Independently tested ranking
Best Email Marketing Software for Agencies in 2026
9 email platforms compared on client account management, white-label options, automation depth, reporting and cost per client, to find the best email marketing software for agencies.
- Tools compared
- 9
- With a free plan
- 5 of 9
- Median entry price
- $13/mo
- Average rating
- 4.4
On this page
- Quick answer
- Our top picks
- Key takeaways
- What is email marketing software?
- Comparison table
- The 9 best email marketing software
- Best email marketing software by need
- What to look for
- How much email marketing software cost
- How we ranked them
- How to choose email marketing software
- FAQ
- About the reviewer
- Related rankings
Which email marketing software is best for agencies?
The best email marketing software for agencies in 2026 is HighLevel for white-label resale with unlimited client sub-accounts, Campaign Monitor for client newsletters with separate client accounts and billing, Klaviyo for ecommerce clients, ActiveCampaign for advanced automation retainers and Brevo for many small clients on a budget. HighLevel's Unlimited plan costs $297 a month for unlimited sub-accounts, while Brevo starts at $9 a month per account.
Our top picks
Best overall for agencies
HighLevel
Unlimited client sub-accounts, white-label branding and SaaS resale make it the most complete agency platform.
Paid plans from $97/mo
See why we picked itBest for client newsletters
Campaign Monitor
Separate client accounts, client billing and polished templates suit agencies producing branded campaigns.
Paid plans from Varies by list size
See why we picked itBest for ecommerce clients
Klaviyo
Store data sync and revenue reporting per flow