7 best email marketing software for agencies [2025]

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If you’re in the market for email marketing software for agencies, a great place to start is by learning more about the most popular and useful ones, as there’s always a reason why they’re at the tops of the lists. 

Having the right email marketing software can provide you with the tools you need to create, implement, and coordinate email campaigns. It can also provide valuable insight into completed campaigns, giving you the chance to determine what went well and which parts could do with a little tweaking.

Choosing the right one can be easier said than done, though. To make the best decision, it’s important to understand what this software can do for your agency and know the key criteria to match it to your needs. This article will help you get familiar with these concepts and provide you with enough knowledge on the subject to make an informed decision.

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TL;DR

Email marketing software can accelerate your clients’ marketing efforts, offering valuable insight into past campaigns and automating key processes. When selecting the right one for your agency, consider your specific needs, choose a pricing structure that fits your budget, and ensure its multi-account management system fits your goals. Some of the best email marketing platforms for agencies are:

Why email marketing software is important for your agency

These are some of the most important reasons why choosing the right email marketing solution is essential for your agency’s success:

Accelerate the performance of your clients

As an agency, your main goal is to help your clients send out effective marketing campaigns. People are different, and not everyone reacts to the same approach, though. The right software solution should make it easy for you to personalize your clients’ campaigns by segmenting their audience based on relevant factors, like their demographics, online behavior, and personal preferences.

Get growth insights with reporting and analytics

Creating a compelling campaign often requires constant tweaking to hit that sweet spot where your message resonates with the audience. A great email marketing software offers relevant and real-time insights into your current campaign performance, showing you the metrics you need to make data-driven and strategic tweaks. This improves results and can help agencies showcase their value to their clients.

Automate processes to serve more clients

Scaling is challenging for any business, and agencies are no different. Email marketing automation simplifies repetitive processes, making it easier to handle more clients without needing extra staff. By streamlining workflows, automation reduces the manual workload, which positions your agency to take on more clients without increasing staffing costs.

Bernard Meyer“Email marketing software is essential for marketing agencies, as it significantly improves campaign performance by enabling targeted and personalized outreach. It also streamlines operations through automation tools and offers in-depth analytics for informed decision-making. Together, these features enhance client satisfaction, boost operational efficiency, and contribute to revenue growth.”

Bernard Meyer, Sr. Director of Communications and Creative

How to choose the best email marketing software for agencies

Now that you know what a good email marketing software solution can do for your agency, it’s time to learn more about choosing the right one for your particular needs and preferences. This is an essential step, as finding the software that fits your profile can help you optimize costs and give you the tools to create the best possible campaigns for your clients. Here are some key factors to consider:

Your agency’s needs

Before making a choice, it’s important to assess your agency’s needs. Are you working with many clients or just a few? Do you prioritize automation to streamline tasks, or are you more focused on in-depth analytics to refine your strategies? As with most decisions, the first step is figuring out what you actually need to support your goals.

Scalable pricing plans

When deciding on the best email marketing software for your agency, it helps to consider the big picture. Determine how much you’re willing to spend today and what you estimate you’ll be able to spend in the future. Some platforms offer free basic plans, allowing you to try them out before figuring out if they work for you. Others offer tier-based pricing based on relevant factors, such as the number of contacts or emails sent.

Use our email pricing calculator below to quickly compare costs and features with other top platforms. Input your desired number of contacts, choose up to two other email marketing providers from the list, and see how Omnisend stacks up against them.

Quick email provider pricing comparison

Quickly and easily compare the top email marketing providers so you can find the best platform for your ecommerce store needs.

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    Multi-client management

    Working with multiple clients can be challenging if you don’t have a platform that supports multi-account management. Having one can help you and your staff manage multiple accounts from a single dashboard — switching from one client to another and managing large contact lists is much easier this way. A good idea is to choose a platform that allows sub-accounts so that each client would have their own space on your main account.

