Top Shopify B2B Development Companies in the UK in 2026

B2B ecommerce is still growing fast. The market is projected to increase from around $30 trillion in 2025 to nearly $44.5 trillion by 2029. Shopify is part of that shift, and more manufacturers and wholesale companies are using it as their B2B platform.

At the same time, a B2B build is not the same as a regular ecommerce launch. Things like account-based pricing, ERP connections, company profiles, and payment terms make the work more involved on the technical side.

For that reason, the agency you choose has a real impact on the result. Below is a selection of the top Shopify B2B agencies in the UK with hands-on development experience, so you can look at the options and judge which one is the best fit.

The role of Shopify Plus in modern B2B

Shopify Plus has changed a lot for B2B merchants. In the past, businesses often needed third-party apps or custom fixes just to show different prices to different buyers. Plus made that easier by adding built-in B2B features.

Some of the main ones are:

• Company profiles and locations for managing multiple buyers under one account

• Price lists and catalogues for customer-specific pricing

• Net payment terms and purchase order support at checkout

• Shopify Flow for automating routine internal tasks

• Checkout Extensibility for adding B2B-specific fields and steps

• The option to manage both B2B and DTC from one admin

To find out why more and more B2B companies choose Shopify as their ecommerce platform, read our guide on nine reasons to choose Shopify and Shopify Plus for B2B.

But the platform does not do the work by itself. Those features still need the right setup, the right integrations, and the right structure behind them. That is why businesses often bring in top Shopify B2B development agencies.

Why work with the best Shopify B2B development companies in the UK

A regular Shopify agency can launch a solid store. The best Shopify B2B agencies in the UK are usually better suited for projects with big catalogues, customer-specific pricing, and ERP connections that need to work in real time.

The main reasons to cooperate with professional Shopify B2B agencies include:

• Technical side. B2B builds are often more complex. They may involve Shopify Functions, custom API queries, large metafield setups, and changes at checkout. Agencies without enough B2B experience often patch these things together instead of building them properly.

• Systems and integrations. Many B2B companies depend on ERP, CRM, and warehouse systems. Connecting Shopify to those tools takes proper mapping and logic behind the scenes, not just a plugin.

• How buyers actually work. A good B2B store should make ordering easier for customers and reduce manual work for the internal team. That only happens when the agency understands wholesale processes and not only ecommerce design.

The risk is simple: a store can look good at launch and still fail in day-to-day use. When that happens, teams spend time fixing issues, and customers start ordering outside the platform again. A better agency reduces that risk.

Key B2B specializations in 2026

Not all B2B projects are the same, so it helps to know what type of support you’re looking for before reviewing agencies.

Common areas where you need a specialized B2B setup:

• custom pricing and catalogues

• ERP and backend integrations

• combined B2B and DTC setups

• custom account areas for buyers

• headless storefronts built with Shopify Hydrogen

• migration from older B2B platforms

Each of these calls for a different kind of experience. Some agencies are stronger in integrations, some in custom frontend work, and some in migration projects. That is why it helps to define the real need first.

Top Shopify B2B development companies in the UK

To address your needs, we've compiled a list of the best Shopify B2B agencies in the UK that can help you deal with problems you strive to solve. They were selected based on verified Shopify Partner status, clear B2B positioning, and publicly available case studies.

DigitalSuits – the best Shopify B2B agency in the UK

DigitalSuits is a full-cycle ecommerce agency and a certified Shopify Plus Partner based in London with 10+ years of hands-on experience that works a lot with Shopify B2B projects. They handle the full process, from early planning and store architecture to custom development, and ongoing support after launch.

Their B2B work includes setting up company accounts, customer pricing, catalogues, payment terms, Shopify Flow automations, and checkout changes. They also connect Shopify with ERP and CRM systems and build headless storefronts with Hydrogen and third-party frameworks for brands that need that kind of setup.

The team also works on Shopify theme customization, migrations to Shopify from other platforms, store retaining, and speed improvements. On top of that, they developed their own Shopify app – AI LLMS.txt Generator – for the website's Generative Engine Optimization (GEO). That mix of services makes them the best Shopify b2b development agency in the UK and a practical choice for companies growing their wholesale business on Shopify Plus.

