Being on the bench means a consultant is between client engagements: unstaffed, working on internal projects, training or proposals, and usually working from the firm’s own office rather than a client site.
Bench headcount is why consulting office demand swings so hard. When big projects end, the office fills; when staffing is tight, it empties. Bookable desks absorb those swings without carrying permanent capacity for the peak bench week of the year.