The recommended number of influencers that a brand should partner with for a single campaign varies based on several factors. These include campaign goals, budget, and the type of audience the brand aims to reach.

1. Campaign Goals: If your aim is to create brand awareness, partnering with a higher number of influencers can help reach a broader audience. Conversely, for campaigns targeting high engagement or conversion rates, it may be better to work with fewer influencers with high engagement and conversion ratios.

2. Budget: Obviously, a brand’s budget will determine how many influencers it can afford to collaborate with. Smaller brands or startups might only be able to afford micro-influencers, while large brands might partner with celebrity influencers.

3. Target Audience: Depending on the demographic and psychographic profile of the target audience, brands may choose to partner with diverse influencers to cover different segments of the target audience, or a few influencers who deeply resonate with a focused audience segment.

Influencer marketing platforms like Flinque or others can help brands analyze these factors and make an informed decision when selecting influencers.

Using Flinque, for example, brands can discover and evaluate influencers based on metrics like reach, relevancy, resonance, and return (also known as the 4 Rs of influencer marketing). Such tools can be instrumental in helping brands identify the right influencers that align well with their campaign objectives and audience.

Nevertheless, suitability depends on the specific campaign and business objectives. It’s essential that brands conduct their due diligence and continuously monitor the performance of their influencer campaigns to manage partnerships effectively.

Ultimately, there is no one-size-fits-all approach to deciding the number of influencers a brand should partner with for a campaign. It must be based on a brand’s unique marketing goals, target audience, and the campaign’s overall scope.