A good example of their work is the Aquablu Shopify B2B case. For that project, DigitalSuits built a Shopify Plus store for both B2B and DTC and developed a custom app for wholesale needs. The DigitalSuits' work contributed to a boost of the company's revenue of about €900,000 after the launch.

Eastside Co

Eastside Co now holds Shopify Platinum Partner status and is considered a reliable agency for its long history with the platform, which shows in the range of services they offer.

That range includes Shopify web design and development, custom app development solutions, priority support, and ecommerce marketing. For B2B brands, their Shopify Plus experience is most relevant in projects that need a stronger technical setup, scalable architectures, or features beyond the default store configuration.

They also run Discovery Audits for existing stores. For brands considering a rebuild, that can help clarify what is working, what is not, and where the next step should be.

Shero Commerce

Shero Commerce is a Shopify Premier Partner with separate service lines for Shopify B2B development, wholesale ecommerce, and hybrid B2B/DTC builds. Their work on the integration side is quite broad, covering ERP, OMS and WMS, CRM, PIM, middleware platforms, marketplace connections, and custom API development.

Alongside the technical side of the work, they also offer growth services such as digital strategy, paid media, email and SMS marketing, Shopify SEO, CRO, and AI- or AEO-related support. That makes them a relevant option for brands that want one agency to handle both the build itself and the ongoing growth of the B2B channel.

Their site also includes case studies for brands such as Archer Roose and Swag Golf, which gives a sense of the range of projects they work on across both B2B-related and DTC ecommerce.

Swanky

Swanky is a Shopify Plus agency with teams in the UK, Australia, and France. Their work includes Shopify development, design, migrations to Shopify Plus, integrations through iPaaS tools, international store setups, and Shopify POS strategy for brands selling across channels.

They also have a separate focus on subscription commerce. That can matter for B2B brands with repeat ordering or replenishment models. Another service they offer is a Shopify Store Health Audit, which is useful for brands that want to review the current setup before changing too much.

Beyond build work, Swanky also supports CRO, digital marketing, analytics, Klaviyo email marketing, and loyalty programmes. Their case studies include FutureYou Cambridge and other consumer brands, which shows strong DTC experience alongside their B2B and subscription work.

Charle

The Charle agency was founded in 2018. It is a specialist agency with deep expertise in Shopify and Shopify Plus development for the B2B segment.

Their B2B work spans the full implementation lifecycle across three core phases: a thorough discovery and requirements analysis to understand how a business operates internally, high-fidelity UI/UX design crafted for wholesale buyer journeys, and full development and QA before launch.

On the technology side, Charle has dedicated partnerships and hands-on experience with leading B2B platforms. For Shopify Plus merchants, they leverage Shopify's native B2B platform to power customized wholesale storefronts from a single Shopify instance.

How to choose the right one among many Shopify B2B ecommerce development companies in the UK

There is no fixed checklist for choosing the right agency. It mostly depends on what you need, what your team can do on its own, and what kind of help you want after the store goes live. However, there are still some questions you need to ask yourself and the agency you're about to work with before the cooperation begins.

• A good starting point is to be honest about your current main issue. It might be ERP integration. It might be pricing complexity or migration from Magento to Shopify.

• You should also know whether you need a combined B2B and DTC setup. Some agencies have done that before, some have not.

• Post-launch support matters too. One agency may be strong at delivering the project and then stepping back. Another may be set up for ongoing support. Neither is wrong, but it should match what you need.

• Shopify Plus is another thing to think about. Most of the B2B features discussed in this article are only available there. If you are still deciding, the agency should be able to explain whether Plus is worth it in your case.

• And finally, look at the work the agency has done before. Wholesale projects usually bring a different set of problems and you need to be sure they have enough experience to deal with any challenge.

A practical test is to ask how the agency would deal with your specific integration scenario. If the answer is clear and specific, that is usually a better sign than a vague reply or a fast recommendation for some generic app.