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

Three Red Boxes
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Three Red Boxes assists B2B companies in creating and managing effective cold email outreach systems. We take care of everything, including domain configuration, deliverability, campaign strategy, and implementation. If your emails aren't reaching their destination or your outreach efforts aren't yi
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided
85% Email Marketing & Automation
15% Marketing Funnel Development
AI Summary
“Three Red Boxes offers comprehensive cold email outreach solutions for B2B companies, managing domain setup, deliverability, and campaign strategies to enhance email effectiveness and results.”
Custom Outbound
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Custom Outbound provides targeted cold email campaigns based on data and aligned with brand identity, resulting in a consistent pipeline.
Highlights
$5,000+
Min Project Size
10-49
Employees
Services Provided
85% Email Marketing & Automation
15% Demand Generation Marketing
AI Summary
“Custom Outbound specializes in data-driven, brand-aligned cold email campaigns that generate a consistent sales pipeline, enhancing outreach effectiveness for diverse business needs.”
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Alex Moulart Email Marketing
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When was the last time you conducted an A/B test on your signup offer? For many DTC brands, it’s likely been over three months since they last evaluated new offers. This is reflected in Klaviyo's data, which shows that the average signup rate is around 3%. So how can we create signup forms that conv
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided
85% Email Marketing & Automation
15% SMS Marketing
AI Summary
“Alex Moulart Email Marketing specializes in data-driven email and SMS marketing, emphasizing continual testing, engaging content, strategic workflows, and organized systems to boost DTC brand performance.”
EMMPA
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Retain your valuable customers and boost your profitable revenue by an additional 30-50% through Email and SMS marketing, without any advertising costs.
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Mykolaiv, Ua
Services Provided
80% Email Marketing & Automation
10% Content Marketing Strategy
10% Ecommerce Marketing
AI Summary
“EMMPA specializes in enhancing customer retention and increasing profitable revenue by 30-50% through effective Email and SMS marketing strategies without incurring advertising costs.”
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Pyroplane
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Pyroplane offers a comprehensive B2B email marketing subscription that simplifies your campaigns. We create and implement data-driven strategies aimed solely at turning your prospects into dedicated customers while providing quantifiable outcomes for your business. Tap into the leading channel for m
Highlights
2-9
Employees
Services Provided
85% Email Marketing & Automation
15% Marketing Funnel Development
AI Summary
“Pyroplane provides B2B email marketing subscriptions with data-driven strategies to efficiently convert prospects into loyal customers, delivering measurable ROI and streamlined campaign management.”
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Xpand Outreach
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Our expertise includes: ✅Ensuring dependable and efficient email delivery. ✅Managing CRM systems. ✅Overseeing email routing across servers and networks. ✅Establishing your infrastructure to authenticate and validate emails to guard against spoofing and phishing threats. ✅Advising on compliance stand
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided
80% Email Marketing & Automation
20% Search Engine Optimization (SEO)
AI Summary
“Xpand Outreach excels in Digital Marketing by offering expert Email Marketing & Automation and Search Engine Optimization (SEO) services. Their focus on email deliverability and SEO reputation management showcases their strength in enhancing marketing effectiveness.”
TheMailEffect.com
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We are more than an email marketing agency; we are your **ecommerce growth partners**. With extensive experience in the ecommerce sector and a keen insight into consumer behavior, we craft email and SMS strategies that yield **tangible results**. As **certified Klaviyo Partners & Experts**, workin
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided
80% Email Marketing & Automation
20% SMS Marketing
AI Summary
“TheMailEffect.com is an ecommerce growth partner and certified Klaviyo expert specializing in data-driven email and SMS marketing strategies, automations, and segmentation to enhance revenue and customer loyalty.”
Surf Digital
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We create cold email outreach systems designed to assist agencies and B2B businesses in scheduling meetings with their ideal clients. Our solutions feature AI-driven data, effective filtering, and are tailored to specific agency needs.
Highlights
2-9
Employees
Services Provided
80% Email Marketing & Automation
20% CRM Consulting and SI
AI Summary
“Surf Digital excels in Digital Marketing with a strong emphasis on Email Marketing & Automation, delivering AI-driven cold outreach solutions tailored for agencies and B2B businesses seeking effective client engagement.”
Mailing Monk
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Mailing Monk is a performance-focused Email Marketing Agency committed to assisting businesses in transforming email into their most lucrative marketing avenue. We excel in creating effective email campaigns that captivate audiences, cultivate subscriber relationships, and promote steady revenue inc
Highlights
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided
80% Email Marketing & Automation
10% Ecommerce Marketing
10% SMS Marketing
AI Summary
“Mailing Monk is an email marketing agency specializing in creating effective campaigns that engage audiences, nurture subscriber relationships, and drive sustained revenue growth for businesses.”
Stimulate
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Here's the harsh reality: the cost of acquiring new customers is rising daily. But what if your growth strategy could rely less on constantly seeking out new buyers? Stimulate assists eCommerce brands in achieving sustainable growth by focusing on customer retention, turning your current customers i
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Tampa, Florida, Us
Services Provided
70% Email Marketing & Automation
30% SMS Marketing
AI Summary
“Stimulate is a growth-focused agency specializing in data-driven email and SMS marketing strategies that enhance customer retention, boost purchase frequency, and maximize lifetime value for eCommerce brands.”

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