Two-sided marketplaces, directory platforms, and verified-user apps are the hardest things to build on the web — trust, matching, and SEO at scale all at once. We don’t just talk about it. We built and operate Crashmates, a verified-student platform live across 3,900+ campuses.
Most agencies pitching “platform development” have built landing pages, not marketplaces. We built and operate Crashmates — a roommate-matching platform that verifies every user by .edu email and runs across 3,900+ campuses nationwide. Two-sided liquidity, trust and verification, programmatic SEO across thousands of pages: we’ve solved these in production, not on a whiteboard.
A verified-student roommate marketplace — “no randos.” Real college students with real .edu emails, free to browse, no subscription traps, live across 3,900+ campuses. Built end to end: verification, matching, programmatic campus pages, and the SEO architecture to rank across every school.
Supply and demand sides designed to reach liquidity, not stall.
Real-user gating and moderation so the marketplace stays clean.
Thousands of city/category/listing pages that actually rank.
Technical SEO tuned for scale and long-tail capture.
Core Web Vitals discipline and 10+ schema blocks per page.
Based in Temecula, building marketplaces and platforms for clients nationwide. Explore every industry we serve, or see how we approach SEO, AI visibility, and answer-engine optimization — the same systems that make a platform findable at scale.
Yes — and we’ve shipped one at scale. A marketplace is a different animal from a brochure site: you’re balancing two user types, trust and verification, search and matching, and SEO across thousands of programmatic pages. We built Crashmates end to end, so this is production experience, not theory.
Scale and structure. A marketplace lives or dies on programmatic pages — one per city, category, or listing — each needing unique content, clean schema, and internal linking that doesn’t collapse under thousands of URLs. Crashmates runs across 3,900+ campuses; that’s the same programmatic architecture we bring to your platform so you rank for the long tail, not just the homepage.
Trust is the product in a marketplace. Crashmates only admits real college students with verified .edu emails — no bots, no randos. We design verification, moderation, and trust signals into the platform from the start, because a marketplace people don’t trust never reaches liquidity.
That’s what our GEO and AEO work is for. We structure your platform’s content and schema so ChatGPT, Perplexity, and Google’s AI Overviews surface and cite it when users ask for a marketplace or directory in your space.
Platforms sit in our Scale tier because of the architecture involved, though a focused directory MVP can start smaller. Every engagement begins with a fixed, written quote after a free scope call — see pricing.
This form goes directly to our team. No sales reps, no runaround. We respond within 24 hours with scope, timeline, and honest pricing.