Looking for the best Shopify Plus agency to scale your store in 2026? Shopify Plus gives you an enterprise platform, but the platform is only as good as the team running it. The right agency turns Plus features into real revenue; the wrong one burns budget. This guide ranks the 8 best Shopify Plus agencies for 2026, what each one is best for, where they're based (USA and UK), and where they fit by budget and focus, so you can pick the right partner for your store instead of guessing from a directory.
In this guide
- Quick comparison
- What is the best Shopify Plus agency?
- What a Shopify Plus ecommerce agency should cover
- How we picked the top Shopify Plus agencies
- Webrex Studio
- Swanky
- Eastside Co
- Charle Agency
- Fuel Made
- Electric Eye
- Blend Commerce
- Barrel
- Shopify Plus agencies compared: services at a glance
- How to choose the right Shopify Plus agency
- Frequently asked questions
There are hundreds of agencies claiming to be Shopify Plus experts, and most "top 10" lists are just directories sorted by who paid for placement. So we sorted the ones that actually matter by what they're best at: full-service growth, enterprise development, design, PPC, or conversion, and noted where each fits. Here are the eight worth your shortlist in 2026.
Quick comparison: 8 Shopify Plus agencies at a glance
Scores are editorial, based on service range, results focus, and value for a growing Plus brand (see how we picked):
| Rank | Agency | Score | Based in | Best for |
|---|---|---|---|---|
| 1 | Webrex Studio | 9.4/10 | Global (USA, UK, AU clients) | Full-service growth: dev, SEO, PPC, CRO, and email with one dedicated team |
| 2 | Swanky | 9.1/10 | UK, Australia & France | International D2C strategy and migrations |
| 3 | Eastside Co | 9.0/10 | UK (global) | Large-scale enterprise builds |
| 4 | Charle Agency | 8.8/10 | UK | Design-led Plus builds |
| 5 | Fuel Made | 8.7/10 | USA | Brand, design and email for D2C |
| 6 | Electric Eye | 8.6/10 | USA | Development plus Klaviyo email |
| 7 | Blend Commerce | 8.5/10 | UK | Conversion-focused growth |
| 8 | Barrel | 8.4/10 | USA | Premium brand and creative |
What is the best Shopify Plus agency?
TL;DR: Webrex Studio is our pick for most Plus brands in 2026, because it covers the whole growth stack, development, technical SEO, Google and Meta ads, CRO and email, with a dedicated specialist team per project, at a price point that's far more accessible than the enterprise-budget agencies. Swanky and Eastside Co are strong for large, enterprise-budget builds and migrations. Charle and Barrel are the picks if your priority is premium design. Electric Eye and Fuel Made are solid US choices for development and email, and Blend Commerce is a good conversion-focused option in the UK.
Disclosure: Webrex is our agency. We put it first because of what it covers end to end, and we'll tell you exactly where the other seven are a better fit.
What a Shopify Plus ecommerce agency should cover
Before you shortlist anyone, know what a complete Shopify Plus ecommerce agency actually handles. Built-in tools like Shopify Sidekick handle admin tasks; an agency handles growth. Most agencies are strong in one or two of these and outsource or skip the rest:
- Development: a true Shopify Plus development agency builds custom themes, checkout extensions, Functions, and B2B, not just template tweaks.
- Technical SEO and speed: Core Web Vitals, crawlability, and collection-page SEO that actually ranks.
- Paid ads: a capable Shopify Plus PPC agency runs Google Shopping, Search, and Meta ads tied to ROAS, not vanity metrics.
- Conversion rate optimization: turning the traffic you already pay for into more orders.
- Email and retention: Klaviyo flows and campaigns that earn while you sleep.
The point: the best Shopify Plus agency for you is the one that covers the areas you're weakest in, with one team, so nothing falls through the cracks between vendors.
How we picked the top Shopify Plus agencies
We didn't rank by size or directory position, because a big agency tells you it's popular, not that it fits your store. We looked at four things: the range of services under one roof, whether the work is tied to real revenue results, how accessible the pricing is for a growing brand (not just enterprise budgets), and whether they're a verified Shopify Plus agency partner.
