The 8 Best Ecommerce Marketing Agencies for Shopify Brands

Earlier this year, I audited the Meta ads account of a brand that had just signed with us.

Their previous agency was putting 70% of the budget into retargeting (ads shown only to people who had already visited the store).

And new customers? Almost nothing was left to reach them.

I'm Brian Cleary, founder of Interlace Digital, a Shopify growth agency in Buffalo, New York. This list is for Shopify store owners and DTC (direct-to-consumer) marketing leads who want a partner that grows the business instead of recycling the same shoppers.

Yes, we're on the list. I'll show you why...and where another agency might suit you better.

TL;DR: The Best Ecommerce Marketing Agencies at a Glance

Here's the short version of which agency fits which kind of brand:

• Interlace Digital is our pick for Shopify brands that want Meta and Google ads, ad creative, and store design handled by a specialized team.
• Common Thread Collective and Tinuiti suit larger brands that want forecasting and measurement built into the service.
• Power Digital, Pilothouse, and Disruptive Advertising cover a wide mix of channels for brands that want one partner across many platforms.
• Coalition Technologies fits brands that want search to lead their growth.
• Eastside Co fits brands that need a new or rebuilt Shopify store before they scale marketing.
• Whichever agency you pick, keep ownership of your ad accounts and judge results by total sales and new customers.

What an Ecommerce Marketing Agency Does for a Shopify Store

An ecommerce marketing agency is an outside team that helps your online store win new customers and sell more to the ones you already have.

The exact mix changes from agency to agency.

Here's what the work usually covers:

• Paid ads: The agency runs your campaigns on Meta (Facebook and Instagram) and Google, from budgets and targeting to daily changes.
• Ad creative: The team makes the images, videos, and copy your ads run on. That often includes UGC (user-generated content), which means short videos filmed by real customers or creators.
• Store design: The agency improves your product pages, landing pages, and offers so more of the people who click end up buying.
• Email marketing: The team sends emails that bring past buyers back for another order.
• Search: Some agencies also handle SEO (search engine optimization), which helps your store show up in Google results without paying for each click.
• Reporting: The agency tracks what your ad spend returns in real sales and tells you what to change next.

The best agencies tie every piece back to one question: is your business making more than it spends?

Here's what that looks like in one of our accounts.

Oxford Pennant, a Buffalo maker of hand-stitched pennants and apparel, had grown to 7 figures. Then its sales flattened.

So what did we do? In the first 60 days, our team scaled its ad spend 5x while keeping it profitable.

The brand reports its yearly online sales growth moved from -7% to +108% within 8 months.

How We Picked the Agencies on This List

I looked for agencies a Shopify or DTC brand could hire today and get real ecommerce experience from day one.

Each agency on the list had to pass 4 checks:

• Ecommerce focus: The agency works with online stores and DTC brands as a core part of its business.
• Channel depth: It runs paid ads, creative, or store work with its own people. Specialists handle each channel.
• Public proof: It shows client results on its own website.
• Clear terms: It explains how it works, whether that's contract length, pricing model, or what happens in the first few months.

I pulled the services and claims below from each agency's own website at the time of writing. They're the agencies' own numbers, so use them as a starting point for your calls.

And yes, I put Interlace Digital first. It's my agency, so read that pick with my bias in mind.

Quick Comparison of the Top Ecommerce Marketing Agencies

The table below shows who each agency suits and what it focuses on:

The Best Ecommerce Marketing Agencies for Shopify and DTC Brands

I gave each agency below the same breakdown, so you can compare them side by side:

1. Interlace Digital

Interlace Digital is a Shopify growth agency based in Buffalo, New York. We run your paid ads, make the ads themselves, and improve the store those ads send people to.

• Best for: Shopify stores and DTC brands with an existing customer base that want profitable, steady growth.
• Services: Meta and Google ads, ad creative and UGC video, Shopify design, Shopify development, email marketing, and SEO.
• What works: Our creative team now produces over 130 new ads a month across our client roster. We plan every account around your margins and measure success by total store sales and new customers.
• Watch-outs: Our focus is Shopify brands. If most of your sales come from Amazon or TikTok Shop, another agency on this list will fit better.

Our ecommerce marketing services for Shopify brands put paid ads, creative, store design, and email in the hands of the same team that builds your growth plan.

2. Common Thread Collective

Common Thread Collective is an ecommerce growth agency in Costa Mesa, California. Its core offer, the Prophit Engine, pairs software with a dedicated strategist who owns your forecast.

