9 Best Ecommerce Marketing Agencies for Paid Ads in 2025

If you run an ecommerce brand, you’ve probably felt the pinch of organic reach dropping and competition rising.

Scaling purely through word of mouth or organic content is getting harder by the day. Managing paid marketing in-house also becomes increasingly difficult as channels get more complex, creative demands grow, and attribution stays murky. That’s why paid advertising is no longer a marketing option. And when it gets too heavy to manage internally, partnering with the right ecommerce marketing agency can be the smartest next step.

But here’s the thing: paid growth strategy for ecommerce brands is different from other niches, especially when your competitors are pushing hard with full-funnel campaigns, seamless landing pages, and creative that actually converts.

If you’ve hit a plateau — or worse, your ads are bleeding cash — then you’re not alone. Most Shopify and WooCommerce stores reach a point where they need a partner who is an expert at ecommerce performance marketing. That’s where ecommerce marketing agencies come in. They blend creative chops, media buying expertise, and data fluency to help you grow profitably without the trial-and-error phase that costs you months of momentum.

But the real question is: where do we find such e-commerce marketing agencies for paid ads?

We have created this listicle specifically to answer this question of yours. This guide covers:

• Basics of ecommerce marketing.
• Responsibilities of an ecommerce marketing agency.
• Top ecommerce performance marketing agencies.
• Top agencies for other ecommerce marketing channels.
• Benefits of working with an ecommerce performance marketing agency.
• Pitfalls to avoid.

What is ecommerce marketing?

Ecommerce marketing is everything you do to attract visitors to your online store, turn them into customers, and keep them coming back. It’s the bridge between having a great product and actually getting it into people’s hands at scale.

There’s no single “right” channel. The best ecommerce brands build a mix based on their audience, product type, and price point. Here are the most common:

The trick is focusing on the 2–3 channels that drive actual results for your brand and product.

5 Cs of ecommerce marketing

If you’re building a strategy from the ground up (or refining an existing one), the 5 Cs are a helpful framework:

1. Customer – Who are you selling to? What do they need, want, and care about? Every tactic starts here.
2. Content – The messaging and assets you use to attract, educate, and convert (think ad creatives, product pages, emails).
3. Channel – Where your marketing happens—social, search, email, etc. Choose based on where your customers actually spend time.
4. Conversion – Getting people to take action—add to cart, checkout, sign up. This involves CRO, landing pages, and offers.
5. Continuity – Building long-term relationships with customers through retention campaigns, subscriptions, and loyalty loops.

And as your brand grows, so does the need for specialized execution. That’s where agencies come in.

What is an ecommerce marketing agency?

As your brand starts to grow, so do the moving pieces. Suddenly, you're not just focused on product and fulfillment — you're juggling paid ads, email flows, conversion rates, creative testing, and figuring out which channel is actually bringing in profitable customers. That’s where ecommerce marketing agencies come in.

But here’s the catch: not all ecommerce agencies do the same thing. In fact, the type of agency you hire usually depends on where you're investing your marketing energy.

Some brands go all in on Google and Meta, others rely heavily on email and SMS, and some need help just making their website convert better. So naturally, ecommerce agencies tend to specialize in different areas:

Each of these plays a unique role in the ecommerce ecosystem.

But in this blog, we’re mostly going deep on performance marketing agencies. These are the ones helping you scale your paid ads across Meta, Google, TikTok, and more. If you're spending real dollars on paid media and need a partner to help you grow profitably, this is where you’ll want to pay close attention.

That said, we’ll also spotlight a few standout agencies in SEO, CRO, and web development toward the end. Because let’s be honest, paid ads don’t work in a vacuum!

Top ecommerce marketing agencies for paid ads (2025)

1. NP Digital

Founded by Neil Patel, NP Digital blends performance marketing with content and SEO to serve ecommerce brands of all sizes. While they do work with enterprise clients, it also help mid-sized DTC brands scale their paid efforts using custom strategies and a heavy focus on data. With a robust internal team and a structured process, NP Digital is a good fit if you’re looking for a scalable, full-service partner with proven playbooks.

Location: San Diego, CA

Services: Paid search, display, SEO, content, conversion optimization.

Best for: Established ecommerce brands looking to grow across search, shopping, and display with enterprise-level support.

2. Kaya

Kaya is a data-driven ecommerce performance marketing agency built for startups and growing brands that want clear, measurable ROI. Their strength lies in combining full-funnel performance marketing with proprietary AI tools that speed up creative testing, automate reporting, and deliver real-time insights. Unlike traditional agencies, Kaya works as a growth partner with a core team of marketers, strategists, and data scientists who are deeply integrated into your brand’s journey.

