Marketplace

InternSea

Internsea is an online marketplace simplifying internship placements, making them as easy to book as Airbnb stays.

Case study

Problem

InternSea is a marketplace with high coordination overhead: candidates, hosts, timelines, and placement logistics all need to work smoothly to create trust.

Internship marketplaces fail when coordination breaks: unclear steps, slow follow-up, and manual tracking create drop-off on both sides of the market.

Solution

Horizon Labs focused on shipping the essential “marketplace loop,” including:

Candidate and host onboarding flows
Listings and discovery that reduce friction to apply/book
Placement management workflows to keep both sides aligned
Operational tooling to avoid everything living in spreadsheets

Outcome

Working marketplace MVP that supported real placements
Reduced coordination burden on the founding team
Clear foundation for iteration as the market validated

Features & Tech Stack

Horizon Labs built the core marketplace product experience for InternSea, delivering the workflows needed to list opportunities, match candidates, and manage placements so the team could validate the model and grow supply/demand.

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