Domitille de Saint-Exupéry · Lemlist Influencer Marketing

How Lemlist Spent $60K on B2B Micro-Influencers

I used to think influencer marketing was mostly a B2C game. Big names, massive follower counts, flashy campaigns. But then I heard how Lemlist spent $60,000 to pioneer influencer marketing in B2B by focusing on micro-influencers. Not the celebrities with millions of followers, but the niche creators with about 10,000 followers who actually have engaged audiences. It felt like a different approach—more manual and less shiny, but way smarter. That stuck with me because it’s exactly the kind of tactic that scales thoughtfully in the B2B world. If you’re wrestling with influencer marketing and wondering how to get ROI without wasting budget chasing vanity metrics, this one’s for you.
1. Start with your own network for influencer discovery. Lemlist began by manually identifying influencers from their existing partners and clients. This wasn’t just convenient; it ensured relevance and trust from the jump. When you tap into your own ecosystem, you find people who already resonate with your brand’s niche and values. The takeaway is simple: don’t rely solely on influencer databases—they often miss the mark. Start local, start known. 2. Train algorithms to find lookalike influencers. Lemlist used LinkedIn’s content feed to find influencers similar to their initial network. By engaging with content from their known influencers, the algorithm started pushing more creators with similar styles and audiences. Lemlist also ran outreach campaigns targeting creators followed by their existing influencers. This method efficiently expanded their influencer pool without blindly chasing big follower counts. If you want to scale this, focus on algorithmic discovery paired with human curation. 3. Prioritize micro-influencers with engagement, not just followers. The sweet spot for Lemlist was influencers with around 10,000 followers who consistently produced content with a clear point of view. More importantly, these creators sparked qualitative conversations in the comments. It’s not about the size of the audience but how engaged and relevant it is. Lemlist’s Domi put it bluntly: “Most of our influencers have, like, around ten k followers. At the maximum, we are working with some big ones that have, like, hundred, you know, but, like, underdog sales or content these the new sales and and so on.” The takeaway here is to look past vanity metrics and dig into audience quality. 4. Work with influencers motivated to grow alongside your brand. Micro-influencers are hungry—they want to build their own brands too. Lemlist found that these creators were more authentic partners because their success was tied to yours. This mutual motivation makes the campaigns feel less transactional and more collaborative. If you’re investing budget, find influencers who are genuinely invested in your brand story and want to grow with you. It changes the dynamic from sponsor to teammate. "Influencers, we wanted to test it out because, we thought first that we always say, At Lemlist wanna have a marketing that's not, like, boring to boring... Most of our influencers have, like, a run ten k followers. At the maximum, we are working with some big ones that have, like, hundred, you know, but, like, underdog sales or content these the new sales and and so on... Basically, we did it... I think it was pretty manual, but we would start with, or own network, and that means like partners clients, clients are a good sweet spot to start with... And then, you know, like you just train the algorithm to basically surpass lookalike influencers because, like, you interact more with those con... With their content, and so then linkedin would just push more content lookalike, also another platforms... And also, we were running outreach campaigns, targeting the creators that are existing influencers would follow themselves."
Influencer marketing in B2B doesn’t have to be a shot in the dark. Starting small with the right micro-influencers can build trust and momentum that big numbers alone won’t buy. Keep your eyes on the engaged audience, not just the follower count. That’s how you make influence actually work. Dave

P.S. Who in your existing network could be a micro-influencer for your brand if you gave them a nudge?

"Influencers, we wanted to to test it out because, we thought first that we always say, At Lemlist wanna have a marketing that's not, like, boring to boring... Most of our influencers have, like, a run ten k followers. At the maximum, we are working with some big ones that have, like, hundred, you know, but, like, underdog sales or content these the new sales and and so on... Basically, we did it... I think it was pretty manual, but we would start with, or own network, and that means like partners clients, clients are a good sweet spot to start with... And then, you know, like you just train the algorithm to basically surpass lookalike influencers because, like, you interact more with those con... With their content, and so then linkedin would just push more content lookalike, also another platforms... And also, we were running outreach campaigns, targeting the creators that are existing influencers would follow themselves."

— Domitille de Saint-Exupéry, Lemlist

How to run it

  1. 1 Start identifying influencers manually using your own network including partners and clients.
  2. 2 Train algorithms on platforms like LinkedIn to find lookalike influencers by interacting with their content.
  3. 3 Run outreach campaigns targeting creators that existing influencers follow.
  4. 4 Select micro-influencers with around 10k followers who have consistent content, a clear point of view, and qualitative comments that spark discussions.
  5. 5 Work with influencers who are motivated to grow alongside your brand.

Why it worked

  • Because people trust recommendations from someone they know or trust rather than traditional sources of information.
  • Micro-influencers have a high motivation to grow with the brand, making the partnership more authentic and effective.
  • Manual identification ensured influencers had consistent content, a clear niche, and engaged audiences rather than just follower counts.

Play details

Objective
Brand Awareness and Demand Generation
Cost
Sixty thousand dollars
Replicability
4/5

Constraints

Requires manual effort to identify relevant micro-influencers and build relationships; existing influencer databases were found to be inadequate.