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Marketplace Platforms Built For Both Sides

Seller onboarding, commission engines, escrow and automated split payouts — the mechanics a two-sided business depends on.

Multi-vendor platforms built for both sides at once

Watch: the mechanics behind a working marketplaceWatch: the mechanics behind a working marketplace

Onboarding, commission and split payouts done correctly

Self-service seller onboarding with verification
Flexible commission by category, tier or volume
Automated split payouts with escrow and hold periods
Review moderation and dispute handling built in
Buyer storefront and seller portal developed together
Define Your Model

Trusted by specialists all around the world

Prosper Home Loans
Our Care Hospice
Hospice of Gentle Care
Aussie Logo Designer
Melbourne Pro Homes
Nermine George
Pro Soccer Australia
IM Studioz
Birdwood Horse Works
Web Builder LTD
Dhaka Jeans
About This Service

A two-sided business needs a platform serving both sides

Sellers need onboarding, listing tools, order management and transparent payouts, while buyers need trustworthy search, reliable reviews and a consistent experience whoever fulfils the order. We build the commission engine, escrow and payout mechanics correctly, because that is where marketplaces create legal and financial exposure when handled loosely. Both the storefront and the seller portal are built together, since neither is useful alone.
Split
Automated seller payouts
Escrow
Held until fulfilment
See Our Work
A two-sided business needs a platform serving both sides
We get the money mechanics right first
Why Choose Chambrix

We get the money mechanics right first

Commission, escrow and payout logic is where marketplaces most often create exposure, so we agree the model in writing and build it to keep you outside the regulatory perimeter.

Commission Engine

Flexible rates by category, seller tier or volume, calculated and recorded on every transaction.

Financial Compliance

Escrow and payouts handled through a marketplace-ready provider, not held by you directly.

Trust And Safety

Review moderation, dispute handling and fraud signals protecting buyers and honest sellers.

What guides our marketplace work

Principles for platforms that scale on seller growth rather than headcount.
Scale Without Stock
Catalogue grows through seller acquisition rather than your own inventory investment.
Sellers Self-Serve
Proper onboarding and tooling means growth does not require proportionate headcount.
Recurring Commission
Revenue scales with total platform volume, not only with your own direct sales.
Meaningful Ratings
Moderation and verification keep reviews trustworthy for buyers and fair to sellers.
Our Service
Commitments
5-Star Service
Verified Business
Trusted Partner
On-Time Delivery
100% Satisfaction
Mathew's workmanship was excellent. His design and layout advice was invaluable.
Mark StackHome Owner · Melbourne Pro Homes
He is incredibly knowledgeable and his attention to detail and service is top-notch — always fast, friendly and helpful.
NeilClient · Prosper Home Loans
Working with Nermine has been a wonderful experience — each session has led to meaningful and lasting positive changes in both my professional and personal life.
Karina CurleyCoaching Client · Nermine George
I didn't just get photos — I received a transformation.
Sofia M.Salon Client · Avalon Head Spa & Salon
Mark Stack
Neil
Karina Curley
Sofia M.
Ade O.
Lisa
Alana H.
Antonio Moreno
Vivek
Emma Rose
Kem K.
Helen
Why we do

Case studies

Case studies that showcase the agency's approach, process, and results for specific clients.
A Ceremonial Brand Experience for a Head Spa
Avalon Head Spa & SalonA Ceremonial Brand Experience for a Head Spa

How Chambrix built a calm, ceremonial website for a Glastonbury head spa and salon — ritual-led pages and clear booking that reflect the in-salon experience.

Learn more
Turning a Broad Lending Panel Into Clear Choices
Prosper Home & Investment LoansTurning a Broad Lending Panel Into Clear Choices

How Chambrix turned a broad mortgage-broking panel into clear, per-loan-type pages with simple enquiry paths for an Australian finance firm.

Learn more
Selling Fixed-Price Renovations on Trust
Melbourne Pro HomesSelling Fixed-Price Renovations on Trust

How Chambrix built a trust-led website for a Melbourne renovation builder, leading with fixed-price certainty and a real-project portfolio.

Learn more
A Reassuring Front Door for Home Care
CareKindlyA Reassuring Front Door for Home Care

How Chambrix built a warm, reassuring website for a UK home-care provider — plain-language services and low-friction enquiries for anxious families.

Learn more
A Personal Brand That Turns Reviews Into Clients
Nermine GeorgeA Personal Brand That Turns Reviews Into Clients

How Chambrix built a personal-brand website for a life and parenting coach — clear programmes, pricing tiers and a five-star review profile that converts.

Learn more
A Conversion-Focused Site for a Web Agency
Web Builder LTDA Conversion-Focused Site for a Web Agency

How Chambrix built a conversion-focused website for a London web agency — clear services, a real project portfolio and SEO-friendly foundations.

Learn more
Pricing

E-commerce Packages

Online stores built to sell — from launch to scale.

Marketplace Development —€4,000starting from
Launch
€899
one-time
Up to 25 products
Payment + shipping setup
Mobile-first storefront
Basic SEO
Cart + checkout
Most Popular
Growth
€2,199
one-time
Up to 250 products
Custom theme
Discounts & coupons
Analytics + pixels
Speed optimised
30 days support
Scale
€4,999
one-time
Unlimited products
Custom integrations (ERP/CRM)
Multi-currency / multi-language
Advanced SEO
Priority support

How Marketplace Development Works

The same four stages on every project, so you always know what happens next.

  1. Model Definition

    Commission structure, payout terms, dispute policy and verification requirements agreed in writing first.

  2. Platform Foundations

    Multi-vendor data model, seller accounts and the payment split architecture built and tested.

  3. Both-Sided Build

    Buyer storefront and seller portal developed together, since neither is useful without the other.

  4. Launch & Seed

    Onboard initial sellers, monitor transaction integrity and refine based on both sides' feedback.

Marketplace Development — Questions

Straight answers to what clients ask most

How do you handle payments to sellers?
Through a payment provider with marketplace support, which handles split payments, escrow and seller verification. This keeps you outside the regulatory perimeter of holding client funds yourself.
What is the hardest part of launching a marketplace?
The cold-start problem. Buyers will not come without sellers and sellers will not come without buyers. That is a go-to-market challenge more than a technical one, and it should shape your launch plan before the build starts.
Can sellers manage their own listings?
Yes. The seller portal covers listings, inventory, orders, shipping and payout history, with an approval workflow where you want oversight.
How do you prevent fraud?
Seller verification at onboarding, transaction monitoring, payout hold periods on new sellers, and review moderation to keep ratings meaningful.
Contact us

Free consultation - find the right build for your business

Tell us what you're trying to achieve and we'll tell you what it takes. We review your current site, your market and your goals, then recommend a route — a new website, an online store, or an SEO programme — with clear scope and pricing before you commit.

Confirmation of appointment details
Research and preparation before we meet
Consultation to discuss your website, store or campaign
Needs assessment for tailored solutions
Presentation of proposed solutions
Project execution and ongoing support
Follow-up to evaluate effectiveness and satisfaction
support@chambrix.com
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