Top Email Marketing & Automation Companies

Email marketing and automation agencies own the inbox channel for a brand: the welcome, abandoned-cart, post-purchase and win-back flows that run on triggers, the campaign calendar that goes out on a schedule, and the platform underneath, whether Klaviyo, HubSpot or Braze. Online stores hire them to turn a list into repeat revenue, B2B teams to nurture leads between sales touches, and SaaS companies for onboarding and renewal sequences, usually after a migration, flat revenue from a growing list, or mail landing in spam.

Shortlist by the platform each agency is certified on and by what it reports: revenue per flow and per send, not open rates. Check whether copy and design are in-house and who owns deliverability.

How this list is built

We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

10,000 Companies

List of the Best Email Marketing & Automation Agencies

Hamilton Emails
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The Exclusive Retention Specialist Agency. Convert your one-time buyers into devoted repeat customers through customized email strategies for various industries. Authentic results, genuine growth.
Highlights
2-9
Employees
Services Provided
80% Email Marketing & Automation
20% Digital Strategy
AI Summary
“Hamilton Emails specializes in customized email strategies that transform one-time buyers into loyal customers, driving authentic growth across diverse industries through retention-focused marketing.”
Retain (Email & Retention) Marketing Agency
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We collaborate with e-commerce brands globally to enhance their revenue and lifetime value (LTV) by implementing retention marketing strategies, such as email marketing, loyalty programs, and SMS & WhatsApp marketing.
Highlights
$1,000+
Min Project Size
2-9
Employees
Services Provided
80% Email Marketing & Automation
20% Ecommerce Marketing
AI Summary
“Retain partners with global e-commerce brands to boost revenue and lifetime value through retention marketing, including email, SMS, WhatsApp, and loyalty programs.”
Flowium
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We assist eCommerce brands in expanding through retention-focused lifecycle marketing, utilizing email and enhanced by the appropriate channels at crucial times. Trusted by over 1,000 brands, we offer Klaviyo Elite Partner Services aimed at one objective: improving retention and increasing customer
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Staten Island, New York, Us
Services Provided
70% Email Marketing & Automation
25% Ecommerce Marketing
5% Other Digital Marketing
AI Summary
“Flowium specializes in retention-driven lifecycle marketing for eCommerce brands, offering expert email marketing services to enhance customer lifetime value and drive measurable growth.”
Mail Conversions
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We speed up the expansion of Ecommerce brands through our unique email marketing strategies. If you're aiming to enhance direct-to-consumer sales, raise your monthly income, and establish your brand's reputation, partner with us—we take pride in being performance-driven.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided
80% Email Marketing & Automation
10% SMS Marketing
10% Digital Strategy
AI Summary
“Mail Conversions accelerates ecommerce brand growth using unique email marketing strategies focused on boosting direct-to-consumer sales, monthly revenue, and brand reputation with performance-driven solutions.”
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Way2mail
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Way2Mail is a service that facilitates email delivery for teams around the globe. It offers dependable high-volume infrastructure, expert assistance with deliverability, and personalized onboarding support.
Highlights
10-49
Employees
Services Provided
80% Email Marketing & Automation
20% Demand Generation Marketing
AI Summary
“Way2Mail provides reliable high-volume email delivery infrastructure, expert support, and tailored onboarding to teams worldwide, ensuring efficient and dependable communication solutions.”
Optimite
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Optimite is a marketing agency focused on customer retention for ecommerce brands. We offer a comprehensive program that includes email, SMS, lifecycle management, list growth, loyalty, and subscription services. As a Klaviyo Master Platinum Partner, we have collaborated with over 500 brands across
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Gurugram, Haryana, In
Services Provided
70% Email Marketing & Automation
30% SMS Marketing
AI Summary
“Optimite is a Dubai-based marketing agency specializing in customer retention for ecommerce, offering email, SMS, loyalty, and subscription services with expert in-house teams and global reach.”
mmw3degrees
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At mmw3degrees, we specialize in personalized customer communications and are recognized as one of Australia's leading direct marketing firms. We recognize that successful marketing hinges on the four critical phases: Attract, Acquire, Secure, and Grow. Our expertise lies in direct mail, email, and
Highlights
50-249
Employees
Lane Cove, New South Wales, Au
Services Provided
75% Email Marketing & Automation
25% Other Digital Marketing
AI Summary
“mmw3degrees is a leading Australian direct marketing firm specializing in personalized customer communications through direct mail, email, SMS, graphic design, and digital solutions with 20+ years' experience.”
I Am Nontas
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I AM NONTAS is a marketing automation consultancy dedicated to developing email systems that produce consistent, measurable revenue. I collaborate with small to mid-sized businesses, primarily in ecommerce, consulting, and digital products, that have outgrown basic email campaigns yet lack a compreh
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
Services Provided
80% Email Marketing & Automation
5% Conversion Rate Optimization (CRO)
15% Marketing Funnel Development
AI Summary
“I Am Nontas specializes in designing and implementing comprehensive email marketing automation systems for small to mid-sized ecommerce and consulting businesses, enhancing strategy, segmentation, and performance reliability.”
Singh Acquisitions
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Singh Acquisitions is a company that specializes in productized outbound growth, offering predictable pipeline generation as a service. This service eliminates the need for in-house prospecting by providing a comprehensive cold email engine that handles targeting, data sourcing, messaging, infrastru
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided
75% Email Marketing & Automation
25% Demand Generation Marketing
AI Summary
“Singh Acquisitions provides automated outbound growth solutions, delivering scalable, predictable B2B sales pipelines through AI-driven prospecting and comprehensive cold email services with strong client retention.”
Journeywise
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Journeywise is an email and SMS marketing agency that aids direct-to-consumer brands in leveraging Klaviyo as a steady source of income. The agency focuses on lifecycle strategies, effective campaigns, and optimized flows aimed at boosting repeat purchases, enhancing customer value, and growing reve
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided
75% Email Marketing & Automation
25% SMS Marketing
AI Summary
“Journeywise is an email and SMS marketing agency specializing in Klaviyo-powered lifecycle strategies and optimized campaigns to increase repeat purchases, customer value, and revenue for direct-to-consumer brands.”

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