5 Best Klaviyo Agencies for Email Marketing in 2025

Want to take your Klaviyo campaigns to new heights? These top Klaviyo agencies can create personalized and targeted campaigns that drive engagement and conversions.

By Mayple staff

Edited by Anelisa Nokoyo

Updated November 6, 2024.

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﻿Email marketing has been around since the early days of digital advertising, and for good reason. It's a proven, flexible way to connect with people. Since emails allow you to communicate directly and personally, you can customize campaigns to boost results, and Klaviyo is particularly suited to this. Make the most of this tried and trusted email marketing platform with the help of these vetted Klaviyo agencies.
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Our top picks 
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How we choose the best expertsEvery expert must go through a data-based vetting program before their profile can go live on Mayple.com. This is how we vet our experts:
Proven track record of results: We get view-only access to the experts’ accounts and analyze the results they’ve achieved for different brands according to their niches. Only the marketers that have achieved above-benchmark results can become official Mayple experts
Professional practices: We have a long list of best practices per skill set that determines whether a marketer is professional. This is compared against their past work, for example, their account structure, A/B testing methodologies, and 100+ other criteria, so we don’t miss anything.
Other than that, we also provide unbiased monitoring services. Our monitoring system checks over 180 parameters relating to the professional level of work and your campaigns’ KPIs, to help ensure a high chance of success. Here are some of the parameters we monitor:
A/B testing methodology
Account structure
Naming convention
Targeting approach
Shopping ads methodology
Attribution models
Revenue & ROAS
KPI's: CTR, CVR, CPA & more
Change-log
Funnel conversion rates
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Top 51. The Email Marketers -  Best overall
2. Aspekt -  Best for combining SMM with email marketing
3. Adventure Digital - Best for start-ups in eCommerce marketing
4. King Pixel Digital Marketing - Best for women-focused email marketing
5. HiFlyer Digital - Best for customer retention-focused email marketing
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Brief overviewThe Email Marketers leverages the power of email marketing to help fast-scaling eCommerce brands grow their revenue and customer lifetime value while building deep, connected relationships.
Why we chose The Email MarketersThe Email Marketers believe that every brand owner deserves to have someone in their corner who cares about the success of their business just as much as they do. They are the ultimate outsourced email team catering to all of your email marketing needs.
Track record:  Over 78,000% subscriber growth in one week and 835% increase in revenue from emails for clients | Est. 2017
Industry focus: Beauty, food & drink, health & wellness, style & fashion
Pros
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Klaviyo Gold, Privy, and Postscript partnerships
Strong track record of various client achievements
Strong focus on email and SMS marketing, which often go hand-in-hand
Cons
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Limited digital marketing services may mean you need to substitute other marketing options with various agencies
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Brief overviewAspekt helps eCommerce store owners scale exponentially by systemizing their Facebook Ads and email marketing. They're more than just an "ad agency"; they see themselves as your eCommerce growth partners and are committed to finding the best strategies for you.
Why we chose AspektThey are a passionate agency focusing mainly on direct-to-consumer (DTC) brands across a broad range of industries in the eCommerce sector, with a strong track record featuring awe-inspiring achievements.
Track record: History of success with large brands like Montserrat, Mark Ingram, and more | $10+ million generated in email revenue
Industry focus: Beauty, electronics, food & drink, home & garden, sports, outdoors & fitness
Pros
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They offer a retention service for clients needing long-term, stable campaign management
Tailored pricing packages per client and per campaign
Guarantees money back on all services
Free auditing services
Cons
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Strong focus on DTC may be disadvantageous to other industry types
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Brief overviewWith over 13 years of experience, Adventure Digital is an agency built from the ground up to support brand needs and growth. They specialize in scaling digital advertising campaigns for acquisition, especially for start-up and key growth phase eCommerce brands. 
Why we chose Adventure DigitalThanks to their extensive experience helping successful growth brands launch and prosper, they have all the tools and expertise needed to help your business grow.
Budget: $2k - $100k
Track record: 13+ years of experience
Industry focus: Beauty, finance, health & wellness, nonprofit & government
Pros
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They're a beginning-to-end marketing firm, assisting from planning through launch and optimization
Full transparent and comprehensive pricing plans online
Cons
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Lacking information regarding a track record, though some testimonials are present online
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Brief overviewWith over 20+ years of marketing experience, King Pixel brings a wealth of retail marketing expertise from global brands in the fashion, beauty, and lifestyle sectors. Their focus is on female business owners selling to female customers. They specialize in SMS campaigns, push notifications, ESP migrations, and customer loyalty programs, with industry-leading experience in eCommerce.
Why we chose King Pixel Digital MarketingThey're experienced and renowned for using ingenious funnel strategies that drive more leads, resulting in higher sales achievements. They utilize shopper experience optimization, leading to a high customer retention rate.
