Abstract: A level holder (10, 10') with a level holding assembly (14, 14') has slots (22, 26, 28, 30) or pegs (58, 60) capable of supporting a level in two different orientations relative to the level holding assembly (14, 14') and a mounting assembly (38, 38') for attaching the level holding assembly to either vertical or horizontal scaffolding members (34, 32) associated with the two different orientations enabling the level holding assembly (14, 14') to support one or more levels (16) in a substantially vertical position regardless of whether attached to a vertical or horizontal member. In one form of the mounting assembly (38) a lateral member (28) used to provide underlying support for a level (16) also functions as one side of a C-clamp assembly (40, 42, 44, 46, 48, 50, 52). In another form of the mounting assembly (38'), another C-clamp having a pair of nonpivotal, resilient arms (64, 66) adapted for attachment to either cylindrical vertical members (34) or planar members (32) is used for attachment.