The board of Trade Union Pro appoints contract field-specific and, if necessary, sector-specific negotiation boards for the duration of its term. In addition, the board can establish forums for research, education or language-based groups and other groups carrying out the operations of the union.
The term of the Pro board and its chairperson (chairperson of the union) is
four years. In addition to the chairperson, the board consists of 15–20 members. The representative body selects the members of the board from all four sectors of Pro so that the representation of each sector is in relation to its number of members.
General substitute members of the board act as sector-based substitute members. If a member of the board from a given sector cannot attend a board meeting, a general substitute member from the same sector acts as a replacement.