Struggling to grow your online store despite all the work you’ve put in? Hiring a top e-commerce agency might be the game-changer your brand needs.
Building an online store can feel overwhelming. From design and SEO to marketing and conversions, there are too many moving parts for one person to handle effectively.
If you can’t do it all on your own, there’s nothing wrong with getting expert help. The real challenge is choosing the right agency that will actually deliver results for your brand.
But don’t worry; this article highlights the top e-commerce agencies in 2025 that help brands scale through services like Shopify builds, CRO, SEO, paid ads, and design. It also explains why choosing the right agency matters and provides FAQs to guide brands in finding the best partner for growth.
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Take Control of Your Brand’s Growth
From Amazon to Shopify, our agency helps you scale profitably and sustainably.
Why Choosing the Right E-commerce Agency Matters
Building an e-commerce site is far more complicated than it seems. Without the right skills or support, many sellers struggle to launch and manage their stores effectively.
The competition is fierce, with over 28 million online stores fighting for customer attention. If your site doesn’t stand out quickly, shoppers will bounce to a competitor without hesitation.
That’s why choosing the right agency is a make-or-break decision. The right partner fuels growth and profitability, while the wrong one wastes your time, money, and momentum.
Top E-Commerce Agencies to Work With in 2025
With so many “experts” and agencies popping up every day, choosing the right partner can be confusing. That’s why we’ve put together this list of trusted top e-commerce agencies that have a proven track record of helping brands grow.
| Agency | Best For | Key Services |
|---|---|---|
|
My Amazon Guy |
Omnichannel Growth (Amazon, Shopify, DTC) |
Shopify builds, CRO, SEO, email flows, paid ads, site audits |
|
Duck.Design |
Fast, affordable ongoing design support |
Site building, SEO, branding, graphic/motion design, UX/UI |
|
WebFX |
Data-driven e-commerce growth |
Web dev, PPC, SEO, content, CRO, social, reporting |
|
OuterBox |
UX-focused optimization |
UX audits, CRO, analytics, strategic roadmaps, site design |
|
Thrive Agency |
Scaling online sales quickly |
SEO, PPC, content, social media, store performance |
|
Arctic Grey |
Shopify Plus design & development |
Custom Shopify themes, UX design, migrations, store builds |
|
Rocket CRO Lab |
Boosting conversions over traffic volume |
CRO, A/B testing, customer journey analysis, UX/UI improvements |
|
Nuanced Media
|
Shopify expansion |
Advertising management, SEO, listing optimization |
|
Growth Rock |
CRO for plateaued e-commerce brands |
UX research, funnel optimization, A/B testing, behavioral insights |
|
Omnitail |
Profit-focused ad management |
Product feeds, PPC Ads, Google Shopping, paid social/search, CTV |
1. My Amazon Guy
My Amazon Guy is more than just an Amazon growth agency; it’s a full-service partner for brands that want to take control of their e-commerce growth. While we’re known for helping sellers scale on Amazon, we also specialize in building and optimizing independent e-commerce stores that drive long-term sales and customer loyalty.
We focus on giving brands the best of both worlds: marketplace expertise and direct-to-consumer strategies. Whether you’re starting from scratch with Shopify, fixing a site that’s underperforming, or looking for ways to improve retention, our team delivers proven solutions that maximize traffic, boost conversion rates, and strengthen brand control.
Key Services Offered by My Amazon Guy
- Shopify store builds and custom theme development
- Conversion rate optimization (CRO) and A/B testing
- SEO setup and ongoing optimization for long-term growth
- Analytics configuration, reporting, and data insights
- Email marketing flows (Klaviyo), including abandoned cart, post-purchase, and winback campaigns
- Paid ads management across Google, Meta, and more
- Website speed fixes, CRO-driven audits, and UX improvements
- Landing page creation, competitor analysis, and continuous site updates
Why Brands Choose My Amazon Guy
Unlike most agencies that only understand e-commerce or Amazon, My Amazon Guy is one of the few that does both and does it well. We bridge that gap, helping brands grow on marketplaces and direct-to-consumer channels with proven strategies.
