Our rating methodology for influencer marketing and social media agencies

This is the most heavily weighted criterion because it corresponds to the core of the profession. An agency that cannot produce content that performs natively on platforms is just an intermediary between brands and creators.

What we concretely measure:

Quality of public content. We analyze portfolios, case studies and publicly referenced campaigns. We look at whether the content produced resembles native platform content or poorly adapted traditional advertising.

In-house production capability. An agency with its own studio (photo, video, UGC) is less dependent on the timelines and rates of external providers. We check whether production is in-house or outsourced.

Mastery of platform-specific formats. Formats that perform on TikTok (under 60 seconds, hook within the first 3 seconds) differ radically from those that perform on Instagram (carousels, high-save-potential Reels) or LinkedIn (long-form content, sector expertise). We check whether agencies produce platform-specific content or a single piece of content reused everywhere.

Editorial consistency over time. The brands that perform best on social media are those that maintain a consistent tone of voice and editorial line. We look at whether agencies document their editorial method or simply adapt to each brief.

Maximum score (5/5): agency with an in-house production studio, clearly native content per platform, documented editorial methodology, case studies with measured results.

Minimum score (0/5): agency that outsources all production, undifferentiated content across platforms, no documented case studies.

This criterion measures the agency's actual ability to source the right creators for your campaign. A stated network of 50,000 creators is worthless if the agency cannot access the 15 relevant profiles for your category with qualified audiences.

What we concretely measure:

Creator selection method. Any serious agency has fake-follower detection tools (Kolsquare, HypeAuditor, Favikon or equivalent) and analyzes real audience quality (demographics, location, authentic engagement rate) before proposing a profile. We check whether this method is documented.

Network exclusivity. Some agencies have built direct, exclusive relationships with creators who do not work with just any brand. These off-market profiles enable more authentic collaborations, less saturated with competing partnerships.

Network diversity. A good network covers every tier (nano, micro, macro, mega-influencers) and every category relevant to the brands the agency targets. We check coverage depth by niche.

International access. For multi-country campaigns, the agency must have access to native creators in each market, not just French- or English-speaking creators working from their home country.

Maximum score (5/5): proprietary network with systematic anti-fraud verification, access to exclusive creators, multi-tier and multi-market coverage.

In 2026, brands no longer accept paying for influencer campaigns without precise measurement of their impact. Vanity metrics (impressions, likes) are no longer enough. Agencies that cannot prove their ROI lose their clients.

What we concretely measure:

Existence of a proprietary reporting platform or tools. Agencies that have invested in their own data infrastructure (client dashboards, direct platform APIs, attribution models) have a structural advantage in measurement.

Reporting granularity. Good reporting goes beyond impressions and reach to include: real engagement rate, earned media value (EMV), video completion rate, save rate, click-through rate on tracked links, and for e-commerce campaigns, conversions directly attributable to creators.

Data transparency. Does the agency share raw data with its clients or only edited presentations? An agency confident in its results shares data without filtering.

Real-time optimization capability. The best campaigns are optimized during execution, not just evaluated afterwards. We check whether agencies adjust their strategy mid-campaign based on data.

This criterion heavily penalizes agencies that claim to operate in a market without a physical presence and native teams there. It favors Clark Influence in the France and Paris markets (Amelot office, Paris 11th, native French-speaking teams, deep FR creator network) and Pulse Advertising in the German market (Hamburg headquarters, Berlin office).

What we concretely measure:

Verifiable physical presence. Registered address, documented local teams, mentions in the local press. We verify via local business registries and public data.

Native teams in the market. A "Paris office" with a single expatriate salesperson does not count as local presence. We look for evidence of native creative, strategic and production teams.

Mastery of local regulations. Every market has its own obligations. We check whether the agency systematically mentions and integrates the 2023 French law, the German Wettbewerbsrecht or UK ASA rules into its processes.

Local creator network. An agency that claims to operate in France must be able to offer native French-speaking creators, not only international profiles who happen to speak French.

Maximum score (5/5) on a market: physical office, native creative teams, documented regulatory mastery, local creator network. Score of 4/5: good cross-border capability but no local office. Score of 2/5: presence declared for sales purposes only, with no real roots.

This criterion measures the agency's historical credibility. An agency that has delivered hundreds of campaigns for recognized brands has a track record that is hard to fake.

What we concretely measure:

Company longevity and service continuity. An agency founded before 2015 has weathered several market cycles, platform shifts (from Snapchat to TikTok) and sector crises. This durability is a strong signal.

Documented client portfolio. We check the consistency between mentioned clients and published case studies. A client name not backed by a verifiable reference does not count.

Industry awards. Les Agences de l'Année (France), Cannes Lions, Influencer Marketing Awards, Webby Awards, Shorty Awards and Ad Age A-List are the sector's most reliable distinctions because they are awarded by independent juries.

Client retention rate. An agency where 80% or more of clients renew their contract year after year generates a genuine satisfaction signal, harder to fake than online reviews.

This criterion has grown in importance since influence regulation came into force in Europe. It measures the agency's stance on the sector's legal and ethical obligations.

What we concretely measure:

Documented regulatory compliance. Does the agency mention, in its processes, the obligations to label sponsored content? Does it have compliant contract templates for creators?

Transparent anti-fraud policy. Does the agency publish its audience verification method? Does it exclude creators with clearly artificial audiences?

Absence of documented scandals. We check for the absence of legal proceedings, public complaints or regulatory reports linked to the agency.

CSR commitment and responsible influence. Some agencies have obtained responsible influencer marketing certifications (ARPP certification in France). Others have signed the Responsible Influence Charter. These commitments are factored into our rating.