UK employers, 50 to 249 people
The band where a manager layer forms and almost nothing has been written down yet. Too big to run on the founder's judgment, too small to carry a full people team, which is precisely the gap a fractional seat fills. A large and stable band, and the one where the manager layer problem is most consistent.
Who signs: founder or CEO, COO, the finance director quietly wearing the people hat, a first head of operations.