London agencies we would shortlist for a Shopify Plus build or migration, checked against their Shopify Partner Directory profiles and published Plus work.
Start with migrations they have already shipped from your current platform. Moving from Magento or Salesforce is a different project from a first build, and an agency that has done it before will know where the data and redirects go wrong.
Check the partner tier in the Shopify Partner Directory rather than on the agency’s own site. Shopify awards Select, Plus, Premier, and Platinum tiers based on experience and results on the platform, and directory profiles also show reviews from real merchants.
Ask who stays on after launch. Some agencies hand over and move on; others run CRO, SEO, or marketing retainers. If you want one partner for build and growth, shortlist agencies that do both.
What a Shopify Plus project costs
Shopify publishes Plus pricing in the UK from £1,950 a month on a one year term, or £1,800 a month on a three year term, with a variable fee for higher volume merchants.
Agency fees sit on top. Among the agencies on this list, published starting points range from about $25,000 to $40,000 for a Plus project. Migrations with complex integrations, multiple regions, or custom checkout work cost more and can take six months or longer.
Frequently asked questions
Published starting prices on this list range from about $25,000 to $40,000 for a Plus project. Larger migrations with ERP integrations, several regions, or custom features cost more. Ask for a fixed scope for the build and a separate quote for ongoing work.
Plus, Premier, and Platinum are tiers Shopify gives its partners based on experience and proven results on the platform, with Platinum the highest. You can check any agency’s tier on its Shopify Partner Directory profile.
A simple replatform can take two to three months. Larger migrations with custom integrations usually take four to six months or more. Orlebar Brown’s move to Shopify with Tryzens took about six months for the Shopify build itself.
No. Listings are free and the order is editorial. Read how we choose agencies on our methodology page, and get in touch if any detail is out of date.