    Email marketing software for agencies 

    SoftwareHighlightCost for 20k ContactsCost for 50k ContactsMulti-Account managementAutomation features
    OmnisendBest overall$120/month$250/monthYesYes
    EmailAnalyticsEmail analysis toolCustom pricingCustom pricingYesYes
    MailmodoBest for interactive emails$99/month$249/monthYesYes
    BrevoMulti-user access$29/month$55/monthNoYes
    KeapBest automation features$719/monthCustom pricingYesYes
    MailerLiteEasy to use$125/month$260/monthNoYes
    SalesforceCustomization featuresCustom pricingCustom pricingYesYes

    Omnisend

    Omnisend homepage
    Image via Omnisend

    Rating: 4.7 on Shopify (5,870+ reviews); 4.5 on G2 (890+ reviews)

    Omnisend is a great choice for agencies, as it comes with a wide variety of ecommerce-oriented features. Its intuitive platform makes it easy to manage multiple accounts and handle large contact lists. It is a comprehensive tool, offering features like landing pages, forms, and push notifications — all designed to help streamline your agency’s workflow and deliver high-impact results for clients. With advanced automation capabilities, Omnisend is highly scalable, so you can manage more clients efficiently without compromising on value. 

    One of the main reasons agencies are drawn to Omnisend is its ease of use, particularly its intuitive email builder, pre-designed templates, and detailed segmentation features. You don’t need to be an email marketing expert to create complex campaigns. As a G2 review by user Andre L. notes, “Crafting beautiful emails is a breeze with their drag-and-drop editor, and the ability to segment and personalize campaigns ensures messages hit the mark.”

    Best features for agencies

    • Offers a wide range of customizable email templates
    • Excellent scaling potential for agencies of any size 
    • Pre-built workflows for every step of the customer journey
    • Detailed segmentation capabilities to improve targeting
    • Multi-account support for easy client management
    • 24/7 live chat and email customer support service provided in under three minutes
    • Flexible and competitive pricing

    Review of Omnisend

    Omnisend is a marketing automation platform that helps online businesses handle email and SMS marketing tasks. It’s a particularly effective tool for agencies of any size because it can seamlessly integrate multiple marketing channels, such as email, SMS, and social media, into a single platform and provides multi-account support for easy client management. 

    Its email templates and automation features can help save time and improve efficiency, while its advanced analytics tools make it easy for marketing professionals to constantly improve all elements of the customer lifecycle map.

    Another feature that makes Omnisend the right tool for a wide variety of agencies and users is its smartly designed pricing model. Its free plan has no time limit, so if you’re just starting out as an agency, this is a great way to limit your spending while still having access to a powerful marketing software platform. As your business grows, you can choose a different plan based on how many clients you have and what their marketing needs are.

    omnisend dashboard
    Image via Omnisend

    Pros

    • Offers a wide range of customizable email templates
    • Excellent scaling potential for agencies of any size
    • Pre-built workflows for every step of the customer journey
    • Detailed segmentation capabilities to improve targeting
    • Multi-account support for easy client management

    Cons

    • Non-ecommerce users might find some features unnecessary

    Pricing

    • Starts from $132/month for 10k contacts
    • Starts from $265/month for 20k contacts
    • Starts from $413/month for 50k contacts

    See full pricing here.

    Omnisend’s Free plan offers access to all Omnisend features for an unlimited time. Send up to 500 emails/month and see why it has over 660 five-star G2 reviews.

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    “As both an ecommerce marketing agency owner, and a Shopify store owner, I know how important email marketing automation is to maximizing sales & conversions. Omnisend offers a reasonably strong and sophisticated capability without the high price and complexity of competing apps.”

    Michael U., G2 review

    EmailAnalytics

    Image via EmailAnalytics

    EmailAnalytics has a few features that benefit agencies. First, it enables you to measure and improve email response time of your sales and customer service reps. This is important because studies have shown that the first vendor to reply to an email is far more likely to land the deal. Second, it comes equipped with AI-powered real-time SLA alerts, which automatically notify your reps when they miss an important email. No more important emails slipping through the cracks!

    Review of EmailAnalytics

    EmailAnalytics helps companies understand what’s going on inside their reps’ inboxes. For agencies, where communication with customers and vendors often happens over email, these analytics are important to have, especially if measuring and improving response time is important (and it should be!). Yet, for most companies, email activity is a blind spot. EmailAnalytics makes it easy to turn that blind spot into a competitive advantage.

