Best fractional COOs for professional services firms

7 firms and practitioners offer fractional COO work and name professional services firms among the clients they serve. First on the list are Altus CXO, Leadership Services and Purpose In Action. 5 publish a monthly fee, from $2,200 to $8,255 a month. The other 2 quote.

Updated 21 Oct 2026 Listed 7 Order published rule

A fractional COO runs the operating cadence, turns the founder's priorities into accountable owners and fixes the processes that break as headcount grows.

How this list is built. Every firm and practitioner here offers fractional COO work on its own site and names professional services firms among its clients. Order is editor's pick, then listings that name the industry, then a published fee, then name. Nobody pays to appear or to move up. Full methodology.