What a fractional CMO does
A fractional CMO is a senior marketing leader who works part-time across a few companies. They set strategy, build the plan, hire or manage the team, and report to the CEO and board. They usually do not produce the work themselves.
What a marketing agency does
An agency provides specialists who execute: content, paid media, design, SEO, or outbound. Most agencies specialize in one or two disciplines and expect the client to provide strategy and coordination.
How to choose
- Choose a fractional CMO if you have execution capacity but no clear strategy or senior owner.
- Choose an agency if you have a clear strategy and need more hands on a specific channel.
- Choose a full-time CMO once marketing is a large budget line and needs daily leadership.
- Choose a full-stack GTM agency if you need strategy and execution across several channels and do not want to coordinate multiple vendors.
Watch for the coordination gap
The most common failure is hiring a fractional leader and three specialist agencies, then discovering nobody owns how the pieces fit together. Each vendor optimizes its own metric. Before signing, ask who is accountable for pipeline across all of them.
Frequently asked questions
How much does a fractional CMO cost?
Fees vary widely by experience and time commitment. Compare the cost to a full-time salary plus benefits and recruiting time.
How long should a fractional engagement last?
Most run six to 18 months, often ending when the company hires a full-time leader.
Can a fractional CMO manage agencies?
Yes, and that is a common setup. Make sure their hours are enough to manage vendors well.
