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E-commerce & marketplaces

B2B marketplaces and stores built around how you sell - not around plug-ins.

We build custom B2B marketplaces and e-commerce portals with multi-vendor catalogues, trade pricing, quotes, supplier onboarding and the delivery and payment rules your business actually needs.

At a glance

  • B2B & B2CMulti-vendor marketplaces, trade portals and online stores
  • 2-4 monthsTypical delivery for a portal or marketplace
  • USD · GBP · EUR · INRQuoted and invoiced in your currency

E-commerce & B2B portals

When store builders stop fitting your business

Off-the-shelf store builders are fine until you need bulk pricing, supplier onboarding, RFQs, multiple outlets or your own delivery rules. Then you are paying for plug-ins that do not talk to each other - and fighting the platform instead of selling. A custom portal puts your catalogue, pricing and order flow in one system you own.

What we build

  • B2C online stores and multi-vendor B2B marketplaces
  • Supplier and vendor onboarding with approval workflows
  • Customer-specific, tiered and bulk pricing
  • Request-for-quote (RFQ) and quote-to-order flows
  • Large catalogues with variants, specs and documents
  • Payment gateways, invoices and credit accounts
  • Shipping, delivery zones and courier integrations
  • Admin, vendor and buyer dashboards with reports

Why OASIS

We built the Medigear B2B marketplace for the UK medical equipment market, plus e-commerce stores for retail brands. You get a platform designed for your trading model, full ownership of the code, and support as your catalogue and order volume grow.

Plan an e-commerce portal

What we build

Commerce platforms for different trading models

Every trading model has its own rules. We build the one that fits yours.

Multi-vendor marketplaces

Many suppliers, one storefront, with commissions, vendor payouts and approval control.

B2B trade portals

Logged-in buyers see their own prices, credit terms, order history and reorder lists.

Supplier portals

Suppliers upload products, manage stock and respond to RFQs in one place.

Multi-country stores

Several languages, currencies and tax rules from one admin.

Integrated commerce

Connected to your ERP, accounting, inventory or warehouse system.

Regulated products

Document checks, buyer verification and restricted catalogues for regulated goods.

How we build

From trading model to live marketplace

We map your buyers, sellers, pricing and order flow first, then build and launch in stages.

  • PHP (custom MVC)
  • MySQL
  • REST APIs
  • JavaScript
  • Bootstrap 5
  • Payment gateways
  • WhatsApp Business API
  1. 01

    Discovery & data model

    We map your workflows, users and data sources, then agree scope, milestones and a fixed quote.

  2. 02

    Clickable prototype

    You see the screens and user journeys before development starts - and shape them while changes are cheap.

  3. 03

    Build in sprints

    Working modules on a staging server every sprint, with data migration and integrations tested along the way.

  4. 04

    Go-live, training & AMC

    Deployment, user training and an annual maintenance contract that keeps the system secure, backed up and evolving.

Questions

E-commerce & marketplace FAQ

Why not use Shopify or WooCommerce?

For a standard online store, they are a good choice. A custom platform makes sense for B2B trade pricing, multi-vendor marketplaces, RFQs, approval flows or deep integration with your own systems - where plug-ins become expensive and fragile.

How long does a marketplace take to build?

Portals and marketplaces usually take 2-4 months depending on scope, integrations and the number of user roles.

Can buyers see their own prices?

Yes. We build customer-specific, tiered and volume pricing, credit accounts and reorder lists for logged-in trade buyers.

Which payment gateways do you integrate?

We integrate the payment gateways your market uses, plus invoices and credit terms for trade customers.

Do you support the platform after launch?

Yes. Most clients continue with an AMC plan for updates, security, backups and new features.

Can we see an example of a marketplace you built?

Yes. Medigear.uk is a global B2B marketplace for certified medical equipment, with supplier onboarding, a full catalogue, RFQs, bulk ordering and buyer accounts. Read the case study for what we built and how it works.

Tell us about your E-commerce project

Only name, email and phone are required - the rest helps us reply with useful detail.

What are you building?

Features you need

Tick all that apply

What happens next

  1. 1 A real person - not a bot - reads your message.
  2. 2 We reply within one business day with honest, helpful next steps.
  3. 3 If it's a fit, we set up a relaxed discovery call. If it's not, we'll happily point you in the right direction.

No spam, ever. We'll only use your details to respond to your enquiry.

Sell the way you trade

Tell us about your buyers and sellers.

Share your catalogue size, pricing rules and order flow. We will come back with questions, a suggested scope and a fixed quote.

Plan your marketplace

info@oasis.ind.in · Working with clients in the UK, EU, USA and Asia