They offer full-service campaign management across Google, Meta, TikTok, and more, alongside creative strategy, CRO, and messaging support. Their AI-powered analytics platform and Competitor Ad Intelligence tool or COIN, brings all campaign data and competitor insights into one place. This makes it easier for brands to make fast, data-backed decisions.

When describing Kaya, this is what Kieran Flanagan, the CMO of Zapier, had to say:

This is one of the examples that came up in that LinkedIn thread I really like, it’s a company called Kaya. They’re a startup marketing agency that has AI deeply integrated into how they work.

Kaya’s pricing is startup and SMB-friendly, with no hidden fees or minimum ad spend required. Performance-based pricing is also available for brands ready to scale aggressively with skin in the game. On average, Kaya clients see visible performance improvements within the first 2 weeks of launch.

Location: London, UK (globally available service)

Services: Paid media (Meta, Google, TikTok), creative strategy, landing page optimization, analytics, and reporting.

Best for: Startups and ecommerce brands that want cost-effective, AI-backed performance marketing without bloated retainers or slow ramp-up time.

3. NoGood

NoGood calls itself the “growth squad,” and it’s easy to see why. They're not just media buyers—they're strategists, creatives, and analysts rolled into one. They combine performance marketing with deep channel experimentation, using AI tools to test rapidly and optimize across platforms. Their structure is ideal for ecommerce brands that want more than ads—they want a partner to rethink how growth is built from the ground up.

Location: New York, NY (with hubs in Miami and Los Angeles)

Services: Paid social, SEO, SEM, CRO, content marketing, email & SMS.

Best for: Ecommerce teams looking for full-funnel growth strategy and fast iteration across performance and content.

4. Avex

Avex is where high-end design meets performance. They specialize in ecommerce for luxury, fashion, and lifestyle brands—and their work reflects that aesthetic. If you're looking for an agency that understands how to pair premium branding with results-driven campaigns, Avex hits the mark. They offer full-site development and CRO in addition to running paid ads, which makes them a strong pick for brands going through a full digital refresh.

Location: New York, NY

Services: Paid media, Shopify Plus development, UX/UI design, content production.

Best for: Fashion and lifestyle brands that care about premium UX just as much as ROAS.

5. 1Digital

1Digital works primarily with ecommerce brands using Shopify, BigCommerce, and Magento. They’re technical marketers at heart with a strong knack for back-end optimization, search marketing, and performance tracking. If you’re a brand with a complex product catalog, custom backend needs, or a hybrid B2B/B2C model, this team knows how to navigate that.

Location: Philadelphia, PA

Services: Paid advertising, SEO, web design, CRO, migration.

Best for: Mid-sized brands that need a hybrid of performance marketing and technical ecommerce support.

6. Fire&Spark

Fire&Spark takes a “purpose-driven” approach to ecommerce marketing, combining SEO and content with digital PR and ethical branding. While their strength is in organic growth, they also offer paid media services, which makes them a good hybrid option. Their team focuses heavily on storytelling, values-led marketing, and sustainable tactics—ideal if your brand has a strong mission or positioning that you want to highlight.

Location: Boston, MA

Services: SEO, content strategy, digital PR, paid search.

Best for: Mission-driven ecommerce brands looking to grow with a blend of SEO, PR, and paid.

7. Upgrow

Upgrow is a conversion-obsessed agency that blends UX, analytics, and paid media under one roof. Their team is small but execution-focused, which makes them perfect for brands that want to test quickly and optimize relentlessly. Their services lean toward the analytical side of ecommerce marketing—building custom dashboards, refining user journeys, and pushing for incremental gains in ROAS and conversion rate.

Location: San Francisco, CA

Services: Paid search and social, SEO, landing pages, CRO.

Best for: Ecommerce brands that are analytically mature and ready to scale performance through iterative testing.

8. Growthbuster

Growthbuster is a lean performance shop focused on scrappy DTC brands that want to grow without hiring a massive team. They specialize in paid social and UGC-driven creative strategy—often helping brands punch above their weight by optimizing spend, simplifying offers, and dialing in creative hooks. If you're looking for a flexible, founder-friendly agency that will test fast and keep things lean, this one’s for you.

Location: Remote (USA-based team)

Services: Meta, Google, and TikTok ads, creative strategy, funnel mapping, and landing page consulting.

Best for: Early-stage DTC brands looking for scrappy performance gains and creative iteration without fluff.

