Best fractional COOs in the EU

9 firms and practitioners offer fractional COO work in the EU, counting those that work worldwide. First on the list are ScaleUpExec, Catalant and Fractional Jobs. One publishes a monthly fee: $5,000 a month at ScaleUpExec. The rest quote.

Updated 21 Oct 2026 Listed 9 Order published rule

Three months is the common minimum, and integrator-style engagements often run 6 to 24 months while the operating system takes hold.

2

Catalant

Marketplace. COO, CSO.

3 named clients Serves Global
Fee on request
3

Fractional Jobs

Marketplace. CFO, CMO, COO, CRO, CTO, CPO, CHRO.

Serves US, UK, EU, Australia, Canada
Fee on request monthly retainer
4

Fractionus

Marketplace. CFO, CMO, COO, CRO, CTO, CPO, CHRO, CAIO, General Counsel.

4 named clients Serves US, UK, EU, Australia
Fee on request no minimum
7

Toptal

Marketplace. CFO, CMO, COO, CTO, CPO.

3 named clients Serves Global
Fee on request
8

Umbrex

Collective. CFO, CMO, COO, CTO, CPO, CHRO.

Serves Global
Fee on request

How this list is built. Every firm and practitioner here offers fractional COO work on its own site and serves the EU or works worldwide. Order is editor's pick, then a published fee, then name. Nobody pays to appear or to move up. Full methodology.