Unlocking Klaviyo's Power: How to Choose the Best Email Agency for Your Brand

klaviyo email agency - klaviyo email agency
Professional headshot of Steve Pogson, Founder of First Pier
September 1, 2025

Why Email Marketing Success Needs the Right Klaviyo Partner

A klaviyo email agency helps e-commerce businesses get the most out of their email and SMS marketing with Klaviyo. These agencies offer complete services, including account setup, automation, campaign planning, email design, and performance improvements to help online stores grow.

What Klaviyo Email Agencies Do:

  • Set up and improve Klaviyo accounts
  • Build automated email flows (welcome, abandoned cart, post-purchase)
  • Create targeted email and SMS campaigns
  • Design custom, mobile-friendly email templates
  • Use advanced segmentation and personalization
  • Provide performance reports and ongoing improvements
  • Connect Klaviyo with Shopify and other platforms

Email marketing offers a great return on investment, and brands using Klaviyo can see a 3x ROI. However, the platform's advanced features require expertise to open up their full potential. The complexity can be a lot for marketing teams to handle on their own.

The goal is to create personalized customer experiences that build loyalty. As one agency insider shared: "Merchants often stick with Klaviyo during re-platform projects due to its value, from product integration into emails to advanced marketing automation."

Many e-commerce brands leave 25-45% of potential email revenue on the table with poor setups. A planned, data-driven approach can mean thousands more in monthly revenue.

I'm Steve Pogson, founder of First Pier, a Shopify Expert Agency that has helped brands like Wyman's Blueberries and Hyperlite Mountain Gear grow their email marketing. With over two decades in e-commerce, I've seen how the right klaviyo email agency can change a store's growth path.

Infographic showing the key benefits of partnering with a specialized Klaviyo email agency: higher ROI through advanced automation, improved customer retention with personalized flows, increased revenue from data-driven segmentation, time savings from expert management, and access to latest platform features and best practices - klaviyo email agency infographic pillar-5-steps

What is a Klaviyo Email Agency and What Do They Do?

Klaviyo campaign team - klaviyo email agency

A klaviyo email agency is a specialized partner focused on making Klaviyo work for your e-commerce business. They handle the complexities of email and SMS marketing, so you can focus on running your store. Many store owners feel overwhelmed by Klaviyo's features, and an agency knows how to use them effectively.

Complete support means an agency handles everything. Whether you're starting new or fixing an existing setup, they act as your dedicated email team without the overhead of full-time staff. They set up your account correctly and review existing setups to find missed opportunities.

Planning is key. An agency creates a roadmap that lines up with your business goals by understanding your customers and brand voice. The real value is in automation building. They create smart Klaviyo Flows that work 24/7, like welcome series, abandoned cart reminders, and post-purchase follow-ups that turn one-time buyers into repeat customers.

Agencies also manage your campaign planning and management. For a new product launch or a seasonal sale, they create targeted Klaviyo Campaigns that reach the right audience.

Good email writing gets your messages opened and clicked. The team writes in your brand's voice, not corporate jargon. Custom email design is also vital. They create beautiful, mobile-friendly templates that reflect your brand, making your emails stand out. Our custom email design service helps with this.

They also focus on list growth with methods that attract quality subscribers. Testing is constant—subject lines, send times, and content are all tested to see what works best. Finally, clear reporting shows you how your email marketing is performing. Our Klaviyo Reporting approach provides useful insights.

A good klaviyo email agency takes email marketing off your plate and makes it a powerful tool for your business, handling the technical details, planning, and ongoing improvements.

Why Working with a Klaviyo Expert Can Change Your Results

Upward revenue growth from email marketing - klaviyo email agency

Businesses that partner with a skilled klaviyo email agency consistently outperform those going it alone. It's not just about the tools, but knowing how to use them. When we talk about increasing ROI, we mean significant gains. Brands with expert guidance often see a 3x return on investment from email, with some clients seeing revenue jump 30% or more in the first few months.

Klaviyo is complex, using machine learning on data from over 900 million profiles. A specialized agency has deep platform knowledge that takes years to build. They know how to use Klaviyo Features that most business owners don't even know exist.

Saving time is a huge benefit for busy owners. An agency handles the technical side, so you can focus on growing your business. The platform also changes constantly, and agencies stay up to date on new features like automated SMS and in-app messaging. They follow Klaviyo news and know how to apply updates to your business.