• Best for: Established DTC brands that want growth planned around a revenue forecast and margin targets.
• Services: Growth strategy, Meta and Google ad buying, TikTok Shop, ad creative, and incrementality testing, which measures the extra sales your ads create beyond what would have happened anyway.
• What works: The agency says its team's work has added $3 billion in profitable growth. Its site features brands like Liquid Death, Native, and Olukai.
• Watch-outs: Pricing isn't listed on the site. The model is built for brands that plan against a detailed forecast, which can be more than an early-stage store needs.

3. Power Digital

Power Digital is a growth marketing agency with offices in San Diego, New York, Atlanta, and Medellín. It calls itself an AI-native growth marketing agency.

• Best for: Brands that want paid ads, public relations (PR), influencers, SEO, and email from a single partner.
• Services: Paid media, earned media (PR, affiliate, and influencer), owned media (SEO, email, and content), data and measurement, creative, Amazon, and TikTok Shop.
• What works: It pairs channel specialists with in-house tools such as Omega, which it describes as its AI operating system. Its named clients include ASICS and Crocs.
• Watch-outs: The service menu is very wide. I'd ask exactly who will run your ads day to day and how your budget will be split across channels.

4. Tinuiti

Tinuiti is a large media agency that works under the tagline "Love Growth. Hate Waste." It covers commerce, streaming TV, audio, social, and search.

• Best for: Big brands with large budgets across Amazon, TV, and digital channels.
• Services: Amazon and commerce media, streaming and linear TV, Meta and TikTok ads, paid search, SEO, email, creative, and influencer work.
• What works: Its Bliss Point platform connects audience data, creative, media, and measurement. It also runs a smaller program called Foundation for growing brands and startups.
• Watch-outs: Its client list leans toward household names like e.l.f. Beauty and Sony. If you run a smaller Shopify store, ask how much senior attention you'd get.

5. Pilothouse

Pilothouse is a performance marketing agency that says it's built for established, ambitious DTC ecommerce brands. Strategy, creative, and media all sit under one roof.

• Best for: DTC brands that already have traction and want strategy, creative, and ad buying run together.
• Services: Meta, Google, YouTube, TikTok, and Amazon ads, email and text message marketing, conversion optimization, and in-house creative through its Studios team.
• What works: Its pricing mixes monthly retainers with performance incentives. The agency says onboarding usually starts within 5 to 10 business days of signing.
• Watch-outs: The model is designed for brands with sales momentum. A store still chasing its first steady sales may not be the right fit yet.

6. Disruptive Advertising

Disruptive Advertising is a digital marketing agency that works with ecommerce brands as well as software, business-to-business, and local companies.

• Best for: Brands that want a free audit up front and no long-term contract.
• Services: Paid search, paid social, SEO, Amazon, email, conversion optimization, creative, and analytics.
• What works: The site lists 160+ employees. It also offers qualifying brands measurable growth within 90 days or their money back.
• Watch-outs: Ecommerce is one of many industries it serves. Ask how many Shopify brands your account team runs right now and what "qualifying" means for the guarantee.

7. Coalition Technologies

Coalition Technologies is a Los Angeles agency that calls itself "an SEO agency that goes beyond search."

• Best for: Brands that want organic search, including AI search results, to lead their growth.
• Services: SEO, AI search visibility, paid ads, web design and development on Shopify and other platforms, email, and social media.
• What works: It works on month-to-month contracts. The agency also says it puts team work hours in writing in every agreement.
• Watch-outs: Its strongest focus is search. If Meta ads drive most of your growth, I'd want to see its ecommerce results from paid social specifically.

8. Eastside Co

Eastside Co is a Shopify agency that describes itself as one of the world's most trusted and experienced Shopify Plus Partners. Shopify Plus is Shopify's plan for larger, high-volume stores.

• Best for: Brands that need a new or rebuilt Shopify store before they scale their marketing.
• Services: Shopify design, custom development, store migrations, Shopify Plus builds, SEO, paid search, social media, and email.
• What works: The agency says it has over 50 people in-house. Its site also notes that its Wild Deodorant store won a Shopify Commerce Awards prize for Best Custom Product Page.
• Watch-outs: Its strongest work is the build itself. If your store is already solid and you mainly need more customers, a paid ads specialist may get you there faster.

Specialist vs Full-Service Ecommerce Agencies

A full-service agency sells almost every marketing channel under one contract. A specialist goes deep on a few channels for one type of business.

I've run both models.

In our early years, Interlace Digital sold "full-service" digital marketing. That included social media management, which brought in 6 figures in revenue for us.

We dropped it in 2022 anyway. Our team put that energy into ad creative, the work that moves sales for our clients.

