Running a Shopify store can get weirdly overwhelming. You tweak one section, fix a font, move a block, and suddenly the whole page feels off. It’s like you’re too close to it, staring at the same layout for so long that you stop seeing what’s actually happening. That’s usually when people think, okay, maybe it’s time to let someone else take a look.
A theme agency doesn’t jump in to make everything flashy. Most of the time, they just help the store feel… normal again. Faster pages. Cleaner layouts. Fewer “why is this broken?” moments. They notice stuff you’ve been ignoring for months. Maybe they rebuild a part of the theme. Maybe they clean up the code or add something custom because the default options just aren’t cutting it. It’s usually not dramatic. It’s more like smoothing out the rough edges so the whole thing finally works the way you wanted in the first place. And when everything loads properly on every device, you get this quiet “oh, thank god” feeling you didn’t know you were waiting for.
Try Extuitive and See How Fast You Can Test Ideas
At Extuitive, our platform is built to help Shopify brands understand how their ads might perform before spending money on them. The app uses AI agents that behave a bit like real shoppers, so ad ideas can be tested quickly and in a more realistic way. Once the platform connects to a Shopify store, it pulls in product and customer data and uses that information to predict how different audiences might react to each message or creative. The goal is to give clear, practical insights without turning the process into something complicated.
Alongside ad testing, our platform also supports the store itself. The app can help with theme adjustments, layout fixes, and even full theme development when a store needs a cleaner setup. These tools focus on everyday tasks like improving sections, smoothing out small issues, or building features that match how the store actually works. Since our platform already works with store data, having theme support inside the same system keeps everything simpler and more connected for Shopify brands.
1. Mgroup
Mgroup works as a Shopify theme development agency that keeps stores clean and stable. Most of their work revolves around building custom themes, improving existing setups, and fixing the small things that drag a store down. Sometimes that means cleaning up messy layouts. Other times it’s creating new sections when the default theme is too limited. They stay involved long term, so updates don’t turn into another rebuild.
Their team handles a wide mix of Shopify tasks, but theme work sits at the core. They start from scratch when needed, or they adjust smaller parts of a store when the structure feels off. Mgroup also covers migrations, app work, and branding, which helps when a store needs more than design changes. The goal stays the same: make the theme solid, predictable, and easier to manage as the store grows.
Key Highlights:
- Custom Shopify theme development
- Theme fixes and layout improvements
- Long term support for Shopify and Shopify Plus
- Branding, CRO, and technical help
- Ability to handle headless setups
Services:
- Shopify theme development
- Theme customization
- Shopify store development
- Custom sections
- Shopify support
- Shopify migration
- App development
- CRO and SEO support
- B2B and wholesale setup
- Headless Shopify development
Contact Information:
- Website: mgroupweb.com
- Address: 13 Trypilska Street, Zhytomyr, Ukraine, 10001
- Phone: +380 (97) 372 525 5
- E-mail: info@mgroupweb.com
- LinkedIn: www.linkedin.com/company/monkeygroup-llc
- Twitter: x.com/MgroupWeb
- Facebook: www.facebook.com/mgroup.dp
- Instagram: www.instagram.com/mgroupweb
2. Charle
Charle works as a Shopify theme development agency that focuses on making stores look cleaner and run smoother. They handle full custom themes from scratch, but they’re also comfortable stepping in for smaller changes when a store only needs a few adjustments. Most of their work centers on layout shaping, user flow, and creating theme features that match the brand instead of forcing the brand into a generic template.
Key Highlights:
- Custom Shopify theme development
- Theme updates for new and existing stores
- Support for custom and template builds
- Clear process from start to finish
Services:
- Shopify theme development
- Theme customization
- Shopify store builds
- CRO and UX improvements
- Shopify migrations
- Ongoing theme support
- App and integration setup
Contact Information:
- Website: www.charleagency.com
- Address: Charle NYC, 16 East 34th Street, New York, NY 10016, USA
- Phone: +1 929-999-5018
- E-mail: hello@charleagency.com
- LinkedIn: www.linkedin.com/company/wearecharle
- Instagram: www.instagram.com/charleagency
3. From Poland With Dev
From Poland With Dev works as a Shopify theme development agency that keeps things practical. They handle theme design, repairs, and full custom builds. Many of their projects start small, like fixing broken sections or adjusting layouts, but often grow into larger theme work when the store needs a stronger foundation.
