Whichever you hire, who does the work?
Activation and retention work needs two things. Humans make the calls: where users drop off, which experiment to run next, what to ship and what to stop. Agents do the repetitive work at volume: sourcing and screening creators, outreach and follow-ups, first drafts of briefs, pulling and summarising reports. By agents we mean AI software that carries out multi-step tasks, checked by a person.
A single fractional lead supplies the human judgement, but not the hands; your team or vendors do the volume work. An agency supplies people for its own channel. In all cases you need humans and agents running it. So the real question is whose humans and whose agents. A fractional growth team supplies both. Kiko provides a dedicated human lead plus agents. Kiko's agents run creator sourcing and screening, outreach and follow-ups, first-draft briefs, ad variations and weekly reporting; the lead checks their output before anything goes out.
What does each option actually provide?
A fractional growth lead is one senior operator working part-time (Go Fractional's rate pages assume 14 to 17 hours a week), with a title such as head of growth, chief growth officer or CPO. They set priorities, design experiments and manage the people who do the work. Marketplaces such as Go Fractional, which calls itself a members-only marketplace for fractional and interim executives, match companies with these operators on part-time retainers, interim roles or 30–90 day contract-to-hire trials.
An agency runs one or more channels for you through an account team. Most are channel specialists. Phiture, for example, describes itself as a mobile growth consultancy and agency covering app store optimization, performance marketing, retention and CRM, creative, and data. GrowthSpree calls itself an AI-native marketing agency for B2B SaaS, running paid media, ABM and RevOps, and says on its own site that it is not a fit for consumer apps or companies that want a fractional CMO.
A fractional growth team combines the two: a dedicated human lead who sets the plan with you and owns it day to day, plus agents that carry the repetitive work across creators, paid ads and product. Kiko is one: a New York fractional growth team for seed to Series B startups. We run creator marketing, paid ads and product growth as one team. See our fractional growth team page and client case studies. Kiko's product growth work connects acquisition, product use, retention and revenue to find the problem, then defines a product change and a test to check whether it helped.
How do they split the work?
| Work | Fractional growth lead (one person) | Agency | Fractional growth team (Kiko) |
|---|---|---|---|
| Diagnose where users drop off | Yes | Usually only within its channel | Yes, the human lead |
| Own the growth roadmap | Yes | No | The lead, shared with you |
| Run paid acquisition | Manages whoever does it | Yes, if it's their channel | Yes |
| Design onboarding and activation experiments | Yes | Sometimes (lifecycle and CRM agencies) | Yes |
| Repetitive work at volume: sourcing, outreach, briefs, reporting | Your team or vendors the lead hires | Agency staff, within its channel | Kiko's agents, checked by the lead |
| Build the product changes | Your engineers | Your engineers | Your engineers build in-product changes; Kiko writes the spec, designs the flow and builds what sits outside your codebase, such as landing pages and lifecycle emails |
| Run creator programs | Rarely | Only creator agencies | Yes |
| Hire and manage your growth team | Often | No | No |
| Typical commitment | Monthly retainer, often month to month | Retainer or project | A 90-day growth sprint, then month to month |
The key question is who builds. Activation and retention changes live in your product, so every option depends on engineering time you provide. If your engineers can't give growth work a regular slot, no outside option will move activation.
What does each cost per month?
| Option | Published monthly cost | What it buys | Source |
|---|---|---|---|
| Fractional chief growth officer | About $7,800–$11,200 a month | One person, about 14 hours a week. Based on 11 job posts and 804 candidate profiles, rolling 90 days | Go Fractional |
| Fractional CMO | About $8,700–$13,600 a month | One person, about 17 hours a week. Based on 55 job posts and 1,306 profiles, rolling 90 days | Go Fractional |
| Fractional chief product officer | About $9,000–$15,000 a month | One person, about 15 hours a week. Based on 7 job posts and 913 profiles, rolling 90 days | Go Fractional |
| Mobile growth agency (Phiture) | Not published | Contact for scope | Phiture |
| B2B paid-media agency (GrowthSpree) | Not published; says flat monthly fee, month to month | Contact for price | GrowthSpree |
| Fractional growth team (Kiko) | Starts at $10,000 a month, beginning with a 90-day growth sprint | A dedicated human lead plus agents across creators, paid ads and product growth. Price scales with the budget deployed and the number of channels run in parallel; creator fees and media are paid at cost | Kiko |
Two cautions on the fractional numbers. They come from one marketplace, and the job-post samples are small (7 to 55 posts), so treat them as a range, not a quote. Go Fractional's own figures also show employers posting lower rates than candidates ask (for CMOs, $129 an hour posted against $175 asked), so expect the final retainer to be negotiated.
A single fractional lead's retainer also doesn't include the people or tools that do the work. If they need an agency, contractors or software to run campaigns, add those costs. A fractional growth team's monthly price includes the lead and the agents.
