# Shopify Plus builds, migrations and retainers for UK brands > Shopify Plus agency for UK brands, proven in the Nordics: £150M+ in B2B commerce processed and £100M+ in D2C revenue driven. Builds, migrations, retainers, AI. A Shopify Plus partner that also ships custom software: storefronts, platforms and AI tools that move the numbers that matter. Think Commerce is a Shopify Plus agency for UK brands, with a track record built in the Nordics. We have processed **£150M+ in B2B commerce** and driven **£100M+ in D2C revenue**. We build and migrate Shopify Plus stores, keep improving them on a monthly retainer, and set up AI tools for merchandising, CRO and automation. We are an official Shopify Plus Partner. [Tell us about your Shopify project](https://thinkcommerce.com/contact) or [see our case studies](https://thinkcommerce.com/case-studies). Brands we have worked with include Christiania Glasmagasin, GaitLine, Majema, SA1NT, Fuel of Norway, Garntopia, Aquafigure, Tufte and Kano. ## What we do ### Shopify Plus builds and development We build conversion-first themes and headless storefronts on Shopify Plus. We also build Shopify apps, internal tools and customer portals that fit how your team works. We scope tightly up front and ship in stages, so you see progress every week. Our specialisms are Shopify Functions, Markets, GraphQL APIs, Gadget and Klaviyo. See how we approach [Shopify Plus development](https://thinkcommerce.com/services/shopify-plus). We also build B2B and wholesale stores on Shopify Plus: see our [Shopify B2B service](https://thinkcommerce.com/services/shopify-b2b). ### Migrations to Shopify We move brands to Shopify Plus from WooCommerce, Magento and other platforms. Data, SEO and redirects are handled end to end, with a zero-downtime cutover plan, and we go live in weeks, not quarters. Read [how a migration to Shopify works](https://thinkcommerce.com/services/shopify-migration), or go straight to [moving from WooCommerce to Shopify](https://thinkcommerce.com/services/woocommerce-to-shopify) or [moving from Magento to Shopify](https://thinkcommerce.com/services/magento-to-shopify). A WooCommerce migration starts from £8,000, ex VAT. Tell us where you are today, and we'll send back a tailored migration plan, free and with no obligation. We reply within one business day. [Ask for your migration plan](https://thinkcommerce.com/contact). ### Bespoke platforms We build standalone products from scratch, such as the real-time auction platform for London Mint Office and [Dividendly, our own dividend voucher tool](https://thinkcommerce.com/insights/how-we-built-dividendly). ### AI services for Shopify merchants We use AI tools for merchandising, CRO and automation, get your store ready to be found in search and AI answers, and coach your team to use the tools well. Start with our [AI services for Shopify merchants](https://thinkcommerce.com/services/ai), or see how we [prepare stores for agentic commerce](https://thinkcommerce.com/services/agentic-commerce). AI coaching and audits start from £750, ex VAT. ## Retainers at a fixed monthly price Published prices and a clear scope. Every retainer rolls monthly, with one month's notice and no minimum term. - **[Essentials](https://thinkcommerce.com/offers/essentials-retainer)**: Reliable upkeep for a store that just works. £1,000 a month, ex VAT · + £500 one-off onboarding · Standard response: Two business days - **[Growth](https://thinkcommerce.com/offers/growth-retainer)**: Custom Shopify work that moves your numbers. £2,500 a month, ex VAT · Standard response: One business day - **[Partner](https://thinkcommerce.com/offers/partner-retainer)**: An embedded senior Shopify team for your brand. £5,000 a month, ex VAT · Standard response: Same business day Response times are for acknowledging and starting work, not for resolving it. [Compare the three retainers side by side](https://thinkcommerce.com/retainers), or see our [fixed-price projects](https://thinkcommerce.com/offers/fixed-price-projects) if you need a set scope instead. ## Selected work - **[Christiania Glasmagasin](https://thinkcommerce.com/case-studies/christiania-glasmagasin)** (Shopify Plus): **+120%**: Conversion rate, year after migration - **[GaitLine](https://thinkcommerce.com/case-studies/gaitline)** (Shopify Plus): **+71%**: Conversion rate, first 90 days - **[SA1NT](https://thinkcommerce.com/case-studies/sa1nt)** (Shopify migration): **10 weeks**: First conversation to launch - **[Fuel of Norway](https://thinkcommerce.com/case-studies/fuel-of-norway)** (Shopify): **Under two weeks**: Kick-off to live store - **[Majema](https://thinkcommerce.com/case-studies/majema)** (Shopify Plus): How we moved Majema from Magento 2 to Shopify Plus, starting with a checkout proof of concept and a custom theme built alongside their own designer. > "Think Commerce had outstanding technical expertise in Shopify." > > Marcus Billström, MD, Majema [See all our case studies](https://thinkcommerce.com/case-studies). ## We run serious commerce on both sides of the table From high-volume wholesale and bespoke platforms to fast-moving D2C storefronts, we have shipped and scaled both. **B2B:** wholesale, headless and bespoke platforms built from scratch, including a real-time auction platform for London Mint Office and Dividendly, our own dividend voucher tool. **B2C:** high-converting Shopify and Shopify Plus storefronts and migrations for Christiania Glasmagasin, GaitLine, Garntopia, SA1NT, Majema and Fuel of Norway, launched in weeks not quarters. ## Talk to us Tell us what you sell, where you sell it and what you want to change. We reply within one business day. [Get in touch about your Shopify project](https://thinkcommerce.com/contact). ## Replatform to Shopify Plus, without the downtime We move stores from WooCommerce and Magento to Shopify and Shopify Plus. We handle data, SEO, redirects, theme and integrations through to launch. [Go to the contact page](https://thinkcommerce.com/contact) ## Frequently asked questions ### How long does a Shopify Plus build take? Most storefronts go live in 6–12 weeks, depending on scope and integrations. We scope tightly up front and ship in stages, so you see progress every week rather than waiting for one big reveal. ### Do you work with B2B as well as D2C? Yes. We build D2C storefronts and bespoke B2B and wholesale stores, on Shopify Plus and on custom platforms. ### Can you migrate us from WooCommerce, Magento or another platform? Yes. We handle the move end to end, including data, SEO and redirects, with a zero-downtime cutover plan. ### What happens after launch? We stay on to test, merchandise and automate, so the store keeps improving long after go-live. That ongoing work runs on a monthly retainer. --- Source: https://thinkcommerce.com/ · Last updated: 6 November 2026 · Contact: hello@thinkcommerce.com