    Image via EmailAnalytics

    Pros

    • Compatible with Gmail (Google Workspace) & Outlook (MS365)
    • Packed with features and metrics for any use case
    • No plugins or apps to install. It just works.

    Cons

    • There are so many features, it can be difficult to learn how to use them all

    Pricing

    • Starts at $15/mo per connected inbox, with bulk discounts available

    Mailmodo

    Image via Mailmodo

    Mailmodo is a modern email marketing platform designed to help businesses boost engagement through interactive, AMP-powered emails. It’s especially suited for teams and agencies that want to go beyond static campaigns and drive real actions inside the inbox—like filling out forms, taking surveys, or booking meetings—without redirecting users to a separate webpage.

    Review of Mailmodo

    Image via Mailmodo

    Mailmodo focuses on interactive and automated email marketing, offering robust tools for creating dynamic templates, scheduling campaigns, automating workflows, and analyzing performance. It also supports integrations with major CRMs and marketing tools, allowing businesses to unify their communication stack.

    Mailmodo’s standout feature is its no-code AMP email builder, which allows users to embed forms, calendars, product carousels, and other interactive elements directly into emails—making it an ideal choice for performance-driven marketers.

    The platform also offers transactional emails, detailed analytics, and a library of ready-to-use templates. Its pricing plans cater to startups, SMBs, and growing teams alike, making it flexible for varying needs.

    Image via Mailmodo

    Pros

    • Interactive AMP email support
    • No-code email builder
    • High deliverability and dedicated support

    Cons

    • Higher cost for advanced features

    Pricing

    Custom pricing for higher volumes and enterprise features

    • $39/month for 2,500 contacts
    • $249/month for 25,000 contacts

    Brevo

    brevo homepage
    Image via Brevo

    Formerly known as Sendinblue, Brevo can be a good choice for agencies looking for a beginner-friendly and attractively priced email marketing solution. These qualities make it the right tool for small agencies, but it’s also scalable up to a point due to its multi-user access and automation workflows. 

    Review of Brevo

    Brevo is a marketing platform that aims to provide small and medium-sized businesses with all the marketing and customer management tools they need. This includes email and SMS marketing, automation tools, and built-in CRM software. Its interface is intuitive and easy to use, making it an appropriate tool even for marketers with limited tech experience. Its overall purpose is to help businesses that are just starting out take the next steps and establish themselves in their respective markets.

    Brevo’s platform is divided into multiple sub-platforms. The marketing section includes tools for email and SMS marketing, plus automation features and support for other mobile marketing approaches. The sales platform helps professionals stay on top of their client lists with features like sales pipelines, customer profiles, and schedule tools. There’s also a customer service platform that offers multiple communication options, including live chat and email, to make customers’ contact with you accessible.

    brevo dashboard
    Image via Medium

    Pros

    • Multi-user access
    • Detailed reporting and analytics

    Cons

    • Fluctuating deliverability scores

    Pricing

    • $9/month for 500 contacts and 5000 emails
    • $18/month for extra features, plus $12/month for each new user
    • Enterprise solution for large organizations

    Keap

    keap homepage
    Image via Keap

    Previously called Infusionsoft, Keap is a great tool for small agencies looking for a platform to automate many of their processes. Its integrated CRM coordinates both marketing and sales operations. Keap can be an appropriate starting point for agencies that are just starting to implement email marketing software into their operations.

    Review of Keap

    This marketing automation tool and CRM is built specifically for small businesses and agencies, designed to help them grow by automating repetitive and time-consuming tasks. It simplifies lead generation, product trials, and follow-ups with automation features that take these tasks off their hands. Its integrated CRM also comes in handy, as it can help sales and marketing professionals track and manage both potential and existing customers efficiently.

    Keap’s interface is also suitable for smaller businesses, as it offers straightforward and intuitive solutions to complex issues. It’s divided into multiple sections to meet different needs. The Organize section helps small agencies automate their tasks and keep track of customer interactions. The Market section has all marketing-related tools, including lead capture and management, email marketing, and SMS marketing. The Sell section focuses on all sales-oriented features, while the Grow section helps small businesses keep track of their scaling efforts.

