Best Shopify Email Marketing Agencies in USA

Finding the best Shopify email marketing agencies can make or break your store’s retention numbers. With so many agencies claiming Klaviyo expertise, strong ROI, and “personalized” campaigns, it gets hard to tell who actually delivers versus who’s just good at marketing themselves.

This list breaks down 10 established Shopify email marketing agency USA options , covering what each one specializes in, their Clutch ratings, past clients, and how to reach them, so you can shortlist the right fit for your brand without digging through ten different websites yourself.

Market Insight: Why Email Marketing Still Matters in 2026?

Source: Statista

Quick Comparison Table: Best Shopify Email Marketing Agencies in USA

List of Best Shopify Email Marketing Agency USA

1. Canesta

Canesta is a full service digital agency known for blending creative design with data driven marketing strategy. Their team focuses on helping e-commerce and lead generation brands build stronger connections with customers through thoughtful, personalized campaigns. Rather than chasing quick wins, they aim to build lasting partnerships that support steady, long term growth.

Email Marketing Services:

• Email newsletters with custom, eye catching designs
• Acquisition emails to turn prospects into first time buyers
• Retention emails that bring past customers back to shop again
• Promotional emails built around segmentation and personalization
• Audience segmentation for targeted, relevant messaging

Agency Snapshot:

2. ControlF5

ControlF5 is a Shopify Plus agency that treats email as part of a bigger growth equation rather than a bolt-on service. Instead of running campaigns in isolation, the team ties email flows directly into the store’s CRO, speed, and conversion work they’re already doing, so welcome series and abandoned cart sequences are backed by a site that’s actually built to convert. Founded by Anurag Pandey and ranked #60 globally on Clutch’s Top-Rated Business Service Providers list for 2025, the agency works with D2C brands across the US, UK, UAE, and Europe.

Email Marketing Services:

• Email flow setup and optimization (welcome series, abandoned cart, win-back)
• Segmentation strategy built alongside broader CRO and AOV work
• Campaign design and copy matched to brand identity
• Integration with subscription, loyalty, and bundling tools to reinforce email-driven retention
• Reporting tied to real outcomes like conversion rate, repeat purchase rate, and AOV lift, not just opens and clicks

Agency Snapshot:

3. Storm Brain

Storm Brain is a San Diego based agency that pairs brand strategy with website design and performance marketing under one roof. The team has picked up multiple Clutch Top 1% agency wins in recent years, reflecting steady recognition in the industry. Their approach leans heavily on data and AI insights to keep campaigns adapting to real customer behavior.

Email Marketing Services:

• List growth and segmentation strategy
• Automated flows and lifecycle sequences
• Campaign creation with structured A/B testing
• Mobile first, conversion focused email design
• Analytics, reporting, and AI driven optimization

Agency Snapshot:

4. One10media

Retention marketing is the whole game for One 10 Media. Working out of Medina, Ohio, this team focuses on 7 to 9 figure DTC brands that want email and SMS to actually pull weight instead of sitting as an afterthought. Their pitch centers on real revenue tracking, not open rates, and they pair that retention work with paid media on Meta and Google.

Email Marketing Services:

• Full email and SMS strategy build and optimization
• List growth through pop ups and sign up flows
• Automation flows including welcome and win back sequences
• Campaign copy, design, and testing of subject lines and send times
• Revenue focused reporting instead of open rate vanity metrics

Agency Snapshot:

5. DIDO Agency

Klaviyo certification sits at the core of what DIDO Agency sells. Rather than pushing paid ads, the pitch here is squeezing more repeat purchases and recovered carts out of a brand’s existing list through email and SMS. Clients stick around for an average of three years, which the agency points to as proof its retention strategies actually hold up.

Email Marketing Services:

• Flow setups and automation optimization using behavioral data
• Campaign management with tailored strategy and design
• Segmentation for more targeted sends
• A/B testing built into ongoing campaigns
• Optimization reporting and content calendar planning

Agency Snapshot:

6. Charle Agency

Charle runs a branch in New York, part of a wider Shopify agency that also operates out of London and Manchester. Their email marketing arm bundles email, SMS, loyalty, and subscriptions into a single retention system built on Klaviyo, aimed at squeezing more lifetime value from customers a brand has already paid to acquire. This sits alongside the agency’s wider Shopify practice, which handles store design, development, and SEO for clients worldwide.

Email Marketing Services:

• Klaviyo powered automation flows for welcome series and cart abandonment
• Customer segmentation by behavior, location, and purchase history
• Email design and copywriting tailored to brand tone
• SMS marketing integrated alongside email campaigns
• Loyalty and subscription integration for deeper retention

Agency Snapshot:

If email isn’t the only channel you’re evaluating agencies for, our roundup of the best Shopify marketing agencies in the USA covers broader growth partners beyond email alone.

