Provided is a handle component to be mounted to an opening portion formed in a side plate of a cabinet, including: a flange portion configured to be brought into contact with a peripheral edge portion of the opening portion on an inner surface of the side plate; a bottom wall portion including a recessed surface; a handle, which has a bar-like shape and via which both side portions of the bottom wall portion are connected in a bridging manner; and a protruding portion, which is formed on at least one of both end portions of the bottom wall portion arranged at both ends in a direction orthogonal to a longitudinal direction of the handle, and is configured to cover an end face of the opening portion of the side plate, wherein the protruding portion includes a surface projecting outward to be continuous with the recessed surface.