Here's how the 2 models compare for a Shopify store:

• Full-service agency: You get one contract and one invoice for every channel. In my experience, a full-service shop is usually great at 1 or 2 of them. The rest often goes to generalists.
• Specialist agency: You get people who do the same job every day for brands like yours. You might need a second partner for channels outside their focus.

Why does that depth matter? It shows up most when results stall.

Niagara Chocolates had been paying a large creative firm an inflated retainer. In 2022, the brand averaged a 0.32 ROAS (return on ad spend).

That's 32 cents in sales for every $1 spent on ads.

Our team audited the old campaigns, then rebuilt the ad creative and copy across Meta and Google. The result? The brand reports its average Facebook ROAS reached 2.1 within 45 days.

Red Flags That Signal the Wrong Agency for Your Store

You can usually spot a bad agency fit inside the first month.

These are the red flags I see most often when we audit a new client's accounts:

• They own your accounts: Your Meta, Google, and Shopify accounts should belong to your business. In Google Ads, Admin access controls who can get into the account, so keep it with your team. On Shopify, agencies work through collaborator accounts that you approve and can remove at any time.
• Retargeting eats the budget: Retargeting has its place. If it takes most of your spend, very few new people are finding your brand.
• The same ads run for months: Ads wear out as the same people see them over and over. If your account looks the same as it did last quarter, nobody is testing.
• Reports only show platform numbers: Meta and Google can both take credit for the same sale, so platform numbers alone can overstate your results.
• They promise results before seeing your data: Nobody can promise a specific return before they've looked at your margins, past sales, and product.
• They never ask about your margins: An agency that doesn't know what each order costs you can't tell a profitable sale from an expensive one.

If a few of these sound familiar, get a second set of eyes on your account.

Our free Facebook ads audit has a media buyer review your live account for wasted spend, tracking gaps, and tired creative. You get a findings report and a 90-day plan to keep, whether you hire us or not.

Questions to Ask Before You Sign With an Ecommerce Agency

A discovery call tells you more than any proposal deck.

Bring these questions and listen for specific answers:

• Who will run my ads and make my creative day to day? A good agency gives you names and roles on the first call.
• How many new ads will you launch each month? Look for a real number and a testing plan behind it.
• What will you report, and how often? Ask to see an anonymized sample report from a current client.
• What does success look like in the first 90 days? A good partner sets targets from your past sales data.
• How long is the contract, and how do I leave? Short terms and a clear exit process show an agency that's confident in its work.

The ad volume question matters more than it sounds.

Sticky Brand was running only static images on Meta when we took over. Adding UGC video ads was part of how the brand reported $729K in revenue from ads in its first 90 days with us.

That kind of output takes a dedicated ad creative team that briefs creators, shoots, and cuts new versions every month.

Frequently Asked Questions (FAQs)

Here are quick answers to the questions brand owners ask most before hiring an agency:

How Much Does an Ecommerce Marketing Agency Cost?

Pricing depends on the agency, the channels you need, and the size of your ad budget. Common setups are a flat monthly retainer, a percentage of ad spend, or a retainer plus performance bonuses.

Your ad budget is paid to Meta or Google on top of the agency fee.

How Long Does It Take to See Results From an Ecommerce Agency?

The first 30 to 90 days usually go toward fixing tracking, testing new ads, and finding what works. Steady, scalable growth tends to take a few more months of consistent testing.

Is an Agency Better Than Hiring an In-House Marketer?

It depends on your budget and how many skills you need. An agency gives you a media buyer, designer, and analyst at once, while one in-house hire usually covers fewer of those skills.

An in-house marketer does get to know your brand more deeply day to day.

What Metrics Should an Ecommerce Agency Report On?

Total store sales, new customers, and what you pay to win each new customer should lead every report. Platform ROAS is useful when it sits next to your blended return, which compares all your revenue to all your ad spend.

When Is the Right Time to Hire an Ecommerce Marketing Agency?

Hire an agency once real customers are buying your product and you can commit a steady ad budget for several months. An agency scales demand that already exists.

Grow Your Shopify Store With Interlace Digital

The best agency fits your stage and shows its work.

Own your accounts.

Judge every partner by total sales.

Interlace Digital is a Shopify growth agency in Buffalo, New York. We help Shopify stores and DTC brands get more customers through Meta and Google ads, fresh ad creative, and store design that turns clicks into orders.

Every plan starts with your numbers. So we spend your budget where it makes you money and report on what your business keeps.

If you want that kind of partner, book a free growth call with our team and find out where your next jump in sales could come from.

Let's build something great together.