They also cover broader Shopify tasks like migrations, app work, and technical integrations. This helps them support stores long term without jumping between different teams. Their workflow is straightforward: understand the issue, plan the steps, build carefully, and stay available when something needs adjusting later. Their themes are usually simple to manage and stable enough to grow with the store.
Key Highlights:
- Custom Shopify theme development
- Support for Shopify 2.0 and Shopify Plus
- Clear planning and steady communication
- Experience with deeper technical setups
Services:
- Theme design and development
- Theme customization
- Custom apps
- Integrations
- Migrations
- CRO and SEO support
- UX and UI design
Contact Information:
- Website: frompolandwithdev.com
- Address: Czysta 10/5, Kraków, Poland
- Phone: +48 728 955 656
- E-mail: hello@frompolandwithdev.com
- LinkedIn: www.linkedin.com/company/frompolandwithdev
- Facebook: www.facebook.com/frompolandwithdev
- Instagram: www.instagram.com/frompolandwithdev
4. MM Shopy Devs
MM Shopy Devs works as a Shopify theme development agency that spends most of its time shaping layouts and fixing theme issues. Some projects start with simple edits, while others turn into full custom themes when the store needs something stronger than a standard template. They focus on keeping the store usable across all devices and removing the friction that comes from outdated theme setups.
They also help brands move to Shopify or build a store from scratch. Their workflow is practical and steady. Plan the changes, build the needed pieces, test everything, and fix any issues that show up after launch. They handle visual adjustments as well as deeper code work, so the store doesn’t need multiple teams to stay functional.
Key Highlights:
- Custom Shopify theme development
- Improvements for existing themes
- Shopify Plus support
- Experience with full custom builds
- Support with migrations
Services:
- Custom theme development
- Theme customization
- Shopify store setup
- Shopify migrations
- UX and UI improvements
- Ongoing support
- App configuration and integrations
Contact Information:
- Website: mmshopydevs.com
- E-mail: info@mmshopydevs.com
- LinkedIn: www.linkedin.com/company/mmshopydevs
- Facebook: www.facebook.com/MMShopyDevs
- Instagram: www.instagram.com/mm.shopydevs
5. Liquify
Liquify works as a Shopify theme development agency that handles everything from small theme fixes to full store redesigns. Their team focuses on making stores load fast and feel simpler to use. They often take on projects where the theme has become messy or outdated and needs more than basic edits to feel stable again.
They also work on deeper builds like Shopify Plus, custom features, migrations, and ongoing support. A lot of their work involves cleaning up old code and helping stores move from outdated themes to something more flexible. Their goal is always to keep the store functional without adding extra complexity that becomes a problem later.
Key Highlights:
- Custom Shopify theme development
- Full redesigns and targeted fixes
- Shopify Plus support
Services:
- Custom theme development
- Theme tweaks
- Full store redesigns
- Shopify migrations
- Custom app development
- Monthly retainers
Contact Information:
- Website: liquify.design
- Email: hello@liquify.design
6. On Tap
On Tap works as a Shopify theme development agency that focuses on building and improving themes for stores that want a more stable setup. They manage full builds, theme upgrades, and custom features when the store outgrows what a standard theme can offer. Their process usually starts with reviewing what’s not working today and planning how to improve it.
Key Highlights:
- Theme development for new and existing stores
- UX and UI improvements
- Support for B2C and B2B setups
- Headless Shopify builds
Services:
- Shopify theme development
- Theme customization
- Theme audits
- UX and UI design
- Headless builds
- Maintenance
- Integration setup
- Shopify migration
Contact Information:
- Website: www.ontapgroup.com
- Address: 2450 Colorado Ave, Suite 100E, Santa Monica, CA 90404.
- Phone: 424-344-4281
- E-mail: hello@ontapgroup.com
- LinkedIn: www.linkedin.com/company/on-tap
- Twitter: x.com/ontapgroup
7. Whidegroup
Whidegroup works as a Shopify theme development agency that builds new themes and improves existing ones. They focus on simple layouts and themes that are easy for store owners to manage long term. Their projects usually start by understanding what the store needs, then turning that plan into a theme that loads quickly and works reliably.