9. Right Side Up

Right Side Up is a collective of seasoned marketers who plug into your team on a fractional basis. Unlike traditional agencies, they don’t use junior account managers or cookie-cutter strategies. Instead, they hand-match ecommerce brands with senior talent—whether that’s a paid media lead, a retention marketer, or a creative strategist. This structure gives you high-level strategy without long-term commitments or bloated retainers.

Location: San Francisco, CA (remote team across the U.S.)

Services: Paid media, lifecycle marketing, analytics, strategy.

Best for: Growing brands that want flexible access to senior talent across paid, lifecycle, and analytics.

Top ecommerce agencies for other marketing channels

SEO agencies for ecommerce

1. Victorious
   • Location: San Francisco, CA
   • Services: Ecommerce SEO, technical audits, link building, content strategy
   • Best for: Brands that want to dominate category and product keywords with a dedicated SEO partner
2. Fire&Spark
   • Location: Boston, MA
   • Services: SEO, content strategy, digital PR
   • Best for: Purpose-led brands that want SEO to amplify their brand mission and storytelling
3. SEOBrand
   • Location: Boca Raton, FL
   • Services: Technical SEO, ecommerce SEO, link building, analytics
   • Best for: Ecommerce sites with complex architecture or large product catalogs needing custom SEO
4. OuterBox
   • Location: Akron, OH
   • Services: Ecommerce SEO, paid search, analytics, UX optimization
   • Best for: Established ecommerce brands seeking full-stack SEO paired with conversion—focused insights

CRO agencies for ecommerce

1. The Good
   • Location: Portland, OR
   • Services: Conversion audits, A/B testing, UX strategy, behavioral analysis
   • Best for: DTC brands with solid traffic who need to turn more clicks into revenue
2. ConvertCart
   • Location: Newark, NJ
   • Services: CRO strategy, multivariate testing, funnel optimization
   • Best for: Mid- to large-scale brands looking to improve conversion rates across PDPs and checkout flows
3. Invesp
   • Location: Chicago, IL
   • Services: Conversion optimization, landing page design, testing roadmap
   • Best for: Brands that want a dedicated CRO partner with deep testing methodology
4. SplitBase
   • Location: Montreal, QC
   • Services: A/B testing, user research, landing page design, CRO strategy
   • Best for: Luxury and high-AOV ecommerce brands that need CRO with a creative edge

Website development agencies for ecommerce

1. Tako Agency
   • Location: Dallas, TX
   • Services: Shopify development, custom storefronts, CRO, email integrations
   • Best for: Fast-growing Shopify brands that need agile dev support and conversion-focused design
2. Coalition Technologies
   • Location: Los Angeles, CA
   • Services: Web development, SEO, PPC, design for ecommerce
   • Best for: Ecommerce businesses seeking a full-service dev agency with deep marketing expertise
3. Eastside Co
   • Location: Birmingham, UK (with U.S. presence)
   • Services: Shopify Plus builds, internationalization, UX optimization
   • Best for: Scaling brands ready for international expansion or complex Shopify Plus builds

What services do ecommerce performance marketing agencies typically offer?

Once you start talking to agencies, you'll realize they all package things a little differently. Some offer just media buying, while others bundle in creative, CRO, email, and even analytics support. But no matter how they frame it, there are a few core services that most paid ad-focused ecommerce marketing agencies offer:

Paid advertising across key platforms

This is the heart of what a performance marketing agency does. They run full-funnel campaigns across:

• Meta Ads (Facebook & Instagram)
• Google Ads (Search, Shopping, Performance Max, YouTube)
• TikTok Ads
• Pinterest Ads (especially for home, fashion, beauty brands)
• YouTube Ads (for top-of-funnel or branded search)

They launch ads, manage budgets, optimize creative, and scale what works while trimming what doesn’t.

Retargeting and remarketing

A good chunk of conversions comes from people who didn’t buy the first time. Performance marketing agencies set up retargeting flows that bring these visitors back using platform pixels, email triggers, and dynamic product ads. This is especially critical for brands with high AOV (Average Order Value) or longer decision cycles.

Creative strategy and ad production

You need more than just UGC or product shots to win. Great agencies help you test new angles, formats, and hooks—then iterate based on performance. Some will handle full creative production (video, statics, GIFs), while others will collaborate with your in-house or freelance teams.

Landing page strategy and Conversion rate optimization (CRO)

Landing pages play a huge role when it comes to ecommerce conversion. No matter how good your ads are, if your audience doesn’t like the page they are landing on, they won’t convert. This is why many performance marketing agencies offer landing page services. Some will design and build pages specifically for paid campaigns, especially if your main PDPs aren’t converting well. This might include A/B testing, heatmaps, customer journey analysis, or just rewriting headlines and CTAs that better match the ad. Tools like Replo, Unbounce, or Webflow come into play here.