Trusted by MacuHealth, Chirp, Chinook Seedery, Death Wish Coffee, Honeywell, and Nestlé, we deliver measurable results and consistent ROI. That’s why brands choose us to scale into 7- and 8-figure growth.
2. Duck.Design
Duck.Design is a full-service design agency that focuses on creating tailored web and graphic design solutions. Their goal is to deliver designs that match diverse business needs, whether for a small business or a large enterprise.
They operate with an “always on” approach through a subscription-based model. Clients can choose fixed monthly rates or opt for a premium plan that even offers same-day design delivery.
Key Services Offered by Duck.Design
- E-commerce web development
- Online store development
- Search engine optimization
- Graphic design and motion graphics
- Brand identity design
- UX/UI design
Why Brands Choose Duck.Design
Businesses choose Duck.Design because of its flexible subscription model and fast turnaround times. It’s especially appealing for companies that need ongoing design support without unpredictable costs.
3. WebFX
Founded in 1996, WebFX is a full-service digital marketing agency with extensive experience in e-commerce and web development. They’ve helped major brands like Subway, Hilton, Verizon, and Fujifilm generate significant online revenue through tailored digital strategies.
WebFX uses a proprietary platform called MarketingCloudFX to collect and analyze marketing data. This approach allows them to make informed decisions and optimize campaigns for better performance and sales results.
Key Services Offered by WebFX
- Web design and development
- Custom e-commerce website development
- E-commerce platform optimization
- Pay-per-click advertising
- Content marketing and SEO
- Social media marketing
- Conversion rate optimization
- Data analysis and reporting
Why Brands Choose WebFX
Brands choose WebFX for their transparent reporting and data-driven strategies. Their expertise in both e-commerce and content marketing helps businesses increase online visibility and drive measurable sales growth.
4. OuterBox
OuterBox is a UX-focused e-commerce agency with offices in Philadelphia, PA, and Rochester, MN. Since 2006, they’ve helped major brands like Paul Evans NY, Leonisa, and BuyAutoParts improve user experience and boost online performance.
The agency relies on data-driven insights from client analytics and extensive user research to identify opportunities for site improvement. They then create strategic roadmaps and collaborate closely with clients to turn site visitors into loyal customers.
Key Services Offered by OuterBox
- UX optimization and site audits
- E-commerce website strategy and design
- Conversion rate optimization
- User research and analytics
- Strategic roadmap development
Why Brands Choose OuterBox
Brands choose OuterBox for its data-driven approach and proven process that delivers measurable results. Their focus on UX and CRO has helped clients increase conversions, reduce bounce rates, and enhance overall customer experience.
5. Thrive Agency
Thrive Agency is a leading e-commerce digital marketing agency focused on helping brands improve search engine visibility and online store performance. They specialize in driving sales through innovative strategies tailored for fast-moving online markets.
With a team of experienced e-commerce growth experts, Thrive Agency has a proven track record of delivering measurable results. For example, they helped a major apparel brand increase sales by 200% in just six months.
Key Services Offered by Thrive Agency
- E-commerce SEO and search optimization
- Pay-per-click advertising
- Content creation and marketing
- Social media management
- Online store performance optimization
Why Brands Choose Thrive Agency
Brands partner with Thrive Agency for their expertise in scaling e-commerce businesses quickly and effectively. Their data-driven strategies and proven results make them a trusted choice for brands looking to boost online sales.
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6. Arctic Grey
Arctic Grey is an award-winning Shopify Plus design and development agency known for creating high-performing online stores. With experience supporting over 1,000 Shopify merchants and helping generate more than $1.5 billion in revenue, they’ve earned a strong reputation in the e-commerce space.
Backed by 28 industry awards and 500+ five-star reviews, Arctic Grey has worked with well-known brands including Ulta Beauty, Sofia Vergara, Forme, and Cellar.com. Their expertise ranges from customizing Shopify themes to building fully optimized stores from scratch.
Key Services Offered by Artic Grey
- Shopify Plus design and development
- Custom Shopify theme creation
- Store migrations and builds
- UX design and optimization
- Ongoing store support and management
Why Brands Choose Arctic Grey
Brands trust Arctic Grey for its proven track record, design innovation, and ability to deliver scalable Shopify solutions. Their work includes standout projects such as building an elegant store for EBY by Sofia Vergara, crafting a sophisticated site for Harvard University, and even designing a fun UX shopping experience for Sesame Street.
