Looking for the best email marketing agency to supercharge your email automation strategies in 2026?
Full disclosure: We believe we’re at the top of our game. At Growth Hackers, we know we’re among the best email marketing agencies out there. But, in the spirit of honesty and good business practice, we recognize that we’re not the only pros in the field. If a hypothetical client couldn’t work with us, we know exactly which agencies we’d recommend.
This list doesn’t feature the biggest, flashiest names… some are underdogs, but every one of them has earned our stamp of approval. Whether they’re colleagues, competitors, or even frenemies, these email marketing companies consistently deliver exceptional results with a laser focus on growth, automation, and ROI.
So, if you don’t choose to work with us (your loss), here are some fantastic email marketing agencies that deserve your attention.
Our Selection of the 18 Best Email Marketing Agencies for 2026:
1. Growth Hackers
📍 Headquarters: Sheridan, Wyoming, United States
📅 Year Established: 2016
👥 Team Size: 11-50 employees
Growth Hackers is a dynamic email marketing agency specializing in advanced email marketing automation and strategy. As a full-service email marketing company, we leverage cutting-edge technology to create personalized campaigns that resonate with target audiences. Our expertise spans across list segmentation, campaign tracking, and advanced automation techniques, ensuring optimal performance for every email sent.
Our dedicated team works closely with clients to implement tailored email marketing strategies that drive both customer retention and acquisition, offering a comprehensive approach to digital marketing. Our email marketing services go beyond just sending emails; Growth Hackers is committed to maximizing the effectiveness of each campaign.
With a focus on performance optimization, we fine-tune every detail to ensure that the right message reaches the right person at the right time. Whether it’s optimizing subject lines, improving deliverability, or perfecting timing, Growth Hackers’ approach guarantees measurable success in driving customer engagement and revenue growth. Our full-service offering makes us an ideal partner for businesses looking to elevate their email marketing efforts.
2. SeeResponse
📍 Headquarters: McLean, Virginia, United States
📅 Year Established: 2019
👥 Team Size: 2-10 employees
SeeResponse is a premier B2B email marketing agency offering custom-tailored email marketing strategies for both startups and large corporations. With a focus on delivering robust email marketing automation, SeeResponse understands the nuances of B2B email marketing and how to craft campaigns that convert. From list management to segmentation and targeted email strategies, SeeResponse is committed to achieving your business goals.
Their team of experts works diligently to create email marketing services that align with each client’s specific business needs, offering personalized strategies that ensure high engagement and solid returns on investment. By employing best practices in email marketing automation and strategy, SeeResponse helps companies reach their ideal audience and drive substantial growth.
Their global team of email marketing professionals specializes in optimizing campaigns for maximum performance, utilizing data-driven insights to continually refine and improve email marketing efforts. Whether you’re looking to improve your customer outreach or enhance your lead generation efforts, SeeResponse’s comprehensive email marketing campaigns are designed to drive measurable results.
3. Magnet Monster
📍 Headquarters: London, England, United Kingdom
📅 Year Established: 2018
👥 Team Size: 11-50 employees
Magnet Monster is an expert email marketing company that offers end-to-end email marketing services for businesses looking to scale. Specializing in automation, campaign management, and email design, Magnet Monster helps brands achieve consistent email success. Their expertise in both email marketing and technology allows them to deliver exceptional results for over 5,000 brands.
Their e-mail marketing strategy is rooted in a deep understanding of customer behavior and market trends, ensuring every email campaign delivers the right message at the right time. Magnet Monster’s email marketing firm is designed to boost engagement and conversion rates through advanced automation techniques. They take the time to understand the unique needs of their clients, offering personalized strategies that align with business goals.
With over 40 certified email marketing professionals and a wealth of experience working across 20+ ESP platforms, Magnet Monster is a trusted partner for brands seeking powerful email marketing solutions. Whether it’s designing high-converting email templates, automating drip campaigns, or optimizing email flows, Magnet Monster provides full-service email marketing solutions that take your business to the next level.
