Marketplacer enables retailers to test and scale new product categories through curated seller ecosystems — generating real demand data before committing capital to stock. No replatforming. No inventory exposure. A growth model aligned with yours.
Why category testing needs a better model
Most retailers still approach new categories the same way they approach a full range commitment. Capital tied up in inventory. Ranging decisions based on assumption, not evidence. Forecasting driven by gut feel rather than real purchase behaviour.Marketplacer changes the equation. Onboard third-party sellers into a target category, surface those products to real customers, and measure actual demand — before a single unit of stock is committed.The market validates the category. The data informs the decision.
The traditional expansion model
Category testing at commercial scale
Why category testing needs a better model
Add new categories through third-party sellers. No stock. No warehousing. No balance sheet commitment. Test at real scale without the financial risk that typically comes with it.
Actual purchase behaviour — conversion rates, attach rates, and sales velocity — tells you which categories to scale and which to retire. No forecasting required. No assumptions needed.
Launch new categories through automation, prebuilt integrations, and a pre-vetted seller ecosystem. Most operators are live and trading within 90 days.
No large upfront platform fees. Marketplacer takes a small percentage of commissions generated through your seller ecosystem — our growth scales directly with yours.
how it works
Connect pre-vetted sellers in your target category through Marketplacer's curated seller network — or bring your own. Sellers onboard in days. Sourcing, vetting, and compliance are managed by Marketplacer.
New categories go live on your existing commerce stack — no replatforming required. Real customers generate the purchase behaviour and demand signals needed to make confident ranging decisions.
Performance dashboards surface what customers are buying, at what conversion rates, and from which sellers. Double down on categories earning their place. Step back from those that don't — without write-offs, markdowns, or warehouse clearance.
Lifestyle & Home
Conv. 4.8% · Vel. ↑34%
Fashion Accessories
Conv. 3.1% · Vel. ↑12%
Outdoor & Garden
Conv. 2.7% · Vel. →
Pet Supplies
Conv. 0.9% · No reorder
Beauty & Wellness
Conv. 3.8% · New
Rackhams launched as a curated online luxury marketplace with no physical stores and no held stock. By building a seller ecosystem through Marketplacer, they expanded across new categories — sourcing 500+ premium brands and 50,000+ products — and grew revenue 300% year over year.Ranging decisions were driven by real demand data, not forecasts. The infrastructure scaled with the business. The risk stayed managed throughout.
300% YoY Revenue growth
500+ Premium brands sourced
50,000+ Products across categories
0 Additional invetory held
We wholeheartedly recommend Marketplacer. Our experience with the platform and the outstanding team behind it has been truly exceptional. Marketplacer has enabled us to build a thriving business from the ground up, entirely online, without ever handling physical products, a testament to the platform's power and versatility.
MJ
Mark Jordan
CEO, Rackhams
Everything you need to test smarter and faster
Sourcing quality sellers in an untested category is typically the most time-intensive part of range expansion. Curator removes that friction — Marketplacer identifies, vets, and contracts sellers on your behalf. Operators define the categories and brands; Marketplacer handles sourcing and compliance.
A preconfigured implementation framework that gets retailers live in as little as 90 days. Global taxonomy, commission structures, seller onboarding workflows, and platform integrations are established upfront — removing the setup complexity that typically delays marketplace adoption.
As sellers onboard into a new category, Marketplacer automatically maps taxonomy, resolves duplicates, and enriches product content. Catalog accuracy is maintained at scale — without manual operator overhead — ensuring a consistent customer experience even as assortment grows rapidly.
Dashboards track sales velocity, conversion rates, return rates, and seller compliance in real time. Operators can segment by category, product, or seller — giving merchandising and commerce teams the precise evidence needed to range with confidence. Category testing only generates value when the data is actionable.
Running multiple sellers across new categories introduces payment complexity. MPay automates commission splits, reconciliation, and seller-accurate payouts — so operations scale without financial administration overhead. ATO, AML, and PCI-DSS compliance is built in.
Find your next best-selling category
We'll model the revenue potential and show you what a live category test looks like in your seller ecosystem — in a single conversation.
Managed dropshipping is one of the ways operators grow with Marketplacer.
Grow your product assortment by connecting third-party sellers — without buying stock or inventory risk.
Build a modular approach to catalog and inventory that scales with your commercial strategy — without replatforming.
Enforce pricing rules, compliance, and brand standards across all third-party supply at scale.
Sell products directly to customers without managing inventory or a warehouse. Third-party sellers fulfill every order.
