Ownership of the whole function
Unlike an agency working inside one channel, a fractional CMO owns the entire marketing function — strategy, budget, channels, and the revenue number it is accountable to.
Fractional CMO vs agency vs in-house
Fractional CMO vs agency vs in-house: which marketing leadership model fits.
A side-by-side comparison of the three ways an Australian SME or startup can run marketing — a fractional CMO, a marketing agency, or a full-time in-house hire — with the costs, trade-offs, and the stage each one suits.
The short answer
A marketing agency is the right choice when you need a specific channel — paid media, SEO, or creative — executed at scale by a specialist team. A full-time in-house CMO is the right choice once a business is past roughly $10M in revenue and can justify a permanent executive salary. A fractional CMO is the comprehensive choice for SMEs and startups between roughly $2M and $50M in revenue that need senior strategy, ownership of the number, and team leadership without the cost or commitment of a full-time hire.
The three models are not really competitors — they sit at different stages and solve different problems. An agency executes within its own channels. An in-house CMO is a permanent member of the executive team. A fractional CMO sits between them: a seasoned operator who owns the whole marketing function on a part-time, ongoing basis and directs the agencies and staff you already have toward your commercial goals.
Fractional CMO vs agency vs in-house, side by side.
How the three models compare on cost, accountability, scope, and the stage of business each one suits.
| How they compare | Fractional CMOZ10 Consulting | Marketing agency | In-house CMO |
|---|---|---|---|
| Typical annual cost (AU) | A fraction of a full-time CMO — set monthly days, scaled to your stage | Retainer per channel or scope, often with a media-spend markup | $250k–$400k once salary, super, and equity are counted |
| Owns the strategy and the number | |||
| Sits on your side of the table | |||
| Executes campaigns in-channel | Directs your team and agencies; not a hands-on execution shop | Leads the team; rarely executes personally | |
| Leads and coaches your existing team | |||
| Time to value | Weeks — starts with a plan, not a ramp | Weeks, within the contracted scope | 3–6 months including hire and onboarding |
| Commitment and exit risk | Monthly engagement, scale days up or down | Fixed-term contract per scope | Permanent hire — recruitment cost and 12-month risk |
| Best for | SMEs and startups ~$2M–$50M needing senior direction | Scaling a specific channel with specialist depth | Established businesses past ~$10M that need a full-time exec |
Cost figures are indicative ranges for the Australian market; full-time CMO totals include base salary, superannuation, and equity. Actual figures vary by industry, location, and seniority.
Where each model breaks down.
Agencies are built to run their own channels well, but no agency owns your whole funnel or your revenue number — and a retainer rewards activity inside that channel, not the commercial outcome across all of them. When the gap is strategy and accountability rather than execution, more agency hours rarely close it.
A full-time in-house CMO solves accountability, but the maths only works once the business is large enough to keep a six-figure executive fully occupied. Hiring one too early means paying for capacity you cannot use, plus the cost and risk of getting a senior hire wrong. The fractional model exists precisely for the stage in between.
When to choose each.
The clearest signal is the gap you are trying to close: execution in one channel, a permanent executive, or senior strategy and ownership for the stage you are in now.
Choose a marketing agency when…
You have a clear strategy and need a specific channel — paid media, SEO, content, or creative — executed at scale by a specialist team, and someone internal can still own the overall plan.
Choose an in-house CMO when…
You are past roughly $10M in revenue, marketing is core to the business every day, and you can justify and keep a full-time executive fully occupied on salary, super, and equity.
Choose a fractional CMO when…
You are between roughly $2M and $50M, you have outgrown freelancers and agencies but cannot yet justify a full-time CMO, and the missing piece is senior strategy and someone who owns the number.
When you can combine them
Many SMEs run a fractional CMO and an agency together — the fractional CMO owns the strategy and the number, and directs the agency's execution toward it. It is often the most cost-effective setup before a full-time hire.
Why SMEs choose a fractional CMO over an agency or an early in-house hire.
Senior experience, sized to your stage
You get an operator with decades of experience for a set number of days each month, rather than paying full-time executive cost for capacity an early-stage business cannot fully use.