They handle theme customizations, migrations, headless setups, and performance improvements. They can also take static designs and turn them into Shopify themes. Their style is straightforward: fix what’s broken, improve what’s clunky, and keep the store stable without adding extra layers.
Key Highlights:
- Custom Shopify theme development
- Third party theme customization
- Support for headless storefronts
- Theme migration help
- Performance and UX improvements
Services:
- Custom Shopify theme development
- Theme customization
- Headless storefront creation
- Shopify migration
- Performance optimization
- Design to theme conversion
Contact Information:
- Website: whidegroup.com
- Address: 193 Sobornyi Ave, Zaporizhzhia, Ukraine
- Phone: +1 646 941 7789
- E-mail: contact@whidegroup.com
- LinkedIn: www.linkedin.com/company/whidegroup
- Facebook: www.facebook.com/whidegroup
- Twitter: x.com/whidegroup
- Instagram: www.instagram.com/whidegroup
8. Haydon Power
Haydon Power works as a Shopify theme development agency that builds and rebuilds themes with a focus on clarity and simplicity. Some projects involve full custom themes, while others start with small changes to fix navigation or improve layouts. They try to understand what the store is missing before shaping the design.
They also stay involved after launch, helping with UX tweaks, technical fixes, and adjustments that come up as the store grows. Their work covers development, migrations, theme updates, and reviews. The main goal is to keep the theme stable so the store owner doesn’t have to worry about unexpected issues.
Key Highlights:
- Shopify theme development for new and existing stores
- Custom builds and template edits
- UX and UI support
- Ongoing technical help
- Support for migrations
Services:
- Shopify theme development
- Theme customization
- Custom development
- Shopify Plus support
- UX and UI design
- Reviews and audits
- Technical support
- Store migrations
Contact Information:
- Website: haydonpower.co.uk
- Phone: 0121 751 1163
- E-mail: info@haydonpower.co.uk
9. Revamp Consulting
Revamp Consulting works as a Shopify theme development agency that improves how stores look and function. They handle new themes, redesigns, and layout adjustments when the structure is messy or outdated. Their work usually begins with understanding how customers move through the store, then making the design simpler and easier to follow.
Their team handles design, development, performance adjustments, and store setup. They also work with integrations and migrations when a store needs more than visual updates. After launch, they continue with updates and smaller fixes to keep the store stable.
Key Highlights:
- Shopify theme development and redesign
- Customization of existing themes
- UX and navigation improvements
- Support with integrations
- Ongoing updates
Services:
- Shopify theme development
- Theme customization
- Store setup
- Performance adjustments
- UX and UI improvements
- App and plugin integrations
- Post launch support
Contact Information:
- Website: www.revampco.com
- LinkedIn: www.linkedin.com/company/revamp-consulting
- Facebook: www.facebook.com/Revamp.IT.Consulting
10. DigitalSuits
DigitalSuits works as a Shopify theme development agency that steps in when a store needs more flexibility than a standard template. They build themes from scratch, but they also fix existing themes that feel limited or slow. They usually start by figuring out how the store should feel and how people move through it.
They handle both design and code, which helps when a project needs visuals and technical adjustments. Their work includes theme customization, performance tuning, app integrations, and long term support. They aim to keep the theme clean and manageable so store owners don’t feel overwhelmed.
Key Highlights:
- Custom Shopify theme development
- Adjustments for existing stores
- Long term theme care
Services:
- Custom theme development
- Theme customization
- Shopify web design
- Functionality enhancements
Contact Information:
- Website: digitalsuits.co
- Address: 78 SW 7th St, Miami, FL 33130
- Phone: (512) 571 3557
- E-mail: hello@digitalsuits.co
- LinkedIn: www.linkedin.com/company/digitalsuits
- Facebook: www.facebook.com/DigitalSuitsAgency
11. Vsourz Digital
Vsourz Digital works as a Shopify theme development agency that builds and adapts themes for stores that want a cleaner or more predictable structure. Their work usually sits between design and development. They review how a store functions, then reshape the layout or build a new theme when the old one becomes too limited. Also handle custom features, mobile responsive edits, theme improvements, and coding work that goes beyond basic styling. After launch, they stay available to fix issues or add updates. Their goal is simple: build a theme that works smoothly without becoming harder to manage over time.