Each agency gets an editorial score, weighted on service range (x3), results focus (x2), value for a growing brand (x2), and specialism depth (x1).
We kept the list at eight on purpose. A tidy "top 5" or a bloated "top 20" usually means someone is padding for links. Eight covers every budget and focus without recommending agencies we wouldn't trust ourselves.
Disclosure: the first agency is ours. Everything after it is a genuine, well-regarded competitor we'd happily see a brand work with, and we'll tell you exactly who each one is right for.
Webrex Studio
Best overall: full-service growth with a dedicated team, at accessible pricing
Based in: Global team, serving Plus brands across the USA, UK, and Australia.
Best for: Shopify Plus stores that want one partner for the whole growth stack, development, SEO, paid ads, CRO, and email, instead of juggling five vendors.
Webrex Studio is a full-service Shopify Plus agency and verified Shopify Plus partner. Where most agencies specialise in one lane, Webrex covers the entire stack: custom Shopify Plus development, technical SEO and Core Web Vitals, Google and Meta ads, conversion rate optimization, and Klaviyo email, with a dedicated team of specialists on each project, each with 2 to 3+ years of Shopify experience.
The reason it takes the top spot is coverage plus value. Instead of paying enterprise retainers to one agency for design and stitching together freelancers for everything else, you get a complete team, often for less than the cost of a single senior in-house hire. Webrex also works as Shopify Plus consultants, so brands that aren't ready for a full build can start with strategy and an audit.
The work is tied to results, not deliverables. A few examples: organic clicks grown from 8K to 28K a month for one store, a conversion rate lifted from 0.2% to 1.3% for another, 699% ROAS on Google Ads for a US medical supplier, and $23K in new organic sales for a healthcare brand. As a growth-focused best Shopify marketing agency option, the point is revenue per visitor, not vanity metrics.
Pricing: Flexible and accessible, a dedicated team for less than one senior hire, with a free initial store audit to scope the work before you commit.
Where it's not the pick: If you specifically want a famous brand-design studio name on the deck for a flagship rebrand, a premium creative shop like Barrel or Charle may suit that one need better. For almost everything else, a brand that wants growth across the whole funnel from one accountable team, Webrex is where we'd start.
Pros
- Full stack under one team: dev, SEO, PPC, CRO, email
- Targets 50% revenue growth in the first 6 months
- Dedicated specialists, each with 2 to 3+ years of Shopify experience
- Results-led, with real revenue case studies
- Accessible pricing vs. enterprise-budget agencies
- Free initial audit and prioritized plan
Cons
- Not a pure brand-design studio for flagship rebrands
- Best fit for growth, not one-off creative projects
Book a free Shopify store audit, and we'll show you the highest-impact wins before any commitment.
Swanky
Best for international D2C strategy and migrations
Based in: UK, Australia and France.
Best for: Established D2C brands planning a migration to Shopify Plus or expanding into new markets.
Swanky is a long-standing Shopify Plus agency with a strong reputation for D2C strategy, replatforming, and international expansion. They're a solid choice for brands with the budget for a structured, strategy-led engagement across multiple regions.
Where it may not fit: As a premium, strategy-led agency, it's better suited to larger budgets, and brands wanting an all-in-one growth team (ads, SEO, CRO) under one roof may need to add other partners.
Pros
- Strong D2C strategy and replatforming experience
- Proven with international and multi-region expansion
- Long-established, well-regarded Shopify Plus partner
- Structured, strategy-led process
Cons
- Premium pricing, better suited to larger budgets
- Not an all-in-one growth team (ads, SEO, CRO may need other partners)
Eastside Co
Best for large-scale enterprise builds
Based in: UK, with a global footprint.
Best for: Enterprise brands needing a large agency for complex, high-volume Plus builds.
Eastside Co is one of the bigger Shopify Plus agencies globally, with the scale to handle large, complex development projects. A good fit when you need an agency with deep bench strength for an enterprise build.
