Trade union federation
| Part of a series on |
| Organized labour |
|---|
Organizers within trade unions have sought to increase the bargaining power of workers in regards to collective bargaining by acting in collaboration with other trade unions. Multi-union organizing can take place on an informal basis, or on a more formal basis via an umbrella organization comprising multiple trade unions. Such umbrella organizations may be referred to as a trade union federation, trade union confederation, or trade union centre.