Best E-Commerce Marketing Agencies of 2025

Is your e-commerce business ready to seize the moment? After all, with the e-commerce market set to peak at 333.5 million users by 2029 and retail e-commerce on track to reach eight trillion by 2027, you don’t want to miss out.

And you don’t have to.

Partnering with an e-commerce marketing agency can elevate your business to the next level.

An effective e-commerce strategy can be challenging to manage in-house. Your business may lack expertise in digital marketing and running ads, or you might not have the tools to monitor and optimize growth.

Additionally, your team might struggle to keep up with changing trends and technologies, or you may just lack the time to maximize your site’s potential.

An e-commerce marketing agency provides tailored strategies rooted in expertise, improving brand visibility and attracting the right audience to your site.

There’s no shortage of agencies out there, so here’s a list of the best e-commerce marketing companies to help.

Key Takeaways

• E-commerce buyers will reach 333.5 million by 2029, and Statista forecasts worldwide retail e-commerce sales will surpass eight trillion in 2027.
• Partnering with an e-commerce marketing agency can significantly enhance your brand’s online presence while providing the in-house expertise and tools you need to get noticed online.
• An e-commerce marketing agency has the skills to craft customized strategies that align with your business’s specific goals and target audience, ultimately driving better results.
• The e-commerce landscape continuously evolves, so staying updated on the latest trends and technologies is crucial. Agencies can provide insights and strategies tailored to current market dynamics, keeping businesses competitive.
• An agency allows businesses to allocate resources more efficiently and focus on their primary goals.
• Characteristics to look for in an agency include niche expertise, understanding your metrics and KPIs, having a clear customer focus, and being sales and revenue-focused.

NP Digital – Best for Omnichannel E-Commerce Marketing

I may be a bit biased, but I do think my agency, NP Digital,  is one of the best fits for any business’s e-commerce needs. NP Digital offers a full suite of data-driven solutions for omnichannel e-commerce marketing. These include SEO, App Store optimization, paid search and social, branding and content production, and conversion rate optimization.

The agency is a recognized leader and driver of innovation and performance marketing. It has received multiple awards, such as the Best SEO and SEM campaigns.

NP Digital has the technology and structure to drive speed and efficiency, ensuring it can seamlessly adapt to the dynamic shifts in omnichannel e-commerce marketing. To do this, we use some of the key technologies in the field, including Shopify and Magento.

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What sets NP Digital apart is its relentless focus on revenue generation. This focus serves as the lens through which the team approaches problems, carefully analyzing the profitability of each decision. 

NP Digital’s client list includes names like CNN, Adobe, SoFi, Lantern, Western Union, NCSA, Universal Technical Institute, Nexcess, and Tandem Diabetes Care.

Upgrow – Best For Strategic Planning

Upgrow is an e-commerce marketing agency based in San Francisco. The agency offers various services, including e-commerce, SEO, e-commerce store CRO, social media ads, programmatic advertising, web analytics, and design.

The agency can also help with PPC, Amazon, and social media advertising, and content marketing. Other services are landing page design, lead-flow planning, and retention/referral retargeting programs.

They will work with you to build a marketing strategy based on your target customers, their pain points, and your solution. 

They follow a specific e-commerce marketing process focusing on brand discovery, creating a strategic plan, tracking and reporting, and ongoing optimization. They’re one of the few e-commerce agencies that provide complete A-to-Z coverage and optimization. They can design, create, optimize, and promote your e-commerce business. 

Upgrow uses an AI-powered SEO tool to spot problems and provide data-driven solutions. Additionally, Upgrow has a library of Google Ads scripts that automate optimization tasks, increasing efficiency.

Accolades include several awards from Clutch, including Top SEM Agency San Francisco 2023, Top PPC ads, and Top Inbound Marketing Agency.

Upgrow’s client list includes Datastax, OpenSky, and JuniperSquare.

Inflow – Best For Lead Gen

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Inflow is an award-winning e-commerce agency based in Denver.

While other agencies provide A-to-Z support covering design, optimization, and promotion, Inflow focuses exclusively on the marketing and advertising side. They offer SEO, full-service PPC management, paid social and digital marketing consultations, Google tag manager audits, email and SMS marketing, and CRO services.

If you’re looking for an agency to provide marketing and advertising support but can handle the design and creative services yourself, Inflow may be a good fit.

The agency has partnered with pet, B2B e-commerce, health and wellness businesses, and outdoor brands. It creates a custom digital marketing strategy for each client and uses numerous e-commerce platforms, like BigCommerce, WowCommerce, Magento, and Shopify, for the best results.

Accolades include Meta Business Partner, MOZ Recommended Company, and Clutch’s “Top digital marketing company – women-owned 2024.”

Inflow’s client list includes Amazon, Overstock, Moving.com, American Test Kitchen, and Dollar Days.

SingleGrain – Best For Customized Plans

Single Grain focuses on rapid growth and high ROI campaigns.  Services include e-commerce SEO optimization, customer behavior analysis, product page optimization, shopping cart optimization, and abandonment solutions.

The agency offers e-commerce marketing solutions to send more qualified buyers to your site, enhance conversion rates, and boost revenue. 

They start with an e-commerce audit, using analytics tools and the team’s expertise to uncover customer insights, view performance metrics, and refine your e-commerce strategy. 

From there, Single Grain creates a bespoke digital marketing campaign for each client, analyzing their unique circumstances and creating custom strategies on a case-by-case basis. This strategy sounds obvious, but it enables Single Grain to grow its client businesses quickly.

Single Grain also launches paid ad campaigns that concentrate on your most profitable products and find the products that deliver the highest ROI so it can put your advertising budget to the best use.