    Pros

    • Multi-account management
    • Advanced automation workflows
    • All-in-one tool for sales and marketing tasks

    Cons

    • Higher cost for larger contact lists

    Pricing

    • $299/month for 1,500 contacts
    • $449/month for 6,500 contacts
    • $539/month for 11,500 contacts

    MailerLite

    mailerlite homepage
    Image via MailerLite

    MailerLite can be an appropriate tool for agencies looking for a user-friendly email marketing platform that’s also competitively priced. It lacks the all-in-one approach that some of its competitors offer but may appeal to those needing a simple and straightforward approach to email marketing.

    Review of MailerLite

    This email marketing software platform can support small and medium-sized agencies with every aspect of their email marketing approach. Its simple and easy-to-use interface allows marketing professionals to focus on their campaigns without spending time wandering through endless lists of features. The platform’s drag-and-drop email editor is also particularly appealing to non-techy individuals, enabling anyone to create expertly designed emails without needing any coding knowledge.

    MailerLite’s feature set is just as intuitive. The email marketing tools let you create engaging emails, target specific audiences, and automate various tasks with ease. The platform also includes a website and blog builder tool, while the lead collection feature bundle provides easy access to features like landing page builders and signup forms. It even provides tools for setting up a basic online store, making it straightforward to integrate your ecommerce efforts with your email marketing efforts.

    mailerlite dashboard
    Image via RemoteCompany

    Pros

    • Easy to use
    • Affordable

    Cons

    • Limited advanced features

    Pricing

    • $28/month Starter plan
    • $88/month Professional plan
    • Enterprise solution for larger organizations

    Salesforce

    salesforce homepage
    Image via Salesforce

    Salesforce is a suitable choice for larger agencies that need enterprise-level features like multi-user collaboration and detailed analytics. It promotes teamwork across departments, making it ideal for agencies that rely on efficient team collaboration. While its main feature is the CRM, it also offers advanced email marketing features that can help agencies create, implement, and analyze complex campaigns.

    salesforce dashboard
    Image via TechTarget

    Review of Salesforce

    This cloud-based platform provides a wide range of tools for agencies to manage their marketing, sales, commerce, and customer service operations. One of the qualities that sets it apart from its competitors is its high degree of customization. Each business can adapt Salesforce to its own workflow and scale it as its requirements change. Although having these customization features makes Salesforce an appropriate tool for agencies of all sizes, the higher cost for its advanced features orients it more toward larger organizations.

    Its core feature is its CRM but it also has separate platforms for different purposes, called clouds. The marketing cloud provides agencies with features to help them create diverse marketing campaigns for their customers and improve them based on data and analytics. Salesforce also comes with automation and segmentation tools to streamline marketing operations and ensure agencies deliver effective and targeted campaigns.

    Pros

    • Multi-user collaboration
    • Comprehensive analytics

    Cons

    • Higher cost for advanced features

    Pricing

    • $1,250/month Pro plan
    • $4,200/month Corporate plan
    • Enterprise solution for larger organizations

    Summary 

    When choosing the best email marketing software for agencies, the first step is to make sure you fully understand what they can do for you and your agency. You can then consider the different factors that go into choosing the right platform based on your specific goals and priorities. 

    To summarize, if you’re looking for one that’s both easy to use and can execute complex tasks, consider Omnisend as your email marketing partner. Brevo may be the best choice for beginners due to its user-friendly approach, MailerLite is ideal for agencies on a tight budget, while ActiveCampaign works well for agencies who want a single tool for email marketing and CRM.

    How we chose this list of the best email marketing software for agencies

    The criteria we used when selecting these email marketing solutions for agencies are based on the functionality of each platform, ratings on third-party sites, and our own hands-on experience testing these tools. This led us to including functional and easy-to-use email creation tools, as well as those that have features to help automate tasks and segment audiences. We also evaluated those with a scalable payment plan as we consider this to be an important factor.

    Richard White
    Article by

    Richard is a Content Marketing Manager at Omnisend. An avid writer, he's said to have been born holding a pencil. Fascinated by all things handmade, if he's not reading or writing he can often be found practicing leathercraft.


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