4. Flowium
📍 Headquarters: Staten Island, New York, United States
📅 Year Established: 2017
👥 Team Size: 51-200 employees
Flowium is a top-tier email marketing agency that specializes in maximizing revenue through the power of email automation. Their email strategy is centered around deep analysis and optimization, ensuring that every campaign is designed to produce the highest possible returns. With a focus on email segmentation, automations, and creative design, Flowium delivers personalized solutions that improve customer engagement.
Their tailored strategies deliver consistent growth, making them an invaluable partner for businesses looking to succeed through email. Their approach is transparent and results-driven, with a unique price guarantee that gives clients peace of mind while growing their email marketing efforts. As experts in email marketing automation, their email marketers take a comprehensive approach to email campaign management.
Flowium’s commitment to customer success and data-driven insights ensures that businesses can scale their email marketing efforts while increasing their bottom line. From assessing the performance of existing campaigns to creating new automations and flows, their team is dedicated to optimizing each aspect of the email marketing process.
5. Essence of Email
📍 Headquarters: Houston, Texas, United States
📅 Year Established: 2014
👥 Team Size: 11-50 employees
Essence of Email is a highly specialized email marketing agency with a strong focus on eCommerce businesses. Their expert email marketing services are designed to drive growth through customer retention and acquisition, using platforms like Klaviyo, Constant Contact, Brevo, Omnisend and Mailchimp. With over a decade of experience in email marketing, Essence of Email has helped clients generate over $150M in revenue through expertly crafted campaigns.
They combine deep industry knowledge with advanced email marketing automation to deliver strategies that truly resonate with customers, drive results and drive sales. The internal team at Essence of Email excels in creating comprehensive email marketing strategies that integrate automation, segmentation, and personalized messaging to ensure clients see a strong return on investment.
Their focus on customer lifecycle management allows them to build long-term email relationships that increase customer lifetime value. Whether you’re new to email marketing or looking to optimize your current campaigns, Essence of Email offers tailored solutions that ensure maximum impact and growth. What truly sets them apart from other email marketing companies is their obsessive attention to detailed reporting, the dedicated account manager who’ll know your business inside out, and their relentless optimization that never stops improving your results.
6. MH Digital
📍 Headquarters: San Diego, California, United States
📅 Year Established: 2022
👥 Team Size: 2-10 employees
MH Digital is a leading email marketing agency known for creating high-converting campaigns that drive significant revenue growth. Their team specializes in developing email marketing strategies that are data-driven and results-oriented, focusing on list segmentation and automation. By utilizing a meticulous approach to campaign analysis and performance optimization, MH Digital helps businesses achieve sustainable success through email marketing.
Their team works closely with clients to craft personalized campaigns that resonate with their audience, driving higher engagement and conversions. MH Digital’s email marketing campaigns are built around the idea that great marketing starts with great data. Their focus on segmentation and analysis allows them to create targeted email campaigns that speak directly to customer needs.
With a proven track record of helping clients generate more than 30% of their revenue from email marketing, MH Digital’s approach is both effective and scalable. Whether you need a full-service email marketing partner or specific services like automation and list management, MH Digital is committed to delivering exceptional results. They analyze email templates, subject lines, and CTAs (Call to Action) to find the most efficient and problematic solutions to your problem.
Want to work with one of the top email marketing companies?
Contact Growth Hackers
7. Netpeak
📍 Headquarters: Philadelphia, Pennsylvania, United States
📅 Year Established: 2006
👥 Team Size: 51-200 employees
Netpeak is a full-service digital marketing agency that also offers top-tier email marketing campaigns. Known for their expertise in brand strategy, search engine optimization and PPC ads, Netpeak brings a strategic approach to email marketing by combining personalized email strategies with powerful automation tools. Their e-mail marketing strategy focuses on enhancing customer engagement through tailored campaigns that increase conversions and drive loyalty.
With a deep understanding of analytics and performance metrics, Netpeak helps clients optimize their email marketing automation to achieve long-term success and getting high-quality results. Their team is skilled in crafting email marketing campaigns that are both creative and data-driven, ensuring that every email sent adds value to the customer journey.