Additionally, its team will create messaging designed to resonate with your audience. 

The client list includes Cafepress, Alexa, Amazon, Uber, TurboTax, and Bluehost.

1Digital – Best For BigCommerce

1Digital is a full-service agency focusing exclusively on e-commerce optimization and marketing. Its expert team has 50-plus ecommerce experts, developers, migration experts, and digital marketers.

Their focus on e-commerce includes design and development, e-commerce SEO, PPC marketing, social media marketing and advertising, platform and data integration, and CRO. 

The agency uses AI for coding solutions, mockups, and unique images to support creativity and  make it more efficient, but says, “The heart of who we are and our strategy is always in our expert human hands.”

While other agencies focus on a specific e-commerce platform, 1Digital works with various mainstream platforms, including Shopify, Magento, Volusion, WooCommerce, and others: they’re known for their work with BigCommerce, Wix, and Shopify. 

Another bonus of working with this e-commerce marketing agency is there are no long-term contracts.

1Digital clients range from start-ups, to small businesses, and Fortune 500 companies. The client list includes Kate Spade, Hitachi, and the Museum of Fine Arts Boston.

Avex Designs– Best For Shopify Plus

Avex is a boutique creative e-commerce agency based in New York City. It focuses exclusively on e-commerce and works with “high-growth brands with unique needs.”

It designs, builds, and optimizes e-commerce websites for beauty, luxury, lifestyle, and fashion companies. As Shopify Plus Partners, it focuses primarily on optimizing and marketing Shopify websites. 

As an agency, they’re heavily focused on the creative and design side of marketing. They support their clients with data-backed UX design, cutting-edge design, e-commerce optimization, and email marketing.

To help your brand grow globally, Avex uses the power of Shopify Plus to help your store reach new markets with multi-language and multi-currency solutions. It also simplifies international commerce through Shopify Managed Marketers, enabling cross-border sales.

In addition, Avex specializes in headless commerce, separating your front-end design from the back-end system so you can publish content on multiple platforms.

Their team has 50-plus e-commerce experts who focus on serving a specific group of clients in particular niches. This is a good fit for clients specializing in a specific niche — fashion, luxury, or beauty companies are an obvious fit. They may also be a good fit for e-commerce companies with a broad product offering as long as they’re comfortable with the specialization that Avex offers.

Avex’s client list includes O’Neill, Hugo Boss, Tag Heuer, and Cast Jewelry.

SmartSites– Best For Remarketing

SmartSites is a multi-channel digital marketing agency that has launched over 900 websites and generated over $100m in client revenue. Its services include remarketing, web design, PPC advertising, organic SEO, email, SMS, and social media marketing.

They use proven strategies to help you gain more traffic and customers and sell more items. It’s suitable for businesses of all sizes. 

The agency’s certifications include being a HubSpot Certified Partner, Microsoft Advertising Select Partner, Amazon Ads Verified Partner, Klaviyo master champion, Google Partner Premier 2024. Additionally, it has an A plus BBB rating, and it’s ranked among the top three email marketing companies by Goodfirms.

Some niches they work with are retail B2B, small businesses, and home services.

Clients include Agape Health and Wellness, Harlem Grown, and NJ Institute of Technology.

Characteristics of A Great E-Commerce Agency

You know what an e-commerce agency can do for your businesses, but if you’re still unsure, here are some tips to help you find the right fit.

1. In-depth knowledge of your business

Every e-commerce store has its own expectations: its culture, unique jargon, and problems. Your agency should have in-depth knowledge of your customers, your business niche, and the industry.  The more technical or specialized your sector is, the more important it is to have subject matter experts who understand your customers, business, and niche well.

2. Obsessive customer focus

Your agency should focus on helping you serve your customers. It should know your customers as well as you do and understand what’s important to them. For example, Zappos focuses on customer service, Apple on quality, and Walmart on low prices. A great agency understands your business and focus, so it can create offers, content, or ads that appeal to your audience.

3. Sales and revenue-focused

Your agency’s main aim should be generating leads, sales, and revenue rather than building a brand without a long-term revenue plan. Another top focus should be closing the sale and enticing customers to buy. The agency should also find ways to reduce expenses, like shipping or returns while working to consistently lower advertising costs and increase the return on ad spend. 

4. Your agency should understand your metrics and KPIs

Tracking too many metrics leads to information overload and can be overwhelming. A better idea would be to identify the most critical metrics you need to maintain and grow your business and then build on these metrics as required. 

If you’re unsure what your e-commerce agency should be tracking, read my piece on the 15 most essential e-commerce KPIs to track. 

FAQs

What does an e-commerce agency do?

An e-commerce agency uses tactics like PPC, social media, and content marketing to get your e-commerce business noticed online. This leads to more traffic and sales, which in turn grows your business.

How to choose an e-commerce marketing agency?

Your first steps should be reading reviews, testimonials, and word of mouth. 

Next, you’ll want to ensure the agency is a good fit for your niche.

Having a list of goals and understanding how your chosen agency can help you achieve them is also helpful.

Additionally, you’ll want to look for characteristics such as a customer focus and an understanding of what resonates with your audience. Ask for case studies from past clients to confirm this. 

To fuel growth, they should be revenue-focused rather than just brand-building, and able to identify your business’s most important metrics.

Conclusion

E-commerce sales will continue growing, which means more competition for e-commerce businesses. 

If you’re struggling to get customers, partnering with the right e-commerce marketing company can be the difference between failure and success. Choose the right company and your growth skyrockets. Choose the wrong company, and your business takes a giant step backward.

Use this list to identify the pros and cons of the e-commerce company you hire. Invest with the right company, and your business will often scale faster than expected.