For agencies

Shopify builds and support, under your name.

For agencies who want a Shopify build partner working under their brand. The work goes out as yours, and your client never hears our name.

Your brand on the work

Everything goes out under your agency’s name and brand.

We build it

Theme builds from your designs, subscriptions, bundles, quizzes and product builders, and ongoing support and fixes.

Your client never sees us

No Cartmasters name in the code, the emails or anything else your client sees.

How we work with you

You always know what’s happening.

We run every piece of work through our own system. It keeps a record of everything you ask for and everything we ship, so the record is there for you to use with your client.

  1. 01

    Every request tracked

    Every request you send, by email or chat, is logged and tracked until it’s done, so nothing gets lost on the way.

  2. 02

    A before and after on every change

    Each change comes with a before and after, on a phone and a desktop, and a link to where it would be changed in the admin, ready to pass on to your client under your name.

  3. 03

    A daily update

    A short update each day on what moved, so you know where every request stands.

  4. 04

    How we use AI

    We use AI to keep track of every request and to check our work. It doesn’t ship anything: every change is built and reviewed by us.

In writing

An NDA by default.

We sign an NDA before you share a brief, as standard.

Your clients stay yours.

We won’t approach your clients or your staff, and we won’t work directly for your clients. We put that promise in writing.

White-label work in the log

46 white-label ships.

46 of the 82 changes in our public log (28 May 2026 to 23 October 2026) were white-label work for agencies: 22 new features, 21 fixes, 2 design changes and 1 speed improvement. In the log each one carries only a general type, never the brand or the agency.

See the log

How pricing works

Flexible, to suit the work.

A day rate, a fixed price per project or a monthly retainer. Tell us what you need and we’ll suggest the one that fits.

Studio facts

Cartmasters is a Shopify studio for direct-to-consumer brands.

What we are
A small Shopify studio
Who we work with
Direct-to-consumer brands in the UK, Europe, the US and Australia, and agencies under their own name
What we do
Store builds and rebuilds, moves onto Shopify, custom features, subscriptions, bundles and product builders, and looking after stores after launch
Awards
Two wins at the UK eCommerce Awards 2026: UK eCommerce Website of the Year and UK User Experience of the Year. Designed by Anthony Bliss, built by Cartmasters.
How to start
Send a few lines and your store’s address through the contact page, and we’ll come back to you by email. Get in touch

Contact

Got a Shopify build for a client?

Tell us about the client’s store and what needs doing. We sign an NDA before you share the details.

Send us a brief