Netpeak’s email marketing firm is designed to help businesses scale efficiently by leveraging advanced segmentation, personalization, and automation. By integrating their email marketing efforts with broader digital strategies, Netpeak ensures that clients can reach their target audience effectively while boosting customer retention and maximizing ROI. They have a large experience on various email service providers (ESPs) such as MailChimp, Brevo, Constant Contact, ActiveCampaign and MailerLite.
8. SmartMail
📍 Headquarters: New York City, New York, United States
📅 Year Established: 2013
👥 Team Size: 11-50 employees
SmartMail is an email marketing agency that specializes in delivering high-ROI campaigns for eCommerce businesses. They utilize a unique sprint framework to create email marketing strategies that generate exceptional results in a short time. They‘re constantly learning and experimenting with new techniques and tech stacks. And they’re not scared to cut projects that aren’t working, so they can pivot to new ones that will.
Their team of experts works closely with clients to design personalized campaigns that drive sales and customer retention, leveraging their in-depth knowledge of email marketing best practices. From designing email templates to setting up email automation triggers, they’ve got you covered. SmartMail’s cost effective email marketing campaigns are designed to deliver fast and measurable results, combining email automation with creative design to create campaigns that engage and convert.
They specialize in crafting targeted, high-performance email flows that deliver the right message to the right audience at the right time. By focusing on personalization and segmentation, SmartMail helps businesses increase customer engagement and boost conversions, making them a valuable partner for any eCommerce brand or SaaS company looking to scale through email marketing. With a strong focus on email automation, SmartMail has helped over 150 brands achieve up to a 48x ROI on their email marketing efforts.
9. Enflow Digital
📍 Headquarters: Vilnius, Lithuania
📅 Year Established: 2022
👥 Team Size: 2-10 employees
Enflow Digital is an innovative email marketing firm that helps eCommerce and SaaS businesses maximize their revenue through omnichannel strategies. Specializing in email and SMS marketing, Enflow Digital’s email strategy is built on the power of automation and personalization. Their team develops tailored campaigns that streamline customer journeys, ensuring seamless communication and increased engagement at every stage.
By focusing on the customer experience, Enflow Digital helps brands drive both customer acquisition and retention. Enflow Digital’s email marketing services are rooted in a data-driven approach that helps businesses optimize their email flows and automate key processes. Their expertise in both email marketing and SMS campaigns allows them to offer integrated solutions that deliver outstanding results across multiple channels.
By personalizing each touchpoint and automating repetitive tasks, their email marketers ensure that every campaign is as effective as possible, helping businesses achieve maximum revenue growth. They‘ll provide detailed reporting and analysis of your campaigns, allowing you to see precisely how they perform and make data-driven decisions.
10. Mangrovea
📍 Headquarters: Marseille, France
📅 Year Established: 2022
👥 Team Size: 2-10 employees
Mangrovea is a performance-driven email marketing agency focused on creating data-backed email campaigns that drive consistent growth. Their e-mail marketing strategy involves continuously refining campaigns based on real-time performance metrics to ensure the highest possible ROI. Mangrovea specializes in crafting email campaigns that evolve with changing customer behavior, ensuring that businesses can adapt and grow with the times.
Their expertise in email marketing automation allows them to create campaigns that reach customers at the optimal time, boosting engagement and conversions. With a fast-paced, data-driven approach, Mangrovea helps businesses improve their email marketing performance week after week.
They specialize in crafting targeted, highly personalized campaigns that evolve based on customer feedback and campaign results. Their commitment to data-driven optimization ensures that every email sent delivers tangible results, making Mangrovea a trusted partner for businesses looking to improve their email marketing and achieve long-term success.
11. Hustler Marketing
📍 Headquarters: Barcelona, Catalonia, Spain
📅 Year Established: 2018
👥 Team Size: 51-200 employees
Hustler Marketing is a comprehensive digital marketing agency offering a full range of services, including expert email marketing solutions. They specialize in creating highly personalized email campaigns that engage and convert, helping businesses achieve impressive returns on investment. By combining email marketing with SEO, social media, and CRM strategies, Hustler offers a holistic approach to digital marketing.
