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Why Should You Hire An Influencer Marketing Agency?
Beauty
06.02.25

Why Should You Hire An Influencer Marketing Agency?

Influencer marketing has quickly become a powerhouse for brand growth, driving awareness, engagement, and conversions like never before. Most brands know they need to invest, but, when it comes to executing an influencer marketing strategy, brands often face a crucial decision: should they manage campaigns in-house or partner with an influencer marketing agency? 

Keeping everything in-house feels more cost effective, but is that really the case?  

Mischa Joslin, Managing Director of our dedicated influencer marketing agency, summer. expands on why bringing on an agency could be the best investment a brand can make…

CREDIT: @DIGIBEAUTY

1. SMARTER SELECTION 

Finding the right influencer for your brand isn’t as simple as scrolling through Instagram. Agencies have access to advanced analytics tools that dig into audience demographics, engagement rates, and even fake follower detection to help them shape their creator casting lists. At summer., we blend hard data with cultural fit to make sure that the creators you work with not only align to your brand values but deliver the results you seek.

Whether that’s sky-high views, community galvanising engagement or clear sales conversion, we have the tools to provide that detail before you contact a creator. These insights are vital when it comes to helping ensure you work with authentic influencers who actually connect with your target audience—something that’s nearly impossible to do manually.

2. TRIED, TESTED AND PROVEN  

A strong influencer marketing strategy isn’t built on guesswork—it’s built on experience. Long standing agencies have managed hundreds of campaigns across different industries, platforms, and content formats. As a result, we know what kind of collaborations and content drive results, whether it’s long-term partnerships, viral TikTok trends, or ambassador programmes. This expertise helps us fine-tune your strategy, avoiding common pitfalls and maximising impact. Essentially, less time and money wasted testing and learning!

3. INSIDER INSIGHT  

Social media is ever evolving, and agencies are often first to know about changes in algorithms, new features, and emerging trends. At summer., we have close ties to the platforms themselves – whether that’s Instagram, TikTok, YouTube or beyond, meaning we get insider knowledge that brands don’t always have access to. In short, our insights help you stay ahead of the competition.

CREDIT: @TRINJAKET

4. AN EXTENSION OF YOUR TEAM  

Let’s be real; influencer marketing is a full-time job. Researching creators, negotiating contracts, managing content approvals, tracking performance—it’s a HUGE time suck. For already stretched marketing teams, running an influencer campaign in-house can lead to burnout, inefficiencies, and missed opportunities. An agency takes the workload off your plate, letting your team focus on bigger-picture marketing goals. 

5. RAMPED UP REPORTING   

Measuring the success of an influencer campaign goes beyond just likes and shares. At summer., we use data-driven insights to track KPIs like engagement rates, conversions, and long-term brand impact. Agencies optimise campaigns in real time, ensuring you’re getting the best possible return on investment (ROI) and learning from every campaign as you go.  

Whilst managing influencer marketing in-house might seem like a way to keep costs down, the reality is that it often leads to more spending with weaker results. Working with an influencer marketing agency gives brands access to better tools, expert insights, and strategic execution—all while freeing up time for your team. 

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Want to take your influencer marketing to the next level? Drop us an email at hello@thisissummer.co and let us handle the heavy lifting, so you can focus on growing your brand the right way.

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