Influencer Marketing Agency: What to Ask Before You Sign a Retainer

Influencer marketing pitches tend to sound similar: reach numbers, engagement rates, a portfolio of past campaigns. The questions that actually separate a genuinely capable agency from one reselling the same well-known creator list as everyone else are less often asked.

Ask how they vet engagement, not just report it

Follower counts and even engagement rates can be inflated through bots and engagement pods, and an agency that has not built a process to check for this, beyond glancing at a public engagement percentage, is passing that risk directly to you. Ask specifically what they check before recommending a creator, not just what metrics they report afterwards.

Ask who owns the creative brief

Campaigns that read as an obvious advertisement consistently underperform ones that let the creator’s own voice carry the message. An agency that hands creators a rigid script, rather than a clear brief with room for the creator’s own style, is usually optimising for control at the expense of results.

Ask how they measure beyond vanity metrics

Reach and impressions are the easiest numbers to report and the least connected to revenue. A capable agency will push, from the start, towards trackable outcomes such as unique discount codes, dedicated landing pages or affiliate links, even knowing that influencer campaigns are harder to attribute cleanly than paid search.

What a good influencer marketing agency retainer looks like

A well-run influencer marketing agency retainer includes a clear brief process, agreed reporting before the campaign starts, and a named point of contact who has actually vetted the creators being proposed, not just licensed access to a database of them. If an influencer marketing agency cannot describe that process clearly in a first conversation, it is worth asking why before you sign anything. Our content and social media team runs influencer work to trackable outcomes wherever the campaign format allows it.