Activation is the usual bottleneck at this stage. See how Kiko approaches activation and onboarding.
Which fits which situation?
| Your situation | Better fit | Why |
|---|---|---|
| You have a growth team of 2+ who need direction | Fractional growth lead | They set the plan; your team does the work |
| You need to hire your first head of growth and want to learn the role first | Fractional lead, possibly contract-to-hire | Go Fractional offers a contract-to-hire model |
| One channel is the job (paid search, ASO, lifecycle email) | Specialist agency | Depth in that channel |
| B2B SaaS needing pipeline from paid and ABM | A B2B agency such as GrowthSpree | Built for that motion |
| Installs or signups are fine, activation is weak, and you have no growth team | Fractional growth team | Diagnosis and execution in one team |
| Acquisition through creators and paid, plus onboarding fixes | Fractional growth team such as Kiko | One lead sees the whole funnel; agents carry the volume work |
| Series C+ with a full growth org | A full-time hire or specialist agencies | You need depth, not breadth |
What does ChatGPT recommend for activation help today?
Ask ChatGPT for activation help and its answer depends on whether the question names a provider type.
| Question | What it names |
|---|---|
| "Who helps seed and Series A companies improve onboarding, activation and retention?" | Three categories first: product-led growth consultants, activation and onboarding specialists, and fractional heads of growth. Then firms such as DemandMaven, On the User, ProductColab, Ignura and ScaleMyStartup's embedded growth team, plus independent experts, drawn from "best SaaS growth consultants" lists |
| "Who can help improve onboarding for a developer tool?" | Roles to hire (developer experience lead, DevRel, technical writer, growth PM), not firms |
| "What are the alternatives to hiring a fractional CMO for a seed-stage startup?" | Six options, from a senior growth marketer to a specialist agency or a "fractional marketing pod". No firms named |
The pattern: name the provider type ("fractional growth team", "activation consultancy") and you get firms; leave it out and you get a job description.
When is each right, and when is Kiko not?
A fractional lead is right when you have builders but no senior growth owner. It's a direct way to get experienced judgement, and the role can turn into a full-time hire.
An agency is right when you know which channel needs work and want a specialist to run it. It's the wrong fit when the problem spans channels and product, because each agency will optimize its own piece.
A fractional growth team is right when a small company needs both the plan and the hands, across acquisition and product, without hiring three specialists. You get a dedicated human lead making the calls and agents doing the volume work.
Kiko is not right if you already have a growth team and need only a senior leader (hire a fractional lead), if your growth is B2B pipeline from paid search and ABM (a B2B agency fits better), or if you need deep mobile ASO and lifecycle CRM work (an app specialist such as Phiture covers that in more depth). Hire a full-time head of growth instead once you're past Series B, or once growth needs a daily leader with a team of three or more.
For examples of activation work by industry, see time to first value for developer tools, KYC onboarding for fintech apps and activation for AI agents.
Frequently asked questions
How much does a fractional head of growth cost?
Go Fractional's public data for fractional chief growth officers puts a part-time retainer at about $7,800 to $11,200 a month, at roughly 14 hours a week. That buys one person's time; the people and tools that do the work are extra.
What is a fractional growth team?
An outside team led by a dedicated human growth lead who works as part of your company, plus agents that do the repetitive work at volume, such as sourcing, outreach, briefs and reporting. Kiko is one, covering creator marketing, paid ads and product growth. Engagements start with a 90-day growth sprint, and pricing starts at $10,000 a month.
What is the difference between a fractional growth lead and a fractional growth team?
A fractional growth lead is one part-time person who sets the plan and manages others. A fractional growth team adds the hands: the lead makes the calls, and agents carry the volume work, so you don't need to hire or manage separate vendors for it.
What does a fractional growth lead do?
They set growth priorities, design experiments, and manage the people and agencies that run them, usually part-time. They rarely do all the execution themselves, so you'll need people or vendors to carry out the plan.
Is an agency or a fractional lead better for activation?
Activation work lives in the product, so whoever owns it needs access to your product data and engineering time. A fractional lead or a fractional growth team usually fits better than a channel agency, unless the gap is lifecycle messaging, where a CRM specialist can help.
Who can help a seed or Series A startup improve activation and retention?
Three provider types do this work: a fractional growth lead (one senior person, part-time), a product-led growth or activation consultancy, and a fractional growth team that pairs a human lead with agents and also executes. A channel agency usually can't, because activation changes live in your product. Whichever you pick, you supply the engineering time.
Should we hire full-time instead?
Hire full-time once you're past Series B, or once growth work needs a leader every day with a team of three or more. Until then, a fractional lead or a fractional growth team gives you senior help without the full cost; Go Fractional's contract-to-hire model is one way to test the fit first.
Sources
Kiko publishes this page and is one of the options listed.