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Influencer agencies: what they do, how they are paid, and how to choose one
Influencer agencies explained for brands: the three jobs they do, the five ways they are paid, usage rights, FTC disclosure, questions to ask and red flags.
TL;DR. Influencer agencies find creators, negotiate with them, brief them, check disclosure and report results, and they are usually paid by retainer, project fee, a percentage of budget, a markup on creator fees or a performance model. Before you hire one, decide whether you are buying reach on the creator's own channel or ads made by creators that run in your ad account, because those are different jobs and different agencies. Then ask the four questions below about fees, usage rights, disclosure and measurement.
What influencer agencies do, and who this guide is from
An influencer marketing agency sits between a brand and creators. In our experience the work is much the same in most shops: choosing creators, contracting them, writing and shipping briefs, approving content, checking disclosure and reporting.
A disclosure before we go on. Flixr is a performance marketing agency for apps, games and commercial brands, and we make UGC and creator video ourselves, with 7,600+ creators ready to brief. We are not a classic influencer agency, and the difference is the most useful thing this page can explain. We do not name or rank other agencies here; this is a guide to judging any of them.
Three jobs that all get called "influencer"
Our read: when a brand says it wants an influencer agency, it usually wants one of three things.
| What you are buying | Where it runs | What you measure | What to look for in the agency |
|---|---|---|---|
| Reach on the creator's channel | The creator's own feed, labelled as a paid partnership | Views, engagement, discount-code or link sales | Creator relationships, vetting, disclosure discipline |
| Creator content as ads | Your ad account, as partnership ads (Meta) or Spark Ads (TikTok), or as your own ads | Cost per result in your account, hook rate, purchases or installs | Briefing to a hook, volume, testing, usage rights |
| Creator-style ads made to a script | Your ad account, as your ads | The same as above | Casting, scripting, editing, speed |
The first is classic influencer marketing. The second and third are performance creative that happens to use people. If your growth comes from paid social, the second and third usually matter more, and an agency built for the first may not be set up to make sixty variants and read which ones the auction funds. Our UGC ads guide covers that side in depth, and UGC or produced covers when a scripted actor beats a real creator.
How influencer agencies are paid
Agencies publish few prices, and we will not quote any. The models themselves are well described. Kolsquare's October 2026 breakdown defines five:
- Retainer: "a fixed, regular payment that covers an agreed amount of work."
- Project fee: "a pre-agreed price for a single campaign."
- Percentage of budget: "the agency takes a share of total campaign spend or creator fees."
- Markup on creator fees: "the agency contracts creators directly and resells their content with an added margin."
- Performance: "pays the agency based on whether it hits certain targets."
None of these is wrong. The problem is not knowing which one you are on. In an October 2026 Digiday report, a poll of members of the Incorporated Society of British Advertisers' media leaders group and creator forum asked how transparent their creator agency fees were: "Just 42% said fully." Another 21% said partially and 37% were unsure.
Our view: whichever model you choose, ask for creator fees as a separate line from the agency fee, so you can see what the creator was paid and what the agency kept.
Usage rights decide whether content can become ads
The cheapest creator post can become the most expensive one if you later want to run it as an ad without the rights to do so.
Meta draws the line plainly in its creator guidance: "Branded content is an organic post that you create with a 'Paid partnership' label to disclose a brand relationship," while "Partnership ads are when a brand specifically puts ad spend behind that content to reach people beyond your followers." The same page tells creators they can "negotiate for higher pay from the brand given the extra usage rights."
On TikTok, Spark Ads let an advertiser publish ads "using organic posts made by other creators (with their authorization)," and TikTok's June 2026 help page notes you can customise how long the authorization code lasts.
Kolsquare puts it in buyer terms: "The right to reuse creator content beyond the original post may cost you more." So agree in writing, before the brief goes out, which platforms the content may run on as ads, for how long, and whether you can edit it into new cuts. Our guide to TikTok UGC creators covers authorization in more detail.
