Influencer marketing
Influencer Marketing
What is influencer marketing?
- Borrowing the trust of influential people
- In B2B, industry expertise matters more than followers
- Authenticity and transparency are the conditions for trust
Adopting influencer marketing shifts the center of gravity of your budget from media to people. Instead of buying 10,000 banner impressions, you borrow the judgment of someone who has already earned credibility in the field. B2B buyers read a one-line review from an industry peer before a vendor's proposal, and that one line decides whether you make the shortlist. What this marketing changes is not reach but whether you get onto the shortlist at all.
There are three main types: paid collaborations that pay a writing or appearance fee, ambassadors who maintain a relationship over a set period, and employee advocacy, where your own employees speak up directly. In B2B, a micro-influencer with just 3,000–5,000 followers, half of whom are actual decision-makers, often outperforms a major account with 100,000 followers. The conditions are clear too: if you paid, you must include the 'Includes paid advertising' label. It should also be distinguished from thought leadership. Thought leadership builds assets you own, while influencer marketing is borrowing someone else's trust for a fixed term, so when the contract ends, that trust goes back with it.
The most common point of failure in practice is how teams choose people. Follower count is the least reliable metric in B2B, yet teams pick an account with 300,000 reach because the number looks big in a report. If only 200 of those 300,000 can actually approve a training purchase, you get an impressive view-count report and an empty inbox. Even riskier is handing an endorsement to an expert who has never used your product. The industry is small, and word that 'that person probably never used it' travels within half a day. If you pay for endorsements and omit the disclosure, you face penalties, and both the borrowed trust and your own reputation collapse together.
John KimInstructor John Kim, author of "B2B Marketing Design" and CEO of Nanum Consulting
Jongsung EunExpert in AI, marketing, business models, and management strategyBuilding on word-of-mouth marketing, the spread of social media amplified individual influence and established this as a marketing field in its own right.
Let's look at a hypothetical case. Company A, a B2B leadership training firm with 28 employees and annual revenue of around KRW 4 (≈ US$1) billion, got 80% of its new inquiries from referrals by existing clients. To win new clients, it spent KRW 30 million (≈ US$22,400) on LinkedIn ads over six months, but ended up with 11 qualified leads and 0 contracts. The CEO changed course: 'We don't need to buy more ads. We need someone to tell our story for us.'
- Kim, a manager who handled marketing on the side, passed over accounts with around 30,000 followers. Instead, the shortlist had two current HRD team leads with just 4,200 followers, but half of their subscribers were HR practitioners at large corporations.
- At the first meeting, a team lead said, 'I can’t write a promo post for your training materials. But I’d happily write about how I botched a leadership training program,' so Company A redesigned the plan as a 6-part co-authored series with no product mentions.
- The contract ran three months at KRW 600,000 (≈ US$450) per post, KRW 7.2 million (≈ US$5,390) in total for the two of them, with 'Includes paid advertising' tagged on every post. The CEO objected twice: 'You're spending this on posts that don't even mention our name?'
- After the third post drew a comment asking 'Where did you take this training?', a team lead mentioned Company A in the comments, and that day alone the website inquiry form received 6 submissions.
- Three months later there were 47 qualified leads, and the cost per lead had dropped from KRW 2.73 million (≈ US$2,040) in the ad days to KRW 150,000 (≈ US$110). Of 9 requests for proposal, 4 turned into contracts, worth KRW 180 million (≈ US$134,700) in orders.