Their email marketing campaigns are designed to build customer loyalty and increase conversions by delivering the right message at the right time. Hustler’s email marketing strategy is rooted in understanding their clients’ customers and delivering personalized experiences.
Their in-house team works closely with clients to create campaigns, design custom email templates and set up email automation campaigns that are finely tuned to target specific segments, ensuring maximum engagement. Whether it’s through email automation, segmentation, or campaign tracking, Hustler Marketing’s cost effective email marketing firm helps businesses grow their revenue and build long-term relationships with their customers.
12. One 10 Media
📍 Headquarters: Akron, Ohio, United States
📅 Year Established: 2018
👥 Team Size: 2-10 employees
One 10 Media is a leading email marketing agency that excels in driving revenue through cutting-edge email marketing automation. By employing innovative email strategies, they help businesses engage their audiences, boost sales, and achieve impressive results. With a proven track record of delivering a 683% increase in email marketing revenue for past clients, One 10 Media is committed to optimizing every touchpoint in the customer journey.
Their focus on automating email campaigns ensures that each interaction is tailored to customer preferences, enhancing overall engagement and conversion rates. As a top-tier email marketing company, One 10 Media’s approach goes beyond simple campaign execution. Their expert team utilizes data-driven insights to continuously optimize email marketing services, ensuring that each campaign is strategically aligned with the client’s goals.
By leveraging advanced segmentation, personalized messaging, and robust automation tools, they deliver campaigns that resonate with target audiences. Whether it’s through nurturing leads, increasing sales, or improving customer retention, One 10 Media stands out as an email marketing agency that drives measurable success.
Now is the time to engage one of the best email marketing agencies!
13. Coalition Technologies
📍 Headquarters: Los Angeles, California, United States
📅 Year Established: 2009
👥 Team Size: 201-500 employees
Coalition Technologies is an email marketing agency that combines expert branding with powerful email strategies. Specializing in creating personalized and visually compelling email marketing campaigns, they help small businesses craft messages that leave a lasting impression. Their email marketing campaigns not only engage customers but also reinforce brand identity, ensuring businesses stay top of mind.
Coalition’s approach to email marketing automation enables companies to nurture their customer relationships effectively, driving both customer loyalty and conversions. Through a strong focus on email list building and SMS marketing, their email marketers ensure that businesses maintain a consistent and engaging presence across multiple channels from email templates design to email automation.
Their email marketing strategies prioritize personalization, segmentation, and automation, enabling businesses to deliver targeted content that resonates with individual customer preferences. By integrating email campaigns with other marketing efforts, Coalition Technologies maximizes the impact of every interaction, helping businesses strengthen their relationships with their audience and achieve greater marketing success.
14. Enchant Agency
📍 Headquarters: London, England, United Kingdom
📅 Year Established: 2015
👥 Team Size: 11-50 employees
Enchant Agency is a renowned CRO expert who specializes in optimizing email marketing strategies to drive superior ROI for businesses. By analyzing data, performing A/B testing, and developing targeted growth strategies, Enchant ensures that every aspect of email campaigns is fine-tuned for success. Their expertise in email marketing optimization enables businesses to enhance the performance of their campaigns, from improving open rates to maximizing conversions.
Enchant’s comprehensive approach to e-mail marketing strategy ensures that clients get the most out of their email marketing investments. With a focus on actionable insights, Enchant Agency utilizes advanced techniques in email marketing automation to enhance campaign efficiency. Their data-driven strategies help businesses segment their audiences effectively, personalize content, and automate key email flows to increase engagement and drive sales.
Whether you are looking to improve email performance, test new tactics, or implement growth strategies, Enchant’s email marketing firm delivers measurable and sustainable results for clients across industries. They track comprehensive metrics including genuine engagement rates (not just vanity metrics), conversion tracking tied to specific campaign elements, list health indicators, and most importantly, actual revenue attribution so you can take data-driven decisions with ease.
