domkamienia.pl: closed B2B marketplace for the stone industry

A closed B2B marketplace for the stone industry, where only verified companies see prices and contacts. Plus tenders, grants and job listings.

Service: Custom Web Development
Technologies: B2B, Polylang, WooCommerce, WordPress
Team: 5 people

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The challenge

The stone industry trades slabs, machinery and production offcuts through general classifieds sites and over the phone, without knowing who is on the other side. Dom Kamienia wanted to create a place for professionals only: a closed marketplace where only verified businesses see prices and contacts, yet one that is visible in Google and encourages sign-ups. Alongside the marketplace, the portal was to handle tenders, a grants database and job listings, in three language versions.

The solution

We built the portal on WordPress and our base theme, and wrote the marketplace logic from scratch, without off-the-shelf classifieds plugins. Companies are verified when they register, and data meant for verified users is protected, while the marketplace itself stays visible in search engines. Businesses add and promote listings from their own dashboard, and buyers search offers by multiple criteria and contact sellers directly in the portal. Everything works in three languages, and around the marketplace there are tenders, a grants map, job listings and a store with a configurator for made-to-measure products.

Scope of work

Closed marketplace

Moderated listings, with prices and contacts visible only to verified companies.
Company verification

Registration with company data verification and account approval.
Company dashboard

Adding and promoting listings, plus messaging between companies.
Around the marketplace

Tenders, a grants map, job listings and a store with a configurator.
Three languages

The portal and listings in Polish, English and Italian.