For Shopify merchants, the strong Shopify integration is a major advantage. After Shopify's $100 million investment in Klaviyo, the data flows smoothly between your store and marketing campaigns. An agency knows how to make the most of this Klaviyo Shopify Integration.

Expert agencies also take a multi-channel approach, understanding how email and SMS work together. A well-timed SMS can follow up on an unopened email, and a sequence of messages can recover an abandoned cart more effectively. Klaviyo SMS is a powerful addition to your email plan.

A klaviyo email agency changes how you connect with customers, turning one-time buyers into loyal fans who drive long-term growth.

Core Strategies That Set Great Agencies Apart

The best klaviyo email agency doesn't just send campaigns; they build advanced plans around your customer data and create automated systems that grow your business around the clock.

Using Data and Design to Connect with Customers

Most e-commerce brands have a wealth of customer data but aren't sure how to use it well. A good agency sees Klaviyo as a customer data platform that gathers purchase history, browsing behavior, and email engagement. This creates a complete view of each customer. Find out more about how Klaviyo CDP turns data into useful insights.

Agencies use this data for smart segmentation, creating specific groups based on behavior instead of emailing everyone the same message. This allows for deep personalization that feels like a one-on-one conversation. With dynamic content, emails can show different products or offers based on customer interest. This is the strength of Klaviyo Personalization.

Email design is just as important as the text. A top agency ensures every email reflects your brand and is easy to read on any device, with a focus on mobile-friendly design. Good Klaviyo Email Design guides customers to take action. Brand consistency across all messages builds trust and recognition.

The Power of Automation and SMS Marketing

A top klaviyo email agency builds automated flows that work 24/7. These are advanced sequences that respond to customer actions on your site.

  • Welcome series: A well-designed Klaviyo Welcome Series Flow introduces your brand and guides new subscribers toward their first purchase.
  • Abandoned cart recovery: These flows are great for revenue, bringing back customers who didn't complete a purchase. The best agencies tailor them based on cart value and customer history.
  • Post-purchase follow-ups: These keep the relationship going with care instructions or related product suggestions, which can boost customer lifetime value a lot.
  • Win-back campaigns: These target inactive customers with special offers to re-engage them.

The major benefit is adding SMS to the mix. Klaviyo's platform lets email and SMS work together smoothly. A customer might get an email about a sale, then an SMS reminder. Learn more about Klaviyo SMS and how it adds to your email plan.

The goal is a smooth customer experience. When email and SMS work together carefully, customers feel valued, not spammed.

How to Choose the Right Klaviyo Email Agency

Finding the right klaviyo email agency is like choosing a business partner. You need someone who understands your goals and has the skills to deliver results. To avoid poor communication or results, it's important to check potential partners carefully.

Look at their work and results. A good agency will share case studies with real numbers showing how they've boosted revenue for businesses like yours. Client reviews also show what it's like to work with them, highlighting communication and partnership quality.

Industry experience makes a difference. An agency that knows your industry understands your customers and can start quickly. If you're on Shopify, Shopify expertise is essential. They must know how to use the powerful Klaviyo and Shopify integration for things like syncing data and setting up flows.

Pay attention to communication style. Do they ask good questions and explain things clearly? Early interactions are a sign of what the partnership will be like. Also, ask about their reporting standards to ensure you get clear, regular updates on performance.

Key questions to ask include:

  • "Can you show me an example of how you increased email revenue for a similar business?"
  • "How do you handle customer segmentation and combining email with SMS?"
  • "How do you stay up to date with Klaviyo's new features?"
  • "What kind of reporting can I expect?"

Person on a video call looking at a presentation - klaviyo email agency

Key Criteria for Reviewing a Klaviyo Email Agency

Here are some specific things that separate great agencies from the rest:

  • Klaviyo Partner Status: Check if they are an official partner at Find the right Klaviyo Agency Partner. Higher-level partners (Elite Master, Platinum) have more experience.
  • Proven Results: Look for specific, measurable improvements in revenue, conversion rates, or customer lifetime value. Unclear claims aren't enough.
  • Technical Skills: The agency needs strong skills in platform integrations, deliverability, and building advanced automated flows.
  • Strategic Thinking: The best agencies bring new ideas that line up email with your bigger business goals, changing it from a cost to a source of profit.
  • Communication and Fit: Clear communication is vital. You also want an agency whose values and style match your brand, making the partnership feel like a natural extension of your team.