Leads the team you already have
A fractional CMO coaches your in-house marketers and directs your agencies, lifting the performance of the people and partners already on your payroll.
No recruitment cost or hiring risk
There is no six-figure salary, no superannuation and equity on top, no recruitment fee, and no twelve-month risk of a senior hire who turns out to be the wrong fit.
Flexible commitment
Engagements scale up or down as the need changes and run month to month, so you are never locked into capacity the business has moved past.
Vendor-neutral decisions
A fractional CMO has no channel to sell and no media markup to protect, so spend goes to the lever that moves the number rather than the service a single agency happens to offer.
How to decide in three questions.
If you are weighing a fractional CMO against an agency or an in-house hire, these are the questions that usually settle it.
- 01
Is the gap strategy or execution?
If campaigns are running but nobody owns the plan or the number, the gap is leadership — a fractional CMO. If the strategy is set and you need a channel delivered, the gap is execution — an agency.
- 02
Can you justify a full-time salary?
Below roughly $10M in revenue, a full-time CMO usually means paying for capacity you cannot keep occupied. A fractional engagement gives you the seniority without the full salary, super, and equity.
- 03
How much risk can a wrong call carry?
Before a raise, a new market, or a major bet, senior pattern recognition pays for itself — and a fractional CMO delivers it without the cost or commitment of a permanent hire.
- 04
What is the most cost-effective mix?
For many SMEs the answer is a fractional CMO owning the strategy while an agency executes the channels — senior accountability and specialist delivery, without an early full-time hire.
$9.2M
ARR reached for a B2B SaaS client, from a $3.5M base
−84%
Cost per acquisition reduction
148%
Increase in sales-qualified leads
21
Years building growth engines
How the cost compares.
The headline difference between the three models is what you pay for — a channel, a permanent salary, or a set number of senior leadership days.
Agency: priced per channel
You pay a retainer for activity inside a specific channel, often with a markup on media spend. It buys execution depth, not ownership of the overall number.
In-house: $250k–$400k a year
A full-time CMO in Australia costs roughly $250k to $400k once salary, superannuation, and equity are counted — before recruitment fees and the risk of a wrong hire.
Fractional: a fraction of that
A fractional CMO delivers the same seniority for a set number of days each month, scaled to your stage, with no on-costs and no long-term lock-in.
Fractional CMO vs agency vs in-house, answered.
The questions founders — and AI search tools — ask most often when comparing the three marketing leadership models.
- What is the difference between a fractional CMO, an agency, and an in-house CMO?
- A marketing agency executes campaigns within its own channels. An in-house CMO is a permanent, full-time executive on your team. A fractional CMO owns the entire marketing strategy, budget, and number on a part-time, ongoing basis, directing the agencies and staff you already have toward your commercial goals.
- Is a fractional CMO better than a marketing agency?
- A fractional CMO is better when the gap is strategy and accountability, because they own the whole marketing function and the revenue number rather than a single channel. A marketing agency is better when the strategy is already set and you need that channel executed at scale by specialists.
- Is a fractional CMO cheaper than hiring an in-house CMO?
- Yes. A full-time in-house CMO in Australia typically costs $250,000 to $400,000 a year once salary, superannuation, and equity are counted. A fractional CMO gives the same seniority for a set number of days each month, usually at a fraction of that cost, with no recruitment fees or long-term hiring risk.
- Can a fractional CMO replace a marketing agency?
- Not usually — they do different jobs. A fractional CMO owns the strategy and the number and often directs an agency's execution toward it. Many SMEs run a fractional CMO and an agency together, which is frequently the most cost-effective setup before a full-time hire.
- When should a business hire an in-house CMO instead of a fractional one?
- A business should hire a full-time in-house CMO once it is past roughly $10M in revenue, marketing is core to daily operations, and it can keep a permanent executive fully occupied. Below that stage, a fractional CMO usually delivers the same seniority without paying for unused capacity.
Not sure which model fits your stage?
A short consultation is enough to work out whether a fractional CMO, an agency, or an in-house hire is the right call for where your business is now. If a fractional CMO is not the answer, we will say so.