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Shopify Agency Directory

The independent directory for finding and comparing verified Shopify agencies worldwide.

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  1. Home
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  3. ›Checkout Upgrade

Shopify Checkout Upgrade Agencies

Your checkout is where the money happens — and where a lot of it leaks away. These agencies specialise in Shopify checkout upgrades, including migration to checkout extensibility, custom checkout UI, post-purchase upsells, and the optimisation work that turns abandoned carts into completed orders.

37 verified agencies matched

D

Developers Capital Net

📍 ST Petersburg, United States

⭐ 5 on Shopify

Under $5,000

🏆 With over 5 years of result-driven experience in 20+ different industries 🌟, we are your trusted partners for all things Shopify. Our specialty is website design & optimization, theme development & customization, and back-end configuration. Reach out to us today!

Store BuildTheme DevelopmentCheckout UpgradeWebsite Audit And Optimization StrategyPerformance
E

Eshop Guide

📍 Bochum, Germany

⭐ 5 on Shopify

Under $5,000

Eshop Guide sind deine Nerds für Shopify-Lösungen, spezialisiert auf Shopaufbau, Migration und Optimierung. Mit unserem Team aus über 45 talentierten Könner, unterstützen wir dich effizient von der ersten Beratung bis zur langfristigen Betreuung deines Shopify Shops.

App DevelopmentCheckout UpgradeTroubleshootingHeadlessOngoing Website Management
S

Shopvert

📍 Dubai, United Arab Emirates

⭐ 5 on Shopify

Shopvert delivers enterprise-level Shopify expertise for growing businesses. We specialize in complex store setups, custom mobile apps, and advanced system integrations. Building scalable, high-performing Shopify solutions tailored for long-term success.

App DevelopmentCheckout UpgradeOngoing Website ManagementWebsite Audit And Optimization StrategyHeadless
I

Innovate Group

📍 Capital Federal, Argentina

⭐ 5 on Shopify

Under $5,000

WHAT WE DO We design and build beautiful eCommerce solutions. We are an expert agency in Shopify & Shopify Plus that covers all stages of design, development, custom theme, implementation & integration with other systems. Contact hello@innovategroup.agency

Checkout UpgradeApp DevelopmentHeadlessProduct And Collection SetupSales Channel Setup
E

ENCYPHERS LLC

📍 New York, United States

⭐ 5 on Shopify

Under $5,000

Let's have a meeting at https://encyphers.com/book-consultation OR Call Us at +1 718 312 8022 We help our clients with -Store Build and Redesign -Store setup and design guidance -Store Migration & POS -Conversion Rate Optimization CRO -SEO & Email Marketing

3D ModellingAnalyticsBanner AdsBusiness Strategy GuidanceCheckout Upgrade
W

Wave Commerce HK

📍 Hong Kong, Hong Kong SAR

⭐ 5 on Shopify

Wave Commerce is a leading Shopify Plus Partner helping brands accelerate their direct-to-consumer (DTC) business and omnichannel integration. We work with fast-growing startups, the world's most recognizable brands, and Fortune 500 enterprises.

AnalyticsBusiness Strategy GuidanceCheckout UpgradeCROApp Development
D

DVISIONMEDIA

📍 Odense SØ, Denmark

⭐ 5 on Shopify

Denmark’s E-commerce & Digital Growth Powerhouse As one of the most recommended Shopify agencies in the Nordics, DVISIONMEDIA is a leading digital growth partner trusted by top brands. - Daily communication. - 100% satisfaction. - Proven methods.

Store BuildMigrationsTheme DevelopmentOngoing Website ManagementCheckout Upgrade
A

Ambaum

📍 Burien, United States

⭐ 5 on Shopify

$5,000 - $25,000

We help drive some of the most complex brands on Shopify. With hands-on experience running brands, we bring deep eCommerce and broad business expertise to Shopify merchants, helping them grow smarter and faster. We don’t just build stores—we build businesses.

Checkout UpgradeApp DevelopmentHeadlessOngoing Website ManagementStore Build
S

SPLIT Development

📍 Kropivnitskiy, Ukraine

⭐ 5 on Shopify

SPLIT Development crafts custom Shopify solutions for e-commerce success. Our team provides unique designs, SEO optimization, and strategies to elevate your brand. Start your journey with us today.

Store BuildTheme DevelopmentMigrationsCheckout UpgradeOngoing Website Management
O

On The Road Agency - Experts

📍 Manchester, London, Leamington Spa

⭐ 5 on Shopify

We're an e-commerce studio for enthusiasts in everything design and development. We mainly help with migration projects and automation, but can help with anythign Shopify related! Based in Manchester, Leamington Spa and London.

MigrationsApp DevelopmentStore BuildCheckout UpgradeTheme Development
V

Vectoriam

📍 Madrid, Spain

⭐ 5 on Shopify

We are a digital consultancy with a specialized development department focused on e-commerce and custom application development, as well as integrations with each company's systems. We have a Senior team with expertise in each area that works collaboratively.