The right klaviyo email agency becomes part of your team, bringing skills and planning that change your email marketing into a powerful driver of growth. Take the time to find the right fit.

Measuring Success: The Metrics That Matter

After you team up with a klaviyo email agency, you'll want to know if your investment is paying off. Email marketing is great because everything can be tracked, checked, and improved. Focusing on the right metrics provides clear ideas that drive growth.

Here are the key metrics for checking your Klaviyo email performance:

  • Open Rate: How many people open your emails. A strong open rate means your subject lines are working.
  • Click-Through Rate (CTR): How many people clicked a link in your email. This shows if your content encourages action.
  • Conversion Rate: The percentage of recipients who made a purchase or completed another goal. This is a key metric for success.
  • Revenue Per Recipient: How much money each subscriber brings in. This directly connects email to your profits.
  • List Growth Rate: How quickly your email list is growing with quality subscribers.
  • Customer Lifetime Value (CLV): Good email marketing greatly affects CLV by building relationships and encouraging repeat purchases.
  • Unsubscribe Rate: Your agency should watch this to see if your content is connecting or if you're sending too many emails.

Klaviyo has great built-in analytics, and agencies often use their own dashboards to make the data easier to understand. The platform's Klaviyo Reporting is strong, and a feature I like is Klaviyo's benchmarks feature, which compares your performance to industry standards.

The best agencies don't just report numbers; they explain them and use the ideas to improve your plan. They find trends and make data-driven suggestions to keep your performance improving.

Frequently Asked Questions

Here are answers to the most common questions I hear from store owners about Klaviyo and working with agencies.

How quickly can I see results with a Klaviyo agency?

You're putting money into growth and want to see it pay off. You'll usually notice early improvements within the first 30 days, like better open rates or more revenue from fixed automation. These are the quick wins.

The real change often happens around the 90-day mark. By then, your automated flows have had time to work, your segmentation is effective, and we've figured out what connects with your audience. The full impact takes a little time to develop.

What makes Klaviyo different from other email platforms?

Several key differences make Klaviyo stand out for e-commerce:

  • Advanced segmentation: Klaviyo lets you create very specific groups based on purchase history and live browsing behavior, not just basics.
  • E-commerce focus: Every feature is built for online sellers, from abandoned cart recovery to post-purchase follow-ups.
  • Deep Shopify integration: The connection is smooth, allowing for real-time data flow for personalized recommendations and triggers.
  • Single customer profiles: Klaviyo tracks every customer interaction in one place, giving you a complete picture.
  • Predictive analytics: Machine learning helps you understand what customers might do next, allowing for very precise personalization.

Can an agency help with both email and SMS marketing in Klaviyo?

Yes! This is a major benefit of working with a good klaviyo email agency. Klaviyo's single platform is perfect for creating consistent campaigns across both channels.

An agency will figure out which customers are best for SMS and design campaigns that use both channels smartly. For example, an abandoned cart flow might start with an email and follow up with an SMS. Automation works smoothly across both, sending the right message on the right channel based on customer choices.

The targeting features are the same for email and SMS, so you can send personalized messages no matter the channel. This combined approach usually increases reach and revenue by giving you more interactions with customers while respecting their communication choices.

To Sum Up: Your Next Step to E-commerce Growth

I hope this guide has shown how a strong klaviyo email agency partnership can help your business. We've covered how data-driven segmentation, personalized design, advanced automation, and SMS connection can grow your revenue. Email marketing today is about building strong relationships that turn first-time buyers into loyal customers. A skilled agency helps you get that with Klaviyo.

Every day you wait to improve your email marketing is a day of lost revenue. The brands succeeding now are making smart investments in tested growth plans.

At First Pier in Portland, Maine, my team and I help e-commerce brands build successful online businesses. We know Shopify and how to make all the pieces of your e-commerce picture work together smoothly. When your email, website, and overall plan are all lined up, that's when you see real progress.

If you're thinking your current email setup is leaving money on the table, or you're ready to see what Klaviyo can do in the right hands, I'd love to talk.

Let's talk about your email marketing plan and look at how we can help you use Klaviyo's full potential. Your customers are waiting to hear from you—let's make sure it's the right message at the right time.