Joona Haatainen
11/2/2026

Comprehensive guide to influencer marketing: What is it and how does it work?

Influencer marketing is marketing in which a company collaborates with social media influencers to reach their target audience authentically and credibly. It is storytelling in which the brand becomes part of the relationship between the influencer and the follower. The effectiveness of influencer marketing is based above all on the trust relationship between the influencer and their audience.

Why do influencer marketing?

People are proven to trust an influencer's recommendation more than a brand's own message. Through influencer marketing, it is possible to reach audiences cost-effectively in various fields of interest, such as fashion, technology, sports, gaming, or more broadly youth culture.

The role of influencer marketing is particularly emphasized in the target group under 44 years old, as they do not follow traditional media channels in the same way as before. In Finland, a single influencer can reach hundreds of thousands of people, but we also have plenty of specialized niche content creators.

Through influencers, a brand gets:

  • Content that appeals to the target audience.
  • Access to the influencer's own media and wide reach.
  • Leveraged influencer credibility and personal brand.

Who are influencers?

An influencer is a person who has the ability to influence their followers' opinions, attitudes, or purchasing decisions. Depending on their profile, they can also offer their viewers purely entertaining content. An influencer can also be an artist, athlete, or other public figure – in recent years, the line between traditional celebrities and social media influencers has become blurred.

What is central to the definition of an influencer is not just the number of followers, but that famous influence. A person can be a significant opinion leader in a particular niche subject area, even if their followers are not huge.

Influencers are roughly divided into three categories:
  1. Micro-influencers: Often a very committed, close circle or hobby group around a particular topic. Typically 5,000 – 20,000 followers.
  2. Mid-tier influencers: Often reach a fairly large audience. This category often includes YouTubers, bloggers, or TikTokers. They have 20,000 – 100,000 followers.
  3. Celebrities and major influencers: Finland's leading names, artists, or athletes. They are already featured in traditional media and have influence across multiple channels. Over 100,000 followers on social media.

What does influencer marketing require?

Effective influencer marketing requires a goal-oriented strategy, successful influencer mapping, creative concept development, resources for managing collaboration, and the ability to analyze results.

The work phases of influencer marketing include: 

1. Influencer strategy

Before implementation, objectives must be defined. Do you want to increase brand awareness in a challenging target group or aim for direct sales results? At the same time, the target audience is defined precisely.

2. Creative concept development and briefing

To ensure that actions are consistent, a creative brief is created for influencers. It provides a framework, but leaves room for the influencer's own creativity. A good brief ensures that the collaboration doesn't feel forced, but genuinely appeals to the target audience.

3. Influencer mapping

The goal is to find the best faces for the brand. The mapping process includes creating influencer lists, contacting influencers, and negotiations. A good tool for finding influencers is technology focused on influencer marketing.

What is important to consider in influencer mapping? 

Quantitative analysis (Data):

  • Channels and reach: Where does the influencer operate (Instagram, TikTok, YouTube, etc.)?
  • Engagement Rate: Does the audience react to the content?
  • Audience demographics: Age, gender, and location.
  • Quality of followers: Ensure that there are no purchased bots included.
Qualitative analysis (Style and feel):
  • Content quality: Do the visuals and production values fit the brand's appearance?
  • Tone of Voice: Is the influencer knowledgeable, humorous, or opinionated?
  • Values and reputation: What does the influencer represent? Are there risks in the history for the brand?
  • Previous collaborations: Has the influencer recently collaborated with competitors?
4. Campaign management

Management is the most labor-intensive phase of the process, requiring its own resources and above all project management skills:

  • Contract negotiations: Fees, rights of use (e.g., advertising use on Meta channels), and exclusivity.
  • Legal matters: Ensure advertising disclosures in accordance with consumer protection law.
  • Content monitoring: Review of drafts (facts, links, brand visibility) before publication.
  • Community management: Monitoring comment sections and possible interaction.

5. Reporting and analysis

Finally, analyze how the campaign performed against objectives:

  • Reach: How many people saw the content?
  • Engagement: What kind of discussion was generated and how long did people spend with the content?
  • Conversions: Clicks, sales, or other measurable actions.
  • ROI & Learnings: Was the investment worthwhile and what can we learn for next time?

How to get the most out of influencer marketing?

The best results come from multi-channel approaches. By leveraging the influencer's content or personal brand in the brand's own paid advertising, maximum attention value is ensured. An influencer as the brand's advertising face improves advertising effectiveness and creates credibility, offering the brand access to a particular cultural context – such as the rap scene or gaming communities.

Looking for an influencer marketing partner? Contact our team.