7. Rocket CRO Lab
Rocket CRO Lab is a conversion-focused digital agency based in Ukraine that partners with U.S. and international brands to maximize ROI through smarter optimization. Rather than solely driving more traffic or boosting ad spend, Rocket CRO Lab zeroes in on improving conversion rates to ensure every visitor counts.
Their client list includes well-known companies such as Recreation Outfitters, NovaKid, Zarely, and Labodet. By helping brands capture more value from existing traffic, Rocket CRO Lab positions itself as a cost-effective solution for sustainable e-commerce growth.
Key Services Offered by Rocket CRO Lab
- Conversion rate optimization
- UX and UI improvement
- Data-driven A/B testing
- Customer journey analysis
- Website performance optimization
Why Brands Choose Rocket CRO Lab
Businesses choose Rocket CRO Lab because they prioritize turning website visitors into paying customers. Their approach reduces wasted ad spend and focuses on measurable improvements, making them an ideal partner for brands seeking long-term profitability.
8. Nuanced Media
Nuanced Media is a top-rated e-commerce agency that helps brands grow through tailored online marketing and growth strategies. Their team specializes in optimizing websites, storefronts, and digital campaigns to improve traffic, conversions, and customer engagement.
They are a strong fit for brands on Shopify and other platforms, with proven results in industries like CPG, health, beauty, and consumer electronics. Their expertise ensures businesses can scale effectively while building a strong online presence.
Key Services Offered by Nuanced Media
- E-commerce SEO and keyword optimization
- Storefront and website strategy
- Conversion rate optimization
- Content and campaign development
- Paid media management
Why Brands Choose Nuanced Media
Brands work with Nuanced Media because of their tailored strategies and deep category knowledge. Their approach helps businesses strengthen visibility, increase sales, and scale profitably in competitive online markets.
9. Growth Rock
Growth Rock is a specialized conversion rate optimization agency that helps e-commerce businesses maximize website performance through in-depth UX research, A/B testing, and behavioral analytics. Their data-driven approach ensures that design and content changes are backed by real customer insights.
With their proprietary Purpose Framework, they turn both qualitative and quantitative findings into strategies that drive measurable growth. Growth Rock is especially valuable for e-commerce brands hitting a growth plateau and looking for scalable optimization solutions.
Key Services Offered by Growth Rock
- Conversion rate optimization
- UX and behavioral testing
- A/B testing
- Funnel optimization
Why Brands Choose Growth Rock
Brands choose Growth Rock for their sharp focus on CRO and their ability to create high-converting site experiences rooted in user behavior. Their strategies help fashion, supplement, and tech companies unlock new levels of growth without relying solely on more ad spend.
10. Omnitail
Omnitail is a profit-focused e-commerce marketing agency that helps businesses grow through tailored optimization strategies. Their approach centers on driving measurable revenue while maintaining strong ROI for their clients.
With expertise across multiple platforms, Omnitail offers a mix of advertising, product feed management, and creative solutions to help brands succeed in competitive online markets. They are especially well-suited for companies looking for a data-driven partner to scale profitably.
Key Services Offered by Omnitail
- Product feed optimization
- Ads management
- Google Shopping
- Paid search and display
- Paid social campaigns
- Programmatic & CTV advertising
- Creative services
- Shopify integration
Why Brands Choose Omnitail
Businesses turn to Omnitail for its strong focus on profitability and transparency in results. Their strategies help brands cut wasted ad spend, improve campaign efficiency, and achieve consistent revenue growth.
Frequently Asked Questions
Choosing the Right Partner for Your E-commerce Growth
Building and managing an e-commerce site involves too many moving parts for one person to handle alone. That’s why many brands turn to agencies to streamline growth and avoid costly mistakes.
The key is choosing a top e-commerce agency that can actually deliver results and help you scale profitably. With this list, we hope you find the right partner to guide your brand toward long-term success.
Looking for the best e-commerce agency to build, optimize, and scale your online store? Contact My Amazon Guy today and let our experts help you boost sales, improve retention, and take full control of your brand.
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