Centre | Oakville |
