Marketplace Modernization
Already running a marketplace — on Sharetribe, Arcadier, or something custom — and hitting its limits? We extend, customize, and modernize existing platforms instead of starting over.
Not every marketplace problem needs a rebuild. Sometimes the platform you launched on has served its purpose and is now the thing holding you back — a plugin the vendor won't build, an integration that doesn't exist, performance that degraded as listings grew. This is where we work on marketplaces that already have real transaction volume: extending what's there, replatforming what's not working, and fixing what's slow, without putting the business on pause to do it.
What We Do
Key capabilities.
Platform Replatforming & Migration
Moving from one marketplace platform to another — or from a no-code tool to a custom build — without losing listings, transaction history, or SEO rankings on your existing URLs. This is usually the highest-risk part of a marketplace's life, and the part most teams underestimate.
Custom Plugin & Extension Development
When your platform vendor's roadmap doesn't include the feature your business actually needs, we build it as a custom extension rather than waiting or working around it manually.
Payment & Third-Party Integrations
Adding payment processors, tax handling, accounting software, CRM, or marketing tools to a platform that wasn't originally built with your current stack in mind.
Performance & Scalability
Marketplaces that were fast at 100 listings often aren't at 10,000. We profile search, filtering, and page load, then fix the specific bottlenecks so the platform holds up as listings and traffic keep growing — not a generic “optimization pass” with no measurable target.
Payments & Workflow Improvements
Updating how money moves — new payment methods, better payout timing, refund and dispute handling — or fixing operational workflows like approvals, notifications, and vendor onboarding that were fine at launch and aren’t anymore.
When You Need This
Signs it's time.
You've outgrown what your no-code or templated marketplace platform can do
You need a feature your platform vendor has no plans to build
You're migrating between platforms and can't afford downtime or lost listings
Search, filtering, or page load has gotten noticeably slower as you've grown
ACE's Approach
Before proposing anything, we audit what's actually there — the platform, the data, the integrations — because modernization work done without understanding the existing system is how migrations go wrong. From there we sequence changes so the marketplace keeps running and generating revenue throughout, rather than freezing feature development for months.
Why ACE
Why ACE for Marketplace Modernization
We work with both custom-built and SaaS-based marketplace platforms, including Sharetribe and Arcadier, so we're not biased toward telling you to rebuild when an extension or integration would solve it — or the reverse. The recommendation matches what your platform and your growth stage actually need.
What We Deliver
Platform & data audit with a prioritized modernization plan
Custom feature & plugin development
Third-party & payment integrations
Performance optimization with measurable before/after benchmarks
Ongoing maintenance & support options
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