Niusleters

The marketplace I built to connect Spanish brands with newsletter creators
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Overview

As a product maker, I identified a massive gap in the Spanish-speaking market where brands and newsletter creators couldn’t find each other effectively. They were stuck with messy email threads, scattered spreadsheets, and manual invoicing processes that killed potential partnerships. I built Niusleters with Laura Folgado as a SaaS product to solve this problem, creating the first marketplace specifically designed for Spanish speakers to discover, negotiate, and close newsletter sponsorships seamlessly. The platform automates everything from matching to payments, turning what used to take weeks into a process that happens in minutes.

Timeline:
6 months
Role:
Co-Founder · Product lead · Sales & growth strategist
Categories:
Marketing
Built with:
Bubble · Figma
  • Designed separate onboarding flows for brands and creators, capturing collaboration preferences and audience data. This smart data collection ensures quality matches from the first interaction.
  • Built an intelligent filtering system that lets brands find newsletters by niche, audience size, and budget in seconds. The algorithm learns from successful partnerships to surface better matches over time, making discovery effortless and highly targeted for both sides.
  • Created an end-to-end workflow that handles proposals, negotiations, contracts, and payments automatically. Users can close sponsorship deals without leaving the platform, eliminating the traditional chaos of email threads and manual payment chasing that kills so many potential collaborations.

Impact & Results

  • Successfully attracted 120+ active newsletter creators (averaging 2k subscribers each) and multiple brands
  • Facilitated successful sponsorship deals that generated over €1k in new revenue for creators while proving newsletter advertising delivers better ROI than social media for participating brands
  • Demonstrated that newsletter sponsorships outperform traditional social media advertising in engagement and cost-efficiency, establishing a new revenue stream for Spanish-speaking content creators and opening an untapped market for brands

Ready to connect with Spanish newsletter creators or brands?

Join Niusleters today and start building profitable partnerships in minutes, not months.
Register for free