| A |
| Alchemy Fitnessnot edited since 2022 | Kirkendall North, no street on record | | | |
| Amazing Fitness | 702 King Street East, Beasley | | | |
| Anytime Fitness | Heritage Green, no street on record | | | |
| Anytime Fitness | 59 King Street East, Beasley | | | |
| Anytime Fitness | Dundas, no street on record | | | |
| B |
| Body Pro Gymnot edited since 2020 | Inch Park, no street on record | | | |
| C |
| Crunch Fitness | Rockcliffe Survey, no street on record | | | |
| Crunch Fitnessnot edited since 2022 | University Gardens, no street on record | | | |
| Crunch Fitnessnot edited since 2022 | Fruitland, no street on record | | | |
| Crunch Fitnessnot edited since 2020 | Ryckmans, no street on record | | | |
| D |
| de la sol yoga studios | 430 York Boulevard, Strathcona | delasolyoga.com | +1 905 540 3569 | |
| F |
| Fit4Lessnot edited since 2020 | Cherry Heights, no street on record | | | |
| Fit4Lessnot edited since 2022 | The Delta, no street on record | | | |
| Fit4Lessnot edited since 2020 | Stoney Creek, no street on record | | | |
| Fresh Fhitt Athletic | Hamilton Mountain, no street on record | | | |
| G |
| GoodLife Fitnessnot edited since 2020 | Hamilton Mountain, no street on record | | | |
| GoodLife Fitness | 1550 Upper James Street, Ryckmans | goodlifefitness.com | +1 905-388-2725 | |
| GoodLife Fitnessnot edited since 2020 | Stoney Creek, no street on record | | | |
| GoodLife Fitnessnot edited since 2019 | 1096 Wilson Street West, Duff's Corners | | | |
| GoodLife Fitnessnot edited since 2019 | Hess Village, no street on record | | | |
| GoodLife Fitnessnot edited since 2020 | Berrisfield, no street on record | | | |
| Gravity Climbing Gymnot edited since 2019 | 70 Frid Street, McMaster Innovation Park | gravityclimbinggym.com | +1-905-522-8778 | |
| Gym on Lockenot edited since 2022 | 220 Locke Street South, Kirkendall North | getyourgymon247.com | +1-905-526-9000 | |
| M |
| Modo Yoga | 101 Osler Drive, University Gardens | | | |
| O |
| One:One Manufacturingnot edited since 2021 | 265 Barton Street, Cherry Heights | onetoonemanufacturing.com | | |
| Orangetheory Fitnessnot edited since 2019 | Stoney Creek, no street on record | | | |
| Orangetheory Fitness | Duff's Corners, no street on record | | | |
| Oxygen Yoga & Fitness | Winona, no street on record | | | |
| P |
| Pulse Fitness Centre | Westdale, no street on record | rec.mcmaster.ca | | |
| S |
| SPINCO | Beasley, no street on record | | | |
| Studio Zee Pilates | 430 York Boulevard, Strathcona | studiozeepilates.com | +1 905 667 1045 | |
| T |
| The Gym | 288 Queenston Road, Normanhurst | thegymhamilton.com | +1 905 393 9091 | |
| The Gym on Fennell | 989 Fennell Avenue East, Hampton Heights | thegymonfennell.com | +1-905-575-7777 | |
| X |
| Xelf Fitnessnot edited since 2020 | 1 West Avenue South, Beasley | xelf.ca | +1-905-741-9186 | |
| Y |
| Yin Yoga Studio | 343 Wilson Street East, Ancaster | yinyogaancaster.com | +1-905-977-0338 | |
| Young Park Martial Arts | Hamilton Mountain, no street on record | | | |