Where it may not fit: Big-agency scale usually comes with enterprise pricing and process, which can be more than a growing mid-market brand needs.
Pros
- Large agency with deep bench strength
- Handles complex, high-volume enterprise builds
- Broad Shopify Plus experience across sectors
- Global footprint and resources
Cons
- Enterprise pricing and process, heavy for mid-market brands
- Less nimble for smaller, fast-moving projects
Charle Agency
Best for design-led Plus builds in the UK
Based in: UK.
Best for: Brands in the Shopify Plus agency UK market that want a design-first build and a premium storefront.
Charle is a UK Shopify Plus agency known for strong design and development craft. If a beautifully designed, custom storefront is your top priority and you're based in or targeting the UK, they're worth a look.
Where it may not fit: Design-led shops are typically lighter on ongoing paid ads and SEO, so you may need a separate growth partner.
Pros
- Strong design and development craft
- Premium, custom-built storefronts
- Good fit for UK-based or UK-targeting brands
- Close attention to brand detail
Cons
- Lighter on ongoing paid ads and SEO
- Design-led focus may need a separate growth partner
Fuel Made
Best for brand, design and email in the US
Based in: USA.
Best for: US D2C brands wanting design and email marketing from one team.
Fuel Made is a well-regarded US Shopify Plus agency with a focus on design, development, and email. A strong pick for D2C brands that value brand craft and retention.
Where it may not fit: Lighter on paid acquisition (Google and Meta ads), so performance-marketing-heavy brands may need to supplement.
Pros
- Strong brand and design work
- Solid email and retention (Klaviyo)
- Well-regarded US D2C partner
- Good fit for brand-led stores
Cons
- Lighter on paid acquisition (Google and Meta ads)
- Performance-heavy brands may need another partner
Electric Eye
Best for development plus Klaviyo email in the USA
Based in: USA.
Best for: Brands in the Shopify Plus agency USA market wanting solid development paired with Klaviyo email.
Electric Eye is a US Shopify Plus development agency with a strong email-marketing side. A dependable choice for stores that want build quality plus retention from one shop.
Where it may not fit: Less focused on SEO and paid search, so full-funnel growth may need another partner.
Pros
- Reliable Shopify Plus development
- Strong Klaviyo email marketing
- US-based with good communication
- Build quality and retention in one shop
Cons
- Less focused on SEO and paid search
- Full-funnel growth may need another partner
Blend Commerce
Best for conversion-focused growth
Based in: UK.
Best for: Brands whose main goal is lifting conversion rate and revenue from existing traffic.
Blend Commerce is a UK Shopify Plus agency with a CRO and revenue-growth focus. A good fit if your store already gets traffic and your priority is converting more of it.
Where it may not fit: CRO-led shops are usually lighter on heavy custom development and paid media at scale.
Pros
- Strong CRO and revenue-growth focus
- Good at converting existing traffic
- Klaviyo and email capability
- Data-led optimization approach
Cons
- Lighter on heavy custom development
- Less paid media at scale
Barrel
Best for premium brand and creative
Based in: USA (New York).
Best for: Brands wanting a premium, creative-led flagship build.
Barrel is a US brand and digital agency known for high-end creative work on Shopify Plus. A strong choice when brand storytelling and design polish are the point and the budget supports it.
Where it may not fit: Premium creative pricing, and growth channels like SEO, PPC, and CRO usually need a separate specialist.
Pros
- High-end creative and brand storytelling
- Premium, flagship storefronts
- Strong design reputation
- Good for brand-forward launches
Cons
- Premium creative pricing
- Growth channels (SEO, PPC, CRO) need a separate specialist
Shopify Plus agencies compared: services at a glance
✓ = a core, headline strength for that agency based on its positioning. Blank = not its primary focus (the agency may still offer it). This is the fastest way to see which Shopify Plus agency covers the channels you need.