Attribution and analytics

Modern performance marketing is messy without solid attribution. That’s why many agencies set you up with tools like Triple Whale, Northbeam, or Funnel.io, helping you track spend and performance beyond what Meta or Google report. Some whileglove marketing agencies come with their own stack of innovative analytics tools that make it easier to read and derive insights from technical data for a non-technical person. Using these attribution and analytics tools helps connect the dots between ad spend and LTV or returning customers.

Email & SMS marketing

While not their main focus, some performance agencies offer retention marketing too — setting up your Klaviyo or Postscript flows, campaigns, and segmentation. This is often offered as an add-on or managed by a partner team.

At the end of the day, a strong ecommerce marketing agency should help you bridge the gap between paid acquisition and profitable growth. Whether that’s through better ads, tighter targeting, improved landing pages, or all of the above.

Why hire an ecommerce marketing agency for paid ads?

Although we have hinted this slightly in the intro, it’s totally fine if you wonder, “Can’t I just run my own ads or hire someone in-house?” And the answer is, sure, you can. However, as you start scaling paid ads, things get more complex. It needs more than just boosting posts or launching basic campaigns in Ads Manager.

That’s when having a performance marketing agency starts to make a real difference.

Here’s why most scaling ecommerce brands bring one in.

You need a clear path to profitable growth

Running ads is one thing. Scaling them profitably while maintaining healthy ROAS and CAC is another. Agencies bring tested playbooks, audience data, and performance benchmarks from other brands they work with. As a result, you don’t have to figure it all out from scratch.

Agencies also help you avoid the common “scale trap” — where you increase the budget but your returns don’t follow. A good one will know how to balance prospecting and retargeting, how to time creative refreshes, and how to keep your lifetime value (LTV) rising as Customer acquisition cost (CAC) increases.

You’re spending money but not sure what’s actually working

If you’ve ever looked at your Meta dashboard and thought, “Cool… but is this even accurate?”—you’re not alone. Attribution is murky, and platform-reported ROAS isn’t the full picture.

Agencies often bring in tools like Triple Whale or Northbeam to build a more complete attribution model. They’ll show you not just where sales came from but which campaigns are driving high-LTV customers, what’s hurting the margin, and where you can scale.

You’re short on creative firepower

Many rising ecommerce brands don’t have the luxury to have their own design team. Many rely on freelancers who often come up with unreliable outputs.

On the other hand, a trusted ecommerce marketing agency can help with the ideation, scripting, and production of creative assets like video, static images, and landing pages — or they can plug into your team to help test and iterate quickly. They also use performance data to shape future creative, not just guess what might work.

You’ve hit a plateau

Maybe your Meta ads worked great for a few months, and then suddenly, they stopped. Or your Google Shopping campaigns are getting clicks but not converting. These are common signals that it’s time to bring in outside expertise.

Agencies look at the whole system, i.e. campaign structure, audience overlap, landing page UX, attribution, even your offers, and identify where the bottleneck is.

You need an experienced partner who’s done this before

Agencies (the good ones, at least) have scaled dozens, sometimes hundreds, of ecommerce brands. They’ve worked across verticals like beauty, fashion, fitness, home goods, supplements, and tech accessories. That kind of cross-brand insight helps you run campaigns while avoiding expensive mistakes.

As Shopify’s own guide puts it, hiring the right ecommerce agency often becomes less about outsourcing and more about plugging in a high-leverage growth partner who can help you scale, optimize, and stay ahead of market shifts.

How to choose the right ecommerce performance marketing agency for your brand

Agency recommendations on review platforms and listsicles like this won’t do the job. At the end of the day, you need to do your own research about who can plug into your business, understand your goals, and help you grow without wasting months (or money) figuring things out.

But the problem is that online research is surface-level and makes all these agencies the same. But if you go beyond the home page, the right partner will stand out based on how aligned they are with your brand stage, goals, and internal capabilities.

Here are some signals to follow when choosing the right ecommerce marketing agency:

They will get clear on your ROAS goals

Not all agencies define success the same way. Some will focus on blended ROAS, others on platform-specific metrics, and some will push for aggressive top-line growth even if margins shrink. Before you start agency hunting, get clear on what success looks like for you. Is it 3x+ ROAS? Lower CAC? More returning customers? Make sure any agency you talk to can optimize for that outcome. And the right agencies will make sure that they do the same.

