To choose an influencer marketing agency (agence de marketing d'influence in French), write a short brief, shortlist three to five agencies, and score each on the same grid: strategy, creator vetting, measurement, compliance, reporting and fees. Ask for evidence, not promises. The best agency is the one that can show how it picks creators and proves results beyond follower counts.
Key takeaways
- Start with your goal and budget; agencies differ in what they are good at.
- Score every candidate on the same weighted grid so the decision is comparable.
- Ask how they vet creators, measure results and handle disclosure rules.
- Read the contract for usage rights, exclusivity, fees and who owns the data.
- Treat vague metrics, guaranteed virality and hidden mark-ups as red flags.
What should you decide before you contact agencies?
Decide your goal, your budget range, your markets and your success measure. Without these, agencies will pitch what they sell, not what you need.
- Goal: awareness, traffic, sales or affiliate revenue. Each needs different creators and metrics.
- Budget: fees, creator payments and paid amplification, kept separate.
- Markets and languages: a French-speaking audience in France, Belgium, Switzerland or Canada differs from market to market.
- Success measure: a number you can check, such as sales through creator codes or cost per qualified visit.
- Decision owner and timeline.
How do you score agencies?
Use a weighted grid. Score each criterion from 1 to 5, multiply by its weight and add up. These weights are a hypothetical starting point; change them to suit your goal.
| Criterion | Weight | What a 5 looks like |
|---|---|---|
| Strategy and fit | 25% | A clear idea for your goal and audience, with category knowledge |
| Creator selection and vetting | 20% | Documented method, audience checks, past brand-safety review |
| Measurement | 20% | Metrics tied to your goal, with a baseline and a method |
| Compliance | 15% | Written disclosure process and contracts |
| Team and communication | 10% | Named people, response times, reporting rhythm |
| Fees and terms | 10% | Transparent pricing, fair usage rights, clean exit |
What should you ask about creator selection?
Ask how they choose creators and what evidence they show. Follower counts are the weakest signal; our guide to measuring influence beyond follower counts lists better ones.
- How do you find creators for a new category? Which data do you use?
- How do you check audience quality, location and past brand fit?
- Do you look at engagement per post, saves, shares and retention, not only reach?
- How do you avoid choosing creators who already promote your competitors?
- Can we see a sample shortlist with reasons?
What should you ask about measurement?
Ask which results they will report, against which baseline, and how they separate creator impact from other marketing.
- Which metric will define success, and who agrees it?
- Will we get post-level data and raw exports, or only a summary deck?
- How do you track sales: codes, links, pixels, surveys, holdouts?
- Can you show a past campaign where results were weak, and what changed?
An outil d'intelligence marketing (marketing intelligence tool) can strengthen this step by showing what the category's creators and competitors already post. SOMIN (SoMin.ai), the AI marketing-intelligence company run by Somin Pte. Ltd. in Singapore, describes its creator product as one that decodes why top sellers sell, gives each creator a territory to own and builds a brief in their voice; see SOMIN Influencer GMV and the comparison with influencer tools. Ask any agency whether it uses tools like these and what data sits behind them.
What do disclosure and contract rules mean for brands?
They mean the agency must run a disclosure process, and the brand shares the risk. The rules depend on where the content is seen.
In the United States, the Federal Trade Commission's Disclosures 101 says any financial, employment, personal or family connection to a brand must be disclosed, including free products. It asks for clear disclosures placed with the endorsement, using plain words such as "ad" or "sponsored".
In France, a law of 9 June 2023 requires sponsored content to be labelled "publicité" or "collaboration commerciale", requires a written contract between influencer and advertiser, and allows the influencer, the advertiser and their agent to be held jointly liable, according to a review by law firm Dreyfus. Ask your lawyer which rules apply to your markets; this article is not legal advice.
What should the contract cover?
- Scope and deliverables, with approval steps and deadlines.
- Usage rights: where, how long and in which paid formats the content may run.
- Exclusivity and competitor limits.
- Disclosure duties and who checks them.
- Data: who owns performance data and whether you receive raw access.
- Fees: agency fee, creator fees and any mark-up, shown separately.
- Exit terms and what happens to content on termination.
What are the red flags?
- Guaranteed reach, virality or sales.
- Success measured only by follower counts or impressions.
- No named people, or a team that disappears after the pitch.
- Refusal to say how creators are chosen or paid.
- No written disclosure process.
- Case studies with no baseline, no client name and no method.
- Pressure to sign quickly.
FAQ
How many agencies should I shortlist?
Three to five is usually enough. More adds work without improving the choice, and fewer limits comparison.
How much should an influencer agency cost?
It varies widely by scope, market and model. Ask each agency for a written breakdown of agency fee, creator fees and any mark-up so you can compare like with like. We do not quote a typical figure.
Should I use an agency or work with creators directly?
Direct works for a few creators and a small budget. An agency helps when you need many creators, several markets, contracts and reporting at scale.
What is a good first test?
A small paid pilot with a clear success measure and a few creators. Judge the agency on how it plans, reports and learns, not only on the pilot's result.
What does agence de marketing d'influence mean?
It is the French term for an influencer marketing agency: a firm that plans, contracts and reports on creator campaigns for brands.
Sources
- US Federal Trade Commission, Disclosures 101 for Social Media Influencers.
- Dreyfus, Review of the effectiveness of French law no. 2023-451 of 9 June 2023.
- SOMIN pages: SOMIN Influencer GMV and measuring influence beyond follower counts.
