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CMO AS A SERVICE · 2026

CMO as a service.
What the model means and how it works.

By Lewis Waldron · Co-Founder, Underdog Ghostwriting · Updated April 2026

CMO as a service is the subscription model for the full marketing function. Here is what it covers and when it makes sense.

Quick Answer

CMO as a service is a subscription model for senior marketing leadership and execution. Rather than hiring a person, a company subscribes to a function: strategy, content, outbound, and reporting provided by an external team on a retainer basis. It is more comprehensive than a fractional CMO because it covers the full marketing department rather than just the strategic individual.

How CMO as a service differs from fractional CMO

A fractional CMO is a person. CMO as a service is a function. A well-structured CMO as a service arrangement provides strategy, execution, reporting, and strategic advisory, collectively covering what a full marketing leadership team would do rather than what one person can do part-time.

The service model also provides continuity that a single fractional hire cannot guarantee. If an individual becomes unavailable, the service continues. This matters for companies that have experienced disruption from senior departures. Read about the outsourced CMO model.

Who benefits most from CMO as a service

The model is most valuable for B2B companies between $2M and $15M in revenue that have outgrown founder-led marketing and need consistent, professional execution without building an internal team. Revenue in that range, with deal values above $5,000, makes the economics compelling. One new client per quarter from content and outbound typically covers several months of a well-priced CMO as a service retainer. Read about fractional marketing teams.

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Frequently asked questions

What is CMO as a service?
CMO as a service is a subscription model where an external team provides the full chief marketing officer function on a retainer basis, covering strategy, content, outbound, and reporting. It differs from hiring a fractional CMO individual in that a team provides the function rather than a single person.
How much does CMO as a service cost?
CMO as a service retainers in 2026 typically range from $4,000 to $12,000 per month depending on scope. Comprehensive arrangements covering strategy, content production, outbound sequencing, and reporting sit at the higher end. Strategy-only arrangements sit at the lower end.
Is CMO as a service better than a fractional CMO?
CMO as a service is better when execution capacity is the bottleneck, because the function covers both strategy and execution under one retainer. A fractional CMO individual is better when senior strategic oversight is the primary need and the company has strong internal execution capacity.
What companies benefit most from CMO as a service?
B2B companies between $2M and $15M in revenue that have outgrown founder-led marketing benefit most. The model works particularly well for professional services, SaaS, and consulting firms where LinkedIn authority and outbound pipeline generation are the primary growth levers.
Lewis Waldron
Co-Founder, Underdog Ghostwriting
Lewis Waldron is co-founder of Underdog Ghostwriting, a hybrid content and lead generation agency. He has a background spanning defence, corporate finance and management consultancy, and has helped B2B founders generate measurable pipeline through content and outbound systems.
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Underdog Ghostwriting is a hybrid content and lead generation agency. We build content that builds authority and outbound systems that convert it into pipeline. Visit underdog-ghostwriting.com.