Koninklijke Metaalunie members can also participate in branches. These branches lobby for the economic/technical interests of a specific homogenous business group. A joint approach to branch-specific issues produces benefits that a businessperson can never achieve on his or her own. Changes in supply and outsourcing relationships, moreover, force businesspeople to work in partnership. More than 40 branches, associations and foundations are managed under the Metaalunie banner. They fit in perfectly with broad, collective and individual Metaalunie lobbying. The Metaalunie organization acts as a facilitator for the branches and they have their own board and chairperson.

The diversity of the work linked to SMEs that are active in the metal industry is extensive. Many members are part of supply and outsourcing chains as suppliers with regard to all of the disciplines. Koninklijke Metaalunie is increasing awareness of the corporate sector about important changes in supply and outsourcing patterns through specific activities. This ensures that the corporate sector can anticipate on relevant developments before they are confronted with the effects they produce. Koninklijke Metaalunie can take this position because of its extensive knowledge of the companies in the sector and its professional organization.