15. Badsender
📍 Headquarters: Montreal, Quebec, Canada
📅 Year Established: 2015
👥 Team Size: 2-10 employees
Badsender is a forward-thinking email marketing company that combines email marketing, digital strategy, and PPC to deliver exceptional ROI for businesses. They focus on leveraging audience insights and AI-driven marketing strategies to create highly targeted campaigns that speak directly to customer needs. Their email strategies are built around personalization and segmentation, ensuring that every email resonates with its recipient.
By utilizing cutting-edge tools and data analytics, Badsender maximizes the impact of each email campaign, leading to improved engagement and higher conversion rates. With a strong emphasis on email marketing automation, Badsender ensures that clients’ campaigns are efficient and effective. By automating email flows, segmenting audiences based on behaviors, and continuously optimizing content, they deliver campaigns that nurture customer relationships and drive business growth.
Their expertise in AI-driven insights, web design, search engine optimization, social media marketing, PPC advertising (Microsoft and Google ads), customer journey mapping, sales funnels and e-mail strategy positions them as a leading agency in the digital marketing space, helping businesses achieve long-term success through well-executed email marketing services.
16. The Good Marketer
📍 Headquarters: London, England, United Kingdom
📅 Year Established: 2017
👥 Team Size: 11-50 employees
The Good Marketer is an email marketing agency that specializes in providing affordable and effective email marketing solutions for small businesses. Their email marketing experts create visually engaging and personalized campaigns that not only attract but also retain customers. By focusing on building strong relationships with audiences while building highly relevant email lists, they ensure higher engagement rates and an increase in ROI.
The Good Marketer’s data-driven approach to email marketing ensures that campaigns are optimized for performance, maximizing the return on every email sent. As a trusted email marketing company, The Good Marketer integrates email marketing automation into their strategies, allowing businesses to scale their efforts while maintaining personalized communication with their customers.
From segmenting email lists to creating dynamic email flows, their team handles every aspect of email campaign management. With a focus on results and a clear understanding of the unique challenges faced by small businesses, eCommerce stores and SaaS companies, The Good Marketer delivers email marketing services that drive growth and success without breaking the bank.
17. Soap Media
📍 Headquarters: Manchester, England, United Kingdom
📅 Year Established: 2005
👥 Team Size: 11-50 employees
Soap Media is an innovative email marketing agency that combines playful branding with highly strategic email marketing solutions. As a certified Google and Meta Partner, they bring a level of expertise and precision to every campaign they manage. Soap Media’s email marketing services focus on delivering high-quality, personalized email campaigns that engage and convert audiences. At Soap Media, they offer monthly email content creation, a campaign strategy, email coding, split testing of subject lines, landing page design and so much more.
With a keen understanding of both creative and technical aspects of email marketing, Soap Media excels in optimizing email marketing strategies that are tailored to each client’s goals. By utilizing advanced segmentation, behavioral triggers, and automation tools, they create personalized campaigns that build strong customer relationships. Their commitment to delivering thoughtful and effective email marketing strategies makes Soap Media a trusted partner for businesses looking to maximize their email marketing impact.
Their dedicated team offers monthly reports for email marketing campaigns. Reports show how a particular campaign performed in the past month, including the open rate, click rate, lead generation, revenue growth and more. Their strategic use of email marketing automation ensures that businesses can efficiently nurture leads, retain customers, and drive sales without overwhelming their teams.
18. FulcrumTech
📍 Headquarters: Philadelphia, Pennsylvania, United States
📅 Year Established: 2004
👥 Team Size: 11-50 employees
FulcrumTech is a results-oriented email marketing company that focuses on leveraging data-driven insights to optimize email campaigns. Using advanced financial modeling tools, they create comprehensive email marketing strategies that are tailored to align with clients’ business objectives. Their email marketing automation ensures that campaigns are streamlined, reducing manual effort while increasing efficiency and accuracy.
