Blend Commerce says on its site that it fixes conversion before a brand spends more on traffic, and that one line shows why Shopify agencies aren't interchangeable. Pick a full-build team for a new store, a migration specialist if you're leaving another platform, and a conversion specialist if traffic isn't turning into sales.
Shopify partners for builds, migrations and conversion work
Shopify agencies don't all do the same job. Some design and build stores, some move you from another platform, and some only work on conversion once the store is live. The eight profiled at the end of this page are unranked and are described from what each provider's own site says, so you can match them to the work you need done.
Start with the situation that matches yours, get your store details together, then use the questions and the profiles to build a shortlist.
If you're launching, moving platforms or fixing checkout
If you're launching a new store or rebuilding one from scratch, start with the full-build teams: Eastside Co, Charle Agency, Underwaterpistol and Domaine. Most of them cover design, development and migrations, and they differ mostly in size and in what they offer after launch, from monthly retainers to a Shopify-only focus.
If you've already got traffic but it isn't turning into sales, look at Blend Commerce and Electric Eye. Both put optimisation and testing at the centre, and the first says that it fixes conversion before you spend more on traffic. Before you brief either, it's worth knowing what a good conversion rate looks like for Shopify stores.
If email and SMS drive a big share of your revenue, Fuel Made pairs builds with Klaviyo. And if you're unsure whether Shopify is right at all, or you need complex integrations, Webinopoly builds on several platforms, so it isn't tied to Shopify.
Store details to gather before you talk to anyone
Have your current platform, monthly order volume range, product count, key apps and any custom features written down before the first call. Note your launch deadline and who signs off design. If marketing is part of the brief, share your plans too; this Shopify marketing strategy guide can help you frame them. An agency can only quote fairly when it knows what's under the bonnet.
It also helps to list what's working now. If certain pages, collections or apps bring in most of your sales, say so up front, so nobody rebuilds the parts of the store that already earn their keep. A short note on what frustrates your team day to day, from slow edits to clunky checkout steps, gives an agency a far clearer brief than a wish list.
What to ask a Shopify team before you hire it
The trap with this category is assuming every Shopify agency is a store builder. One here is a conversion specialist, one works only on Shopify, and one builds on three platforms. So start every call by asking what the agency would do first, and why.
- Is your main work new builds, migrations or conversion, and what share of projects is each?
- Will you use a theme or build custom, and how will that affect future changes?
- Who on your team works on my store day to day?
- What happens after launch: a retainer, ad hoc support, or nothing?
- How do you test changes before they go live on a busy store?
- Which apps and integrations would you keep, replace or remove?
Also ask to see a store they built or improved in a category close to yours, and what they'd change about it today.
A one-hour test you can run on your shortlist
Pick one product page that matters to you, your best seller or the one that should sell better than it does. Send the same link to two or three agencies and ask each to name three changes they'd make and why. Give them a day to reply, then spend an hour reading the answers side by side. A team that names specific fixes on your page, and says which it would test first, has looked closely at your store. A team that sends a generic list or jumps straight to a full rebuild hasn't, and that tells you how the paid work is likely to go.
Eight Shopify teams, profile by profile
Eastside Co
Shopify Plus agency with London, New York and Dubai offices, selling rapid-deployment themes and SEO that could suit a brand needing to launch quickly.
Charle Agency
London team covering new stores, migrations and conversion work, then a monthly support retainer once the store is live, with search-first values throughout.
Blend Commerce
Conversion is the whole focus rather than store building, fixing the bottom of the funnel first so DTC brands convert more without extra traffic.
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Electric Eye
Senior-led team running a fixed cycle of onboarding, audits, testing and reporting, which may appeal if you want regular improvement over a one-off project.
Underwaterpistol
A London Shopify Plus agency centred on conversion and retention growth, handling design, builds, moves to Shopify and store optimisation for ecommerce brands.
Webinopoly
Houston team not tied to one platform, building on Shopify, BigCommerce and Adobe Commerce with ecommerce, development and integrations handled together.
Fuel Made
Pairing custom Shopify builds with Klaviyo email and SMS, it lets a store and its email programme be planned together.
Domaine
Working only on Shopify across offices in New York, London, Toronto and beyond, it serves global brands needing development, strategy and migrations.
Run an agency or service company and want to be considered for a list like this? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
What does a Shopify agency do?
It designs, builds, migrates or improves online stores on Shopify. Some also run marketing, email or conversion work, while others focus on one of those jobs only.
Do I need a Shopify Plus agency?
Only if you're on Shopify Plus or planning to move to it, as some features and integrations need specialist experience. Many agencies here work on both standard Shopify and Plus.
How much does a Shopify agency charge?
Most Shopify agencies don't publish their fees, so you'll only get a figure once you've shared your brief. Prices vary with scope: a theme setup, a custom build and a migration are very different jobs. Ask for a written quote with the scope, the timeline and what ongoing support costs after launch, so you can compare like with like.
Can an agency move my store to Shopify from another platform?
Yes, most agencies on this list offer migrations. Ask how they handle product data, customer accounts, redirects and search rankings during the move.
Should I fix conversion before redesigning my store?
It's worth checking. A conversion audit may show that smaller changes would help more than a full redesign, and one agency here builds its whole offer around that idea.
How long does a Shopify build take?
It depends on how custom the design is and how much data needs moving. Ask each agency for a timeline with clear milestones and what could delay it.