Budget: $10k - $20k
Track record: 7x revenue increases within 90 days  and 400%+ increases in ROAS
Industry focus: Baby, beauty, finance, food & drink, nonprofit & government, style & fashion
Pros
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They offer more than just SMS or email marketing, making them a good fit for a more expansive marketing strategy
Strong conversion-rate focus
Free training offered for social media advertising models
Cons
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They mainly focus on specific industries that may not suit your target market
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Brief overviewSpecializing in building customer-centric email & CRM strategies for eCommerce brands, HiFlyer has powered millions in revenue growth for the top eCommerce brands in the world. They are a Klaviyo agency partner and specialize in email content, SMS content, list cleaning, browser abandonment campaigns, and custom strategy. They are a team of email experts that are committed to your long-term growth.
Why we chose King Pixel Digital MarketingThey specialize in helping eCommerce brands build better customer relationships using email, SMS, and CRM. With two billion+ emails sent and $300 million generated annually, they know their stuff.
Track record: 300%+ revenue growth YoY
Industry focus: Beauty, electronics, technology
Pros
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They offer a completely automated strategy from planning and personalization to segmentation
Strong focus on cart abandonment reduction and retargeting strategies
Cons
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Lacking transparent pricing or packages online, which may indicate high costs to smaller clients
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What is a Klaviyo agency?A Klaviyo agency is a company or a team of professionals specializing in using Klaviyo, an email marketing platform, to help your business create and manage your email marketing campaigns. These agencies are well-versed in utilizing Klaviyo's features and tools to optimize email marketing strategies for their clients.
Services offered by Klaviyo agencies may include email campaign setup, email template design, automation workflows, analytics, and overall strategy development to enhance your customer engagement and drive conversions, improving your return on ad spend (ROAS).
What does a Klaviyo agency do?A Klaviyo agency usually consists of email copywriters, designers, and developers who create and optimize your email marketing campaigns to grow your business. Their work could be broken down into the following:
Klaviyo setup and optimizationThe first thing a Klaviyo email marketing agency would do for a new client is ensure they have their Klaviyo account set up correctly. That's the bulk of the work for Klaviyo experts.
Then comes the campaign strategy, which includes a content calendar for each email flow, setting up each email campaign, and creating email automation for each step of the customer journey.
Other aspects of a campaign strategy include:
Monthly custom reports on all the email campaigns
Monthly optimization, A/B testing, and analytics
Design and development of campaigns
Email marketing tactics (user-generated content + giveaways)
Detailed email strategy designed to hit your business goals
Marketing automation across the customer lifecycle (welcome flow, post-purchase flow)
Complimentary services may include SMS, push notifications, omnichannel marketing strategies, lead generation, and upgrading your tech stack.
Klaviyo consulting and managementBusinesses with a robust email marketing strategy sometimes need a quick consultation to ensure they're optimizing and taking advantage of the platform's various features. A Klaviyo expert or agency could also recommend other changes to improve the conversion rates of your emails or website.
﻿Conversion rate optimization is tied to how many leads you get and how big your email list is, so it greatly affects email marketing revenue. The right Klaviyo expert could also look at your customer data and recommend other marketing efforts you haven't thought of.
» Looking for a more traditional approach? Explore the best email marketing agencies.
What's a Klaviyo partner vs a Klaviyo master?Klaviyo has a partnership program for its agency partners and individual Klaviyo specialists. Klaviyo Partner is the regular level of certification. Klaviyo Master is a higher level of certification designed for agencies and consultants that provide superior services and deliver great results on a regular basis.
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Questions you may want to ask your Klaviyo agencyWhat is your revenue model? (Per project or commission.)
Have you helped similar eCommerce businesses in my niche grow their revenue from email marketing?
What other marketing channels do you specialize in (influencer marketing, search engine optimization)?
Does your service include a monthly campaign calendar? And how many months do you plan in advance?
Would you handle the email design and content creation for each email campaign?
What type of campaign cadence would you recommend?
What would your automation strategy look like?
How often would you send reports of your progress?
Who will be my main point of contact at your agency?
How many Klaviyo customers do you have?
What kind of strategy would you recommend for my business?
What type of email campaigns would you focus on (abandoned cart, welcome series, post-purchase flow)?
Which eCommerce platforms do you have experience in?
Why not work with a regular email marketing agency?You could always work with a regular email agency, but not all email marketing agencies have the specific Klaviyo expertise you want. Working with a digital marketing agency that has experience working with this platform and companies in your niche or industry can yield much better results.
Hire a Klaviyo agency to elevate your email marketingPartnering with a Klaviyo agency unlocks a wealth of expertise to boost your email marketing efforts, driving brand growth. With their in-depth understanding of Klaviyo's tools and strategies, these agencies can empower your business, enhance customer engagement, optimize campaigns, and drive conversions.
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