How Limelight validated the B2B creator market by interviewing 100+ creators before building | David Walsh

Limelight is building the infrastructure layer for B2B creator marketing, processing payments and managing campaigns for companies spending six figures monthly on creator partnerships. With $2.1 million in funding from Signal to Noise Ratio, Ascend Ventures, Savion Ventures, and strategic angels including the head of AI at Amazon and the former Chief Product Officer at Lyft, Limelight powers creator programs for Clay, Webflow, ZoomInfo, and Bill.com. In this episode of BUILDERS, we sat down with David Walsh, Founder and CEO of Limelight, to learn how he validated the market by interviewing 100+ creators, why he deliberately chose not to build an agency despite customer demand, and how his platform tracks engagement data at scale to prove ROI for performance-focused buyers.

Topics Discussed:

• The pivot from referral software to B2B creator infrastructure after 100+ creator interviews
• How creator attitudes shifted from refusing brand partnerships to actively monetizing
• Clay's playbook: building custom Clay tables for creators before asking them to post
• Why Limelight chose to power agencies rather than compete with them
• The data infrastructure required to justify $100K+ monthly creator budgets
• Tracking organic engagement, converting content to paid ads, and attributing pipeline
• The split between brand/social buyers and performance/demand gen buyers
• Launching social listening to challenge legacy social media management platforms

GTM Lessons For B2B Founders:

• Validate with 100+ user interviews before pivoting: David didn't just chat with a handful of potential users—he conducted and recorded over 100 interviews with B2B creators, asking detailed questions about monetization interest, partnership preferences, and content strategies. He then repeated this process with marketing leaders. This level of research rigor before committing to a pivot is rare but critical when entering emerging categories. The depth of qualitative research gave him conviction to make a contrarian bet when most creators were still refusing brand partnerships.
• Build where network effects are structural, not hoped for: David specifically chose a creator marketplace after a previous marketplace failure because the unit economics included built-in virality. When Limelight pays a creator $10,000, that creator has tens of thousands of followers who see the transaction result (the sponsored content). Every payment notification becomes inbound interest. He understood that in consumer marketplaces you compete on supply quality, but in creator marketplaces the supply actively markets your platform. Founders should identify whether their marketplace has structural network effects in the transaction itself, not just theoretical ones.
• Target micro-creators with niche audiences over vanity metrics: The counterintuitive insight: creators with 10,000-25,000 followers often outperform those with 100,000+ in B2B because deal sizes are $25K-$50K, not $100 sunglasses. Smaller creators have higher engagement rates, unsaturated audiences, authentic expertise in specific domains, and haven't been "bought and sold for" yet. When brands face the choice between a 100K-follower creator at $2,000 per post with 200 likes versus a 25K-follower creator at $1,000 per post with 300 likes, they irrationally choose the larger following. Founders should educate buyers that in B2B, targeted influence within specific buyer committees matters more than reach.
• Build data infrastructure to win performance buyers, not just brand buyers: Limelight tracks every piece of content in real-time (not waiting weeks for creator screenshots), monitors all engagement and segments it by ICP fit, provides self-reported attribution from demo forms, tracks website traffic spikes correlated to posting schedules, and generates qualified lead lists from content engagement. This comprehensive data layer is what allows demand gen leaders to reallocate spend from paid channels. The market is splitting 50/50 between brand/social buyers and performance/demand gen buyers—the latter has larger budgets and treats creator spend like paid media that requires attribution. Founders entering new marketing channels should build attribution infrastructure from day one, not as an afterthought.
• Deliberately choose infrastructure over services even when customers ask for help: Despite customers like Webflow, ZoomInfo, and Bill.com spending $100K+ monthly and requesting more hands-on support, David chose to build product and enable agencies rather than hire account managers and become a service business. His reasoning: people have tried to replace agencies in recruiting for decades and failed because buyers want the human in the middle. The bigger opportunity is being the infrastructure that powers all agencies, not competing with them. This fork-in-the-road decision—hire CSMs and influencer marketing managers versus build more product—defines whether you're building a scalable platform or a services business disguised as SaaS.
• Use your first customer to custom-build product, then scale it: Clay became Limelight's first customer when the platform was early. David essentially custom-built features for Clay's creator program, learning their workflow for building Clay tables for creators, their onboarding process, and their approach to creative freedom. This deep partnership gave Limelight the product foundation to scale from managing 20 creators to 200+ for Clay within nine months, then apply those learnings to other customers. Rather than building in a vacuum, founders should find a sophisticated first customer willing to co-develop the product, even if it means initially building something custom.

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