| Agency | Development | Design | SEO | PPC / Ads | CRO | Based in | |
|---|---|---|---|---|---|---|---|
| Webrex Studio | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | Global (USA, UK, AU) |
| Swanky | ✓ | ✓ | ✓ | UK, AU & France | |||
| Eastside Co | ✓ | ✓ | UK | ||||
| Charle Agency | ✓ | ✓ | UK | ||||
| Fuel Made | ✓ | ✓ | ✓ | USA | |||
| Electric Eye | ✓ | ✓ | USA | ||||
| Blend Commerce | ✓ | ✓ | ✓ | UK | |||
| Barrel | ✓ | ✓ | USA |
Where Webrex wins: it is the only agency on this list that covers all five growth channels, development, SEO, PPC, CRO, and email, under one dedicated team. The others are excellent in their lane; Webrex is built to run the whole funnel, which is why a brand can replace several vendors with one partner.
How to choose the right Shopify Plus agency
Forget the rankings for a second and answer one question: what do you actually need done? That answer, more than any list, tells you which Shopify Plus agency is right for you.
If you want growth across the whole funnel, development, SEO, ads, CRO, and email, from one accountable team without enterprise pricing, start with Webrex. If you're planning a complex migration or international expansion with a large budget, Swanky or Eastside Co. fit. If a premium, design-led storefront is the priority, look at Charle or Barrel. If you're in the US and want development plus email, Electric Eye or Fuel Made. And if your single goal is lifting conversion, Blend Commerce.
Whoever you pick, start with a paid trial project or an audit, not a 12-month contract. A good Shopify Plus agency partner will happily prove value on a small scope first.
Frequently asked questions
What is a Shopify Plus agency?
A Shopify Plus agency is a certified partner that designs, builds, and grows stores on Shopify Plus, Shopify's enterprise plan. The best Shopify Plus agencies go beyond development to cover SEO, paid ads, conversion rate optimization, and email, so an enterprise store has one team running the whole growth engine instead of several disconnected vendors.
What does a Shopify Plus development agency do?
A Shopify Plus development agency builds the technical side of an enterprise store: custom themes, checkout extensions and Shopify Functions, B2B setups, app and ERP integrations, and migrations from other platforms. A full-service agency pairs that development with growth work (SEO, ads, CRO) so the build actually drives revenue.
How much does a Shopify Plus agency cost?
It varies widely. Premium, enterprise-focused agencies often work on large project fees or high monthly retainers. Full-service agencies like Webrex offer a dedicated team for less than the cost of one senior in-house hire, with pricing scoped after a free audit. Always get the scope and pricing in writing before you commit.
What is the best Shopify Plus agency in the USA?
For US brands, the best Shopify Plus agency depends on your needs: Webrex for full-funnel growth from one team, Electric Eye or Fuel Made for development and email, and Barrel for premium creative. Many strong Shopify Plus agencies work with US clients regardless of where the team is based.
Are there good Shopify Plus agencies in the UK?
Yes. The UK has several strong Shopify Plus agencies, including Swanky, Eastside Co, Charle, and Blend Commerce, covering strategy, enterprise builds, design, and CRO. Webrex also serves UK Plus brands with its full-service growth model.
Do Shopify Plus agencies handle PPC?
Some do; many don't. A dedicated Shopify Plus PPC agency runs Google Shopping, Search, and Meta ads tied to ROAS. Design-led or development-only agencies usually don't, so if paid acquisition matters, choose a full-service agency like Webrex that handles PPC alongside everything else.
How do I choose a Shopify Plus agency partner?
Match the agency to your biggest gap, confirm they're a verified Shopify Plus partner, ask to see real revenue results (not just pretty screenshots), check whether they cover the channels you need under one roof, and start with a small paid scope or audit before signing a long contract.
The bottom line
The best Shopify Plus agency is the one that covers the areas you're weakest in, ties its work to revenue, and fits your budget, not just the biggest name in a directory. If you want premium creative or a large enterprise migration, several agencies on this list are excellent. If you want full-funnel growth, development, SEO, ads, CRO, and email, from one accountable team at an accessible price, that's exactly what we built Webrex to do.
Book a free Shopify store audit, and we'll show you the highest-impact growth moves for your store before you commit to anything.