Key Highlights:
- Shopify theme development
- Layout and design updates
- Mobile friendly improvements
- Custom features
- Ongoing support
Services:
- Custom theme development
- Theme customization
- Mobile responsive layout
- Feature development
- Theme setup
- Support and maintenance
Contact Information:
- Website: www.vsourz.com
- Address: 307 Euston Rd, London NW1 3AD
- Phone: +44 020 3372 5711
- LinkedIn: www.linkedin.com/company/vsourz-agency
- Twitter: x.com/vsourz_agency
- Facebook: www.facebook.com/vsourz.agency
- Instagram: www.instagram.com/vsourz.agency
12. 10SQ
10SQ is a Shopify theme development agency based in Melbourne. They build custom themes from the ground up and help stores that need something more flexible than a standard template. Their work usually begins with conversations about what the brand wants the store to feel like. Once the design direction is set, they turn it into a working theme. They also handle deeper technical tasks like custom features, performance improvements, checkout updates, and app development. Their process is steady: understand the goals, build the features, test the theme, and fix anything that doesn’t behave the same across devices.
Key Highlights:
- Shopify theme development
- Custom features and integrations
- Performance improvements
- Shopify Plus experience
Services:
- Custom Shopify theme development
- Theme customization
- App development
- Checkout adjustments
- Speed optimization
- UX and UI design
- Technical consulting
Contact Information:
- Website: 10sq.dev
- Email: hello@10sq.dev
- Address: 100 Cubitt St, Cremorne, VIC, Australia
- LinkedIn: www.linkedin.com/company/ten-sq
13. Grodas Group
Grodas Group works as a Shopify theme development agency that builds themes based on the brand’s design ideas. Some projects are small updates, while others turn into full theme builds when the store needs a stronger structure. They keep the workflow simple so store owners always know what’s happening.
They also handle theme setup, fixes, and ongoing support. This includes adding custom sections, improving layouts, adjusting usability, and fixing bugs before launch. Their QA team checks the theme before release, and the company stays available afterward for updates or small fixes that show up later.
Key Highlights:
- Shopify theme development based on client designs
- Theme customization and layout updates
- UX and navigation improvements
- QA testing
- Ongoing support
Services:
- Custom Shopify theme development
- Theme setup and customization
- Design to theme conversion
- Performance and UX improvements
- Bug fixes
- Maintenance
Contact Information:
- Website: grodasgroup.com
- Address: 1E 2nd Street, New York, USA
- Phone: +1 647 562 3520
- E-mail: info@grodasgroup.com
14. Elogic
Elogic works as a Shopify theme development agency that focuses on building clean, easy to manage themes. Their work often starts with understanding what the store needs, then shaping a plan for how the theme should look and behave. Some projects involve full custom themes. Others focus on improving an existing one so it’s faster and easier to use.
They also help with migrations, layout adjustments, performance fixes, and app integrations. Before launch, they test the theme on different devices to catch any problems early. After launch, they stay available for support or small updates as the store continues to grow.
Key Highlights:
- Shopify theme development for new and existing stores
- UI and UX updates
- Performance improvements
- Support for migrations and integrations
Services:
- Custom Shopify theme development
- Theme customization
- Responsive theme work
- UX and UI design
- Performance optimization
- Shopify migrations
- Maintenance and updates
- App integration
Contact Information:
- Website: elogic.co
- Address: 175 Pearl Street Dumbo, New York, NY 11201
- Phone: +1 512 539 0265
- E-mail: sales@elogic.co
- LinkedIn: www.linkedin.com/company/elogic-commerce
- Facebook: www.facebook.com/elogic.commerce
- Instagram: www.instagram.com/elogic.commerce
Conclusion
Some Shopify themes look fine at a glance, but once you work with them every day, you start noticing the problems. A slow page. A stubborn section. A layout that shifts for no reason. After enough of those moments, it’s easy to feel stuck.
That’s where a theme development agency helps. Not by making everything flashy or complicated, but by giving the store a stable base again. When the theme is solid, updates don’t break things. New products slot in without chaos. The store feels lighter. You stop holding your breath every time you click Save.
And honestly, handing the technical stuff to people who know exactly what they’re doing makes life a lot easier. It frees you up to focus on your products, your customers, and all the things that actually move the business forward.
