Fractional CEO vs Interim CEO: What's the Difference?

The short answer

A fractional CEO works part-time, usually one to three days a week, on an ongoing basis. An interim CEO works full-time for a fixed period, usually three to twelve months, to cover a gap or lead through a specific event.

Side-by-side comparison

• Time: fractional is part-time; interim is full-time.
• Length: fractional is open-ended on a rolling retainer; interim has a set end date.
• Typical reason: fractional suits growing businesses that need senior leadership but not five days a week; interim suits a sudden departure, a crisis, a turnaround or a sale.
• Cost: fractional is a monthly retainer for the days agreed; interim is usually a full-time day rate for the length of the assignment.
• Outcome: fractional builds the business over time; interim stabilises it and hands over to a permanent CEO.

When a fractional CEO is the right choice

• The founder wants to step back from running the business day to day.
• The business is growing but can't yet justify a full-time chief executive.
• An investor wants experienced leadership across a portfolio company.
• You are preparing for growth, fundraising or an exit over the next one to three years.

When an interim CEO is the right choice

• Your CEO has left suddenly and the business needs someone in the seat full-time.
• The business is in difficulty and needs a turnaround now.
• A sale, merger or major restructure needs full-time leadership until it completes.

Can one become the other?

Yes. Interim assignments often step down to a fractional role once things are stable, and fractional roles can step up to interim during a critical period. The best arrangements agree this flexibility at the start.

How I work

I offer both models, from Newcastle and across the UK. Read more about fractional CEO support and fractional COO support, or see what consultants typically charge in the UK.