They will choose the right platform mix

Your audience is not available in all channels. Furthermore, your product and price point also dictate your key conversion platform. The agencies will do this research and recommend the best platform mix for you to get started. On the other hand, find an agency that’s not just certified in the platforms but actually has a point of view on which ones will scale your business and why.

They offer creative expertise

Whether by directly creating performance creatives or by consulting your in-house creative team, you should look for agencies that aid you on the creative end. They should have opinions on ad angles, formats, and what’s likely to convert based on your niche.

They report transparently and use tools you trust

Good agencies won’t just show platform dashboards. They’ll bring tools like Triple Whale, Northbeam, or custom GA4 setups that map performance back to real business results. Better agencies will bring their proprietary tools for competitor ad intelligence and AI-powered analytics. They should also cater to your need of staying informed about every single change happening to your ads and how they are impacted.

They offer flexible pricing and contract terms

You don’t need a long-term commitment out of the gate. Because, let’s admit: we will only know that “this is the right one for me” only until we have worked with them for a month. Hence, look for agencies that offer flexible minimums, trial periods, or 90-day sprints. Their pricing model (such as flat fee, % of ad spend, or hybrid) should also make sense for your current and future ad budgets.

They’ve worked with brands in your industry or model

Experience in DTC, subscriptions, or your specific category (like skincare, food, or fashion) shortens the learning curve. You’ll spend less time explaining your business and more time getting traction. Ask what types of brands they’ve helped and at what stage. Look at the case studies on their website, and if you want to go some extra length, reach out to these companies on LinkedIn and ask about their firsthand experience.

Red flags to avoid when hiring an ecommerce performance agency

Not all agencies are built the same. Unfortunately, some look great in the pitch deck and their homepages but fall apart once you're a few weeks into the retainer. Here are the most common red flags to watch for when choosing a paid ad partner for your ecommerce brand.

They communicate poorly or inconsistently

If you’re chasing them for updates, reports, or even basic responses — it’s a no. Good agencies operate like an extension of your team. This means proactive communication, regular check-ins, clear timelines, and accountability when things don’t go as planned.

They don’t show or explain what they’re actually doing

You should never feel like you’re in the dark. If they’re running Meta ads, you should have access to the account. If they’re optimizing campaigns, they should tell you what they’re testing and why.

They rely too heavily on one channel

If the agency only runs Meta ads and never talks about testing Google Shopping or TikTok, even if it might make sense for your product, that’s a red flag.

They don’t iterate creative or offer guidance

If performance drops and the agency blames the algorithm but doesn’t propose new creative angles, hooks, or formats, it means they’re not truly performance-focused. The best agencies are constantly testing and refreshing creatives to stay ahead of fatigue.

They offer fixed strategies with no testing roadmap

A cookie-cutter approach might get you some quick wins, but it won’t scale. Your agency should be able to create custom strategies for you and offer sufficient rationale behind each suggested approach.

They lock you into long-term contracts without flexibility

If you're in the early stages or testing out an agency for the first time, avoid 6 or 12-month commitments. Look for project-based starts, 90-day sprints, or quarterly checkpoints. A rigid contract paired with weak results is the worst-case scenario.

They can’t show past results or relevant experience

Every agency should be able to point to examples of how they’ve helped other ecommerce brands grow. If they can’t even share anonymized results, industry context, or a few campaign wins, they either lack the experience or they’re hiding inconsistent outcomes.

Hire the right ecommerce marketing agency for your brand

Paid ads can change the growth trajectory of your ecommerce brand in both positive and negative ways.

If you’ve got the right mix of creative, data, and execution behind, it will set you for exponential conversion. But if done wrong, it can be a very expensive mistake and cause a permanent dent.

So the challenge isn’t whether performance marketing works. It’s whether you have the right partner to make it work for you.

The best ecommerce marketing agencies don’t just run ads. They bring strategic thinking, cross-platform expertise, and a deep understanding of what it takes to turn traffic into actual revenue. They know when to push budgets, when to test new angles, when to rethink a landing page—and they’re in the trenches with you doing it.

We’ve seen how the right alignment can unlock great results. spotLESS Materials (YC S19) came to us after working with multiple siloed agencies. By facilitating their Google Ads under one cohesive strategy, we helped reduce their overall CAC by 72%. You can read more about spotLESS’s success story here.

At Kaya, we vouch for helping ecommerce brands unlock profitable growth through performance marketing. Whether you're spending $5K/month or scaling past $100K, we build systems that turn paid ads into sustainable engines and show you results in 2 weeks!