Selling through major online marketplaces can mean rising fees, complicated rules and less control over your own business.
MC999 is a fairer UK online marketplace for independent sellers, helping businesses reach new customers and sell online without commission being taken from each sale.
Customers discover your products on MC999 and complete their purchase directly with you, helping you retain control of the customer journey. Sellers using Shopify, BigCommerce or Shopline can connect their online store, allowing customers to click through and complete their purchase on their existing website.
Every successful marketplace started with a handful of businesses willing to be there from the beginning. We're looking for ambitious sellers who want to grow with us, help shape the platform, and be recognised as part of MC999's founding community.
Every sale should reward your hard work—not disappear in fees. With no commission on your sales, you keep more of what you earn and invest it back into growing your business.

Why rely on one marketplace? Build your presence on another platform, showcase your products in more places and create new opportunities for future growth with MC999.
Your business deserves flexibility and control. Build your brand, grow your customer base and sell on your terms with a marketplace designed to support independent businesses.
Your business deserves transparency. We believe in straightforward policies, fair decisions and open communication—giving you confidence to focus on growing your business, not worrying about unexpected changes.
MC999 gives you another place to showcase your products, build your presence and stay in control of how customers buy from you.
MC999 is an alternative selling platform created to give businesses of all sizes another place to showcase their products and build their online presence.
Customers discover your products on MC999 and complete their purchase directly with you, helping you retain control of the customer journey. Shopify sellers can connect their online shop, allowing customers to click through and complete their purchase on their existing website.
Every successful marketplace started with a small group of businesses willing to join early. By becoming an MC999 Founding Seller, you can establish your presence before the marketplace becomes more widely available.
You’ll be among the first businesses to create a presence on MC999—from independent sellers and growing brands to established retailers with larger online stores. You’ll also have opportunities to share feedback, hear about new features early and take part in future promotional opportunities as the marketplace grows.
MC999 does not take commission from your sales, so you keep the full value of every purchase made through your business.
Founding Sellers can join during MC999’s early launch stage. As the marketplace develops, seller access will move to a monthly subscription model, but MC999 will remain commission-free.
Founding Seller places are intentionally limited. Once registration closes, new businesses will still be able to join MC999, but they will not receive Founding Seller status or recognition. Join now to secure your place as one of the businesses supporting MC999 from the beginning.
Enter your details below and we’ll send you the link and instructions to complete your MC999 seller registration.
Interested, but not ready to register? Leave your details and we’ll send you Founding Seller news, platform updates and future opportunities.