Disclosure and fake followers are the agency's job too
In the US, the FTC's guidance for influencers is specific. It says to "disclose when you have any financial, employment, personal, or family relationship with a brand," that free or discounted products count, and that the disclosure "should be placed with the endorsement message itself." For video, "the disclosure should be in the video and not just in the description uploaded with the video." It also warns: "Don't assume that a platform's disclosure tool is good enough."
Separately, the FTC's Consumer Reviews and Testimonials Rule, which "went into effect on October 21, 2024," covers buying fake indicators of social media influence (for example, indicators generated by bots) that you "knew or should have known to be fake." The FTC's own Q&A says a business is not liable unless there were "some red flags that should have tipped you off that the followers were fake." An agency that vets creators should be able to show you how it looks for those red flags. This is a summary of FTC guidance, not legal advice.
How to choose an influencer marketing agency
- Name the job first. Reach on creators' channels, creator content as ads, or creator-style ads to a script. Hire for the job, and ask for examples of that job only.
- Ask how the agency is paid, line by line. Which of the five models, whether creator fees appear separately, and whether any markup applies.
- Settle usage rights before casting. Platforms, duration, paid use (partnership ads, Spark Ads) and edit rights, in the creator contract, not in a later email.
- Ask how they vet creators. Audience location, engagement that looks real, past brand work, and how they check for bought followers.
- Ask who checks disclosure. The answer should be the agency, before anything goes live, in the video as well as the caption.
- Agree what success is, in your numbers. For reach campaigns, sales by code or link. For ads, cost per purchase or install in your own account or MMP. Our case for measuring creative on purchases explains why clicks are not enough.
Red flags
- Reports built on views and likes only, with no link to sales or installs.
- Creator fees bundled into one number you cannot see inside.
- No written usage-rights terms, or rights that end before your ads would.
- A roster of creators the agency represents, offered as the only option, whatever your audience.
- Disclosure left to the creator.
- No answer to "how many versions can you deliver per month, and how do you decide what to make next?" if you are buying ads.
Where Flixr fits
If what you need is the second or third job (creator and UGC video made as ads, run and judged in your ad account), that is our work: we make the creator video, cast actors where trust has to land, and are judged on your own numbers. Examples on our showcase include 12 Hours Later for Mandala Scrubs (UGC, authentic) and First Night Drive for Veygo (UGC, authentic). If you need reach on creators' own channels, a classic influencer agency is the better fit. Our free UGC creator search is a starting point either way, and our UGC ads service for commercial brands has more.
Questions people ask
What does an influencer agency do? It finds and vets creators, negotiates fees and rights, briefs them, approves content, checks disclosure and reports results. Some also run the paid side, putting ad spend behind creator content.
How do influencer agencies charge? The common models are a retainer, a project fee, a percentage of campaign spend or creator fees, a markup on creator fees, or a performance model, as Kolsquare's 2026 guide sets out. Ask for creator fees as a separate line.
What is the difference between an influencer agency and a UGC agency? Our read: an influencer agency mostly buys reach on creators' own channels, while a UGC or creator-ads agency makes creator content to run as ads in your account. The skills, contracts and measures of success differ.
Do influencers have to disclose paid posts? In the US, the FTC says to disclose any financial, employment, personal or family relationship with a brand, including free or discounted products, and to put the disclosure in the video itself, not only in the description.
Can I run an influencer's post as an ad? Yes, if they authorize it and you have the usage rights. Meta calls these partnership ads, and TikTok's equivalent is Spark Ads, which use creators' organic posts with their authorization.
Sources: Kolsquare, How influencer agencies price, 13 Oct 2026; Digiday, 2 Oct 2026; Meta for Creators, Earn from brands; TikTok, About Spark Ads (June 2026); FTC, Disclosures 101 for Social Media Influencers; FTC, Consumer Reviews and Testimonials Rule: Questions and Answers.