| Tanglewood School, Licensed Child Care Centre | Oakville |
| Telling Tales, Literacy Promotion Programs and Events | Hamilton |
| Ten Oaks Project, Ottawa | Ottawa |
| The Halton Resource Connection | Milton |
| The Halton Resource Connection, Child Care Directory and Information Line | Milton |
| The Montessori Country School Milton, Licensed Child Care Centre | Milton |
| Their Opportunity, Recreation Expense Assistance | Ottawa |
| Thistleoaks Child Care Centre, Licensed Child Care Centre | Oakville |
| Thrive Counselling, Burlington Head Office | Burlington |
| Thrive Counselling, Caring Dads | Burlington |
| Thrive Counselling, Walk-in Counselling | Burlington |
| Thrive Counselling, Counselling Services | Burlington |
| Thrive Counselling, Milton Office | Milton |
| Thrive Counselling, North Halton Office | Georgetown |
| Thrive Counselling, Oakville Office | Oakville |
| Thrive Counselling, Supervised Parenting Time Program | Burlington |
| Thrive Counselling, The Safety Zone | Halton Region |
| Thrive Counselling, Violence Against Women Program | Halton Region |
| Tiny Hoppers Early Learning Centre, Burlington, Licensed Child Care Centre | Burlington |
| Tiny Hoppers Early Learning Centre, Milton - Sherwood Park, Licensed Child Care Centre | Milton |
| Today's Family Early Learning and Child Care, Hamilton - Central Administration Office, Licensed Home Child Care Agency | Hamilton (City of) |
| Today's Family Early Learning and Child Care, Burlington - Alton Village Public School, Licensed Child Care Centre | Burlington |
| Today's Family Early Learning and Child Care, Burlington - Brant Hills Public School, Licensed Child Care Centre | Burlington |
| Today's Family Early Learning and Child Care, Burlington - C H Norton Public School, Licensed Child Care Centre | Burlington |
| Today's Family Early Learning and Child Care, Burlington - John William Boich Public School, Licensed Child Care Centre | Burlington |
| Today's Family Early Learning and Child Care, Oakville - Brookdale Public School, Licensed Child Care Centre | Oakville |
| Trafalgar Oaks Child Care & Learning Centre, Licensed Child Care Centre | Oakville |
| Trafalgar Ridge Montessori School, Licensed Child Care Centre | Oakville |
| Trans Canada Trail, National Office | Montréal |
| TVO ILC, TVO Mathify | Toronto |
| Tyandaga Tennis Club | Burlington |
| Tyrsa Ukrainian Dance and Bandura School | Burlington |
