| Boilermaker Contractors' Association and IB Boilermakers | 23 Construction | IB Boilermakers | Local 203 | Boilermaker Contractors' Association | 2022/05/01 | 2027/04/30 | St. John's |
| CRH (Canada Group Inc.(Corner Brook Terminal) and IB Boilermakers | 44 Retail Trade | IB Boilermakers | Local D559 | CRH (Canada Group Inc.(Corner Brook Terminal) | 2021/03/16 | 2025/03/15 | Corner Brook |
| Marshall Industries Ltd. (Labrador West Maintenance Agreement) and IB Boilermakers | 23 Construction | IB Boilermakers | Local 203 | Marshall Industries Ltd. (Labrador West Maintenance Agreement) | 2023/10/30 | 2025/10/30 | Labrador City |