By continuously optimizing email flows and content, FulcrumTech helps businesses improve engagement and ROI from their email marketing efforts. As a top email marketing agency, their email marketers offer a range of services designed to help businesses of all sizes enhance their email marketing strategies. From list management and segmentation to A/B testing and automation, they provide end-to-end solutions that drive measurable results.
Their team of experts works closely with clients to ensure that every campaign is fully optimized, from the initial strategy to ongoing performance analysis. With a focus on aligning email marketing with business goals, FulcrumTech delivers exceptional value through data-backed email marketing services.
How to Choose the Right Email Marketing Agency
Start by defining your goals. This list of email agencies are here to answer all your email marketing needs: from strategy to development and execution.
Having a clear understanding of your desired outcomes allows you to evaluate email marketing agencies through the right lens, ensuring you find a partner who can effectively help you achieve those goals.
Next, inquire about the email marketing metrics the agency uses to gauge the success of their campaigns. This is essential to understand because the metrics they rely on will directly influence the results of their email marketing efforts and help you assess their performance accurately.
Finally, review their past success stories. Examining their previous campaigns will provide insights into the types of projects they excel at and whether their expertise aligns with your needs.
What to Expect from an Exceptional Email Marketing Agency
A leading email marketing agency offers a wide array of valuable services and outcomes:
- Strategic Expertise: A proficient email marketing company will design a tailored strategy that aligns with your objectives and resonates with your target audience.
- Creative Content: These agencies craft engaging, personalized content that drives higher open rates and click-through rates. With email marketing, you can send newsletters that discuss business and industry news, send emails to promote new products, send recommendations to past customers, reach out to and nurture leads, and more.
- Segmentation and Targeting: Top email marketing agencies leverage data-driven insights to segment your audience, build relevant email lists and deliver relevant, targeted content to different audience groups.
- Design Excellence: Skilled email marketers ensure that your email designs and templates reflect your brand and are visually appealing.
- Mobile Optimization: Leading agencies ensure that emails are optimized for mobile, ensuring a seamless user experience across smartphones and tablets.
- A/B Testing: They regularly test and optimize email campaigns to maximize performance and drive better results.
- Compliance: Top agencies follow industry regulations like CAN-SPAM and GDPR to ensure your campaigns remain legally compliant.
- Analytics and Reporting: Comprehensive tracking and reporting provide you with actionable insights for ongoing campaign improvements.
- Automation: The best email marketing agencies implement automation strategies, such as lead nurturing workflows and customer retention emails, to enhance efficiency. Email marketing firms use a variety of email service providers (ESPs) to send mass mailings of customized promotional emails on behalf of their clients.
Is Hiring an Email Marketing Agency Worth It?
Absolutely. A skilled email marketing agency will craft a personalized strategy tailored to your specific business goals.
The best agencies help foster meaningful relationships with prospects and customers, driving conversions and boosting customer lifetime value (CLV). When choosing an agency, make sure to select one with a proven track record in your industry and that fits within your budget and cost
Final Thoughts on How to Select the Best Email Marketing Agency
When selecting an email marketing company, consider the best value based on your budget and business goals. The agencies mentioned in this article provide expert services that segment campaigns and target audiences based on demographics.
Whether you’re looking for lead nurturing, promotional emails, or customer engagement, the listed email marketing agencies can help create effective messages that build connections and deliver value to your audience.
Growth Hackers is a highly regarded email marketing company. We cut through the noise to help businesses worldwide thrive. At Growth Hackers, we. don’t believe in fluff but prioritize measurable results. By working with a dedicated email marketing firm, we empower entrepreneurs and business owners to unlock their full potential, boost productivity, generate high-quality leads, optimize conversion rates, analyze key data, and increase both customer acquisition and retention. Our focus goes beyond brand visibility; we implement strategies that drive measurable growth, ensuring your business not only succeeds but excels.
Ready to take your business to the next level? Contact Growth Hackers today to discuss your brand and receive a tailored growth plan. You’re just one click away from transforming your business into a success story.