Theme DevelopmentStore BuildHeadlessCheckout UpgradeSystems Integration
D

DTAILS

📍 Copenhagen N, Denmark

⭐ 5 on Shopify

Under $5,000

No need for fancy intros: We're a genuine team doing things right. Having run e-commerce businesses, we only offer advice we'd follow ourselves. Focus? Real results, strong bottom line. Specializing in B2B and complex B2C solutions, prioritizing effectiveness above all

MigrationsB2B CommerceStore BuildCheckout Upgrade
V

Vaulted Oak

📍 New York, United States

⭐ 5 on Shopify

Vaulted Oak develops digital architecture and provides ongoing support & maintenance for Shopify and WordPress. We are part of Barrel Holdings and a closely affiliated sibling agency to Barrel, a leading digital agency focused on direct-to-consumer experience design.

Checkout UpgradeOngoing Website ManagementWebsite Audit And Optimization StrategyTheme DevelopmentMigrations
H

Haydon Power

📍 Stourbridge, United Kingdom

⭐ 5 on Shopify

Haydon Power is a Shopify design, development and conversion rate optimisation agency, specialising in eCommerce solutions. We focus on creating tailored strategies, custom development, and optimised user experiences to help brands grow and thrive online.

Store BuildMigrationsTheme DevelopmentHeadlessCheckout Upgrade
V

VN Studios

📍 CABA, Argentina

⭐ 5 on Shopify

Under $5,000

We are a software agency with more than 15 years of experience working with small and large business owners around the globe to achieve their eCommerce goals.

Checkout UpgradeApp DevelopmentCustom Domain SetupHeadlessMigrations
S

Stride

📍 Malmö, Sweden

⭐ 5 on Shopify

Stride specializes in complex migrations to Shopify Plus for established e-commerce brands. We handle data, integrations and architecture with precision, ensuring a seamless transition and stronger performance post-launch. Built for scalability and long-term growth.

MigrationsStore BuildB2B CommerceApp DevelopmentCheckout Upgrade
W

wecanfly

📍 Wroclaw, Poland

⭐ 5 on Shopify

WeCanFly accelerates enterprise growth on Shopify Plus through expert migrations, conversion-optimized UX, and high-performance headless solutions. Trusted by leading brands to deliver seamless integrations and custom applications that drive measurable ROI.

Business Strategy GuidanceCheckout UpgradeCROApp DevelopmentHeadless
R

Rocket Digital

📍 Barcelona, Spain

⭐ 5 on Shopify

Under $5,000

Independent Marketing, Innovation and Digital Business consultancy. In Rocket Digital, we create experiences, brands and digital products, which impact the users in a positive way; allowing businesses to grow in a sustainable way, and transform digitally.

Checkout UpgradeBanner AdsApp DevelopmentHeadlessStore Settings Configuration
S

SHOP MAESTER

📍 Southampton, United Kingdom

⭐ 5 on Shopify

SHOP MAESTER is a Shopify PLUS Partner Agency dedicated to crafting innovative eCommerce solutions that fuel brand growth. Our expert in-house team excels at migrating complex stores to Shopify! We support the migration from almost 150+ platforms to Shopify / PLUS.

MigrationsTheme DevelopmentOngoing Website ManagementStore BuildCheckout Upgrade
A

Atoms eCommerce

📍 CDMX, Mexico

⭐ 5 on Shopify

Under $5,000

Somos una agencia de comercio omnicanal y uno de los Shopify Plus Partner más importantes en LATAM. Nos enfocamos en amplificar el crecimiento de las marcas en eCommerce y retail a través de la tecnología e implementaciones de soluciones omnicanal.

Checkout UpgradeApp DevelopmentCustom Domain SetupProduct And Collection SetupMigrations
See all 37 agencies →

Why a checkout upgrade matters

Checkout is where sales are won or lost, and it is one of the few areas Shopify Plus lets you customize deeply through checkout extensibility. Upgrade work can add trust, speed, and features to your checkout, or move you off older checkout customizations that Shopify is retiring. A good agency focuses on changes that raise completed orders, not cosmetic tweaks, and tests the results. Even small gains in checkout completion can add up to meaningful revenue.

Tips for getting a checkout upgrade right

  1. Focus on changes that raise completed orders, not just how checkout looks
  2. If you use older checkout customizations, ask how they will migrate you safely
  3. Confirm they can work with checkout extensibility on Shopify Plus
  4. Make sure changes are tested, so you know they actually help
  5. Check mobile checkout closely, since that is where most orders happen

Related Reading

  • The Shopify Checkout Optimization Checklist, 12 Changes That Actually Move the Needle →
  • Shopify Conversion Rate Benchmarks in 2026, Where Does Your Store Actually Stand? →

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Frequently Asked Questions

What is Shopify checkout extensibility?
Checkout extensibility is Shopify's modern framework for customising the checkout experience. It replaces the old checkout.liquid (deprecated in 2025) with app-based extensions that are faster, more secure, and automatically maintained by Shopify. It's available on Shopify Plus.
How much does a checkout upgrade cost?
A basic checkout extensibility migration costs $3,000–$8,000. Custom checkout UI, upsells, trust badges, and advanced logic run $8,000–$25,000+. The investment usually pays back quickly — even a 1% improvement in checkout completion can be worth thousands in monthly revenue.
Do I need Shopify Plus for checkout customisation?
For meaningful checkout customisation, yes. Standard Shopify plans allow limited checkout branding (logo, colours), but custom checkout fields, upsells, conditional logic, and advanced UI changes require Shopify Plus and checkout extensibility.

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