If you run an ecommerce brand, you probably already know that customer acquisition is expensive. Ads on Facebook, Instagram, and TikTok can eat up your budget quickly. But what if you could generate 30–40% of your revenue from customers you already have—without spending extra on ads?That’s where Klaviyo comes in. And not just Klaviyo—the real game-changer is working with a Klaviyo marketing agency.These agencies specialize in unlocking the full power of Klaviyo’s email and SMS marketing platform. They don’t just send pretty emails; they build customer journeys that nurture, convert, and keep buyers coming back for more.
Let’s dive into what a Klaviyo marketing agency does, why your ecommerce business needs one, and how to choose the right partner for long-term growth.
What is a Klaviyo Marketing Agency?
A Klaviyo marketing agency is a team of professionals who live and breathe ecommerce lifecycle marketing. Their focus is maximizing Klaviyo’s features—segmentation, automations, A/B testing, and analytics—to boost customer engagement and sales.
Think of it like this: if Klaviyo is a sports car, then a Klaviyo marketing agency is the professional driver that knows how to get the most speed, performance, and mileage out of it.
Why Ecommerce Brands Love Klaviyo
Before we talk agencies, let’s answer the big question: why Klaviyo?
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Integration Power – Works seamlessly with Shopify, WooCommerce, Magento, and BigCommerce.
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Customer Segmentation – Target customers based on purchase behavior, browsing history, and engagement.
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Revenue Attribution – Track exactly how much money each campaign or flow generates.
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Scalability – Whether you’re a startup or 8-figure brand, Klaviyo grows with you.
But here’s the catch—most businesses only scratch the surface of what Klaviyo can do. That’s where an agency steps in.
What Does a Klaviyo Marketing Agency Actually Do?
A lot more than just sending emails. Here’s a breakdown:
1. Account Setup & Migration
Moving from Mailchimp or Omnisend? Agencies handle migrations without data loss, ensuring all lists, tags, and automations are transferred correctly.
2. Automation Flow Creation
Flows are where the magic happens. A Klaviyo marketing agency sets up:
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Welcome flows to convert new subscribers
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Abandoned cart sequences to recover lost revenue
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Browse abandonment flows for window shoppers
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Post-purchase journeys to build loyalty
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Win-back flows to re-engage inactive customers
3. Campaign Strategy & Management
From Black Friday promos to product launches, they manage campaign calendars, create copy, design templates, and analyze performance.
4. Deliverability Optimization
They keep your emails out of the spam folder with proper domain authentication (SPF, DKIM, DMARC) and clean list practices.
5. SMS Marketing Integration
Email + SMS = a powerful one-two punch. Agencies combine both to reach customers on multiple channels.
6. Analytics & Reporting
Monthly breakdowns on open rates, CTR, revenue, and A/B test results—plus clear recommendations for scaling.
Why Your Ecommerce Brand Needs a Klaviyo Marketing Agency
You Save Time
No more juggling campaigns, writing copy, and designing templates on your own.
You Get Proven Strategies
Agencies already know what works for your niche. Instead of testing blindly, you hit the ground running.
You Maximize ROI
A well-optimized Klaviyo setup often generates 30–40% of a brand’s revenue.
You Build Loyalty, Not Just Sales
Through automation and personalization, you create long-term customer relationships—not just one-time purchases.
Real Benefits of Hiring a Klaviyo Marketing Agency
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Revenue Growth: Turn email from 10% of revenue into 30–40%.
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Better Segmentation: No more generic blasts—every customer gets personalized offers.
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Stronger Brand Identity: Branded templates, consistent messaging, and a polished customer experience.
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Higher Engagement Rates: Open rates, click-throughs, and conversions all improve.
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Hands-Free Marketing: Automations run 24/7, generating sales even while you sleep.
Signs You Should Hire a Klaviyo Marketing Agency
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Your email revenue is under 20% of total sales.
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You only send campaigns occasionally.
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You haven’t set up core flows like welcome or abandoned cart.
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Your emails often land in spam.
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You’re scaling fast and need expert support.
If any of these sound familiar, it’s time to bring in the experts.
How Much Does a Klaviyo Marketing Agency Cost?
Every agency charges differently, but here’s a ballpark:
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Setup/Migration Packages: $2,000 – $5,000
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Monthly Retainers: $2,000 – $10,000 depending on scope
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One-Time Projects: $1,500 – $8,000
Yes, it’s an investment. But if your abandoned cart flow alone recovers $50,000 in sales annually, the math is clear—it pays for itself.
How to Choose the Right Klaviyo Marketing Agency
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Look for Klaviyo Partner Certification.
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Ask for case studies or examples from your industry.
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Review their design + copy portfolio.
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Ensure they provide transparent reporting.
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Look for a cultural fit—communication is key.
The 90-Day Impact of Working With an Agency
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Days 1–30: Onboarding, migration, and setup of core flows.
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Days 31–60: Campaigns roll out, segmentation improves, deliverability checks.
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Days 61–90: Advanced testing, SMS integration, and scaling strategies.
Most brands see significant revenue lifts within the first 3 months.
Future Trends in Klaviyo Marketing Agencies
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AI-Powered Personalization – Predictive analytics to recommend products.
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Cross-Channel Journeys – Combining email, SMS, and push notifications.
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Creative Automation – Faster A/B testing using AI-driven subject lines and layouts.
Agencies that adapt to these trends will keep brands ahead of competitors.
Case Study Example
A skincare brand partnered with a Klaviyo marketing agency after their emails were underperforming.
Results after 6 months:
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Email revenue grew from 18% to 45% of total revenue.
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Customer repeat purchase rate jumped by 22%.
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Abandoned cart recovery rate doubled.
This shows the direct ROI of expert email marketing execution.
Conclusion
Ecommerce is competitive, but you don’t have to rely only on ads to win customers. With the right Klaviyo marketing agency, you can unlock the full potential of email and SMS marketing.
From building automations that run 24/7 to crafting campaigns that drive consistent sales, an agency doesn’t just save you time—it grows your brand’s bottom line.
If you want ecommerce growth in 2025 and beyond, partnering with a Klaviyo marketing agency is one of the smartest moves you can make.
FAQs
1. Can small ecommerce stores benefit from a Klaviyo marketing agency?
Yes! Even small stores can see massive ROI from optimized email flows.
2. How soon will I see results?
Many brands see revenue improvements within the first 30–60 days.
3. Do these agencies handle SMS too?
Absolutely. Most combine email + SMS for stronger results.
4. What’s the difference between Klaviyo consultants and agencies?
Consultants usually work solo, while agencies provide a full team (strategists, designers, copywriters).
5. Is Klaviyo better than Mailchimp or Omnisend?
For ecommerce brands, Klaviyo is hands down more powerful due to its integrations, segmentation, and revenue tracking.