7. EastsideCo

Eastside Co pairs email marketing with the rest of its ecommerce work, so campaigns get built alongside the store design and development the agency is known for. As a Klaviyo Platinum Partner, the team focuses heavily on lifecycle automation like welcome series and abandoned cart flows, backing up their strategy with real revenue figures from past client work. London based with offices in New York and Dubai, they serve both D2C and B2B ecommerce brands.

Email Marketing Services:

• Welcome email series designed to build trust with new subscribers
• Abandoned cart sequences with multiple timed follow ups
• Database segmentation by behavior, location, and purchase history
• Branding and design work matched to the client’s website
• A/B testing on subject lines, CTAs, and send timing

Agency Snapshot:

8. Netalico

Netalico sticks to one email platform only, Klaviyo, betting that specializing deeper beats spreading across multiple tools. The agency runs as a fully in house Shopify Plus Premier Partner, meaning nothing gets outsourced to subcontractors. Their email work spans everything from account audits to fully built out flow libraries, aimed at turning one time Shopify buyers into repeat customers.

Email Marketing Services:

• Klaviyo audits and flow reviews for existing accounts
• Welcome, abandoned cart, and browse abandonment automation flows
• Custom email template design matched to brand identity
• SMS marketing setup and integration with existing Klaviyo flows
• Winback and VIP flows for lapsed or high value customers

Agency Snapshot:

9. Domaine

Domaine works at a different scale than most agencies on this list, having launched over 750 Shopify sites and handled more Shopify migrations than nearly anyone in the ecosystem. Email marketing sits under their lifecycle marketing arm, and the agency was named Klaviyo’s Global Agency Partner of the Year for 2025. Their client roster skews toward enterprise and complex brands, spanning fashion, beauty, furniture, and sports categories worldwide.

Email Marketing Services:

• Full service email and SMS program management
• ESP migrations and Klaviyo onboarding and platform setup
• Behavioral triggered automation flows
• Contact acquisition and list growth strategy
• Deliverability monitoring and technical support

Agency Snapshot:

10. Fuel Made

Fuel Made has been Shopify-exclusive since 2010 and was named one of the original 8 Shopify Plus Partners in 2011, so email work here comes from a team that’s spent 15+ years inside the platform rather than treating it as a generic add-on. They hold Klaviyo Master Elite status, a tier reserved for roughly 30 of Klaviyo’s 6,500+ agency partners worldwide, and pair that with Shopify Plus design, development, and CRO for DTC brands doing $5M–$100M+ in revenue. The team is entirely senior-level and US-based, with no interns or outsourcing.

Email Marketing Services:

• Custom lifecycle email strategy built around each store’s customer journey
• Klaviyo flow builds spanning welcome, abandoned cart, browse abandonment, post-purchase, and win-back
• Newsletter and campaign planning, including sale and announcement strategy
• SMS, quizzes, loyalty, referral, and transactional notification setup alongside email
• Continuous A/B testing and data-informed optimization tied to CVR, AOV, and LTV

Agency Snapshot:

Email is just one piece of the puzzle. If you’re looking for partners to handle the whole Shopify build, our breakdown of the top Shopify agencies in the USA is a good next stop.

Conclusion

Every agency on this list approaches email marketing a little differently, some lean on Klaviyo specialization, others fold email into a broader ecommerce offering. What matters most is matching that approach to where your brand actually is right now. Reviewing Clutch ratings and past client work is a good start, but a short discovery call with a Shopify email marketing expert in USA will tell you more than any comparison table.

If you’d rather manage email marketing directly within Shopify instead of hiring an agency, AiTrillion offers an all in one platform combining email, SMS, loyalty rewards, and segmentation in a single dashboard. With a drag and drop editor, ready made templates, and automation for welcome flows and abandoned carts, it’s built to help stores run retention marketing in house.

Book a demo to see how it fits your store.

Frequently asked questions (FAQs)

Question: What are the best Shopify email marketing agencies in the USA?

Answer: Best Shopify email marketing agencies are:

• Canesta
• ControlF5
• Storm Brain
• One10 Media
• DIDO Agency
• Charle Agency
• Eastside Co
• Netalico
• Domaine
• Fuel Made

Question: How do I know if I need an agency versus doing email marketing myself?

Answer: If your list is small, a tool like Klaviyo or AiTrillion can work fine in house. Agencies become worth it once order volume is high enough that segmentation and testing meaningfully move revenue, but your team lacks the bandwidth to manage it.

Question: How much should I expect to pay for Shopify email marketing management?

Answer: Pricing varies by list size and flow complexity. Retainers often start in the low thousands per month and scale up for enterprise accounts. Getting quotes from a few agencies is the best way to gauge a realistic range.

Question: What’s the difference between hiring an agency and using a platform like AiTrillion directly?

Answer: An agency brings strategy and hands on management. A platform like AiTrillion gives your team direct control over campaigns without ongoing agency fees, better suited to stores wanting in house control or faster turnaround.

Question: How long before I see results from a new email setup?

Answer: Abandoned cart and welcome flows generate revenue within the first few weeks. Broader list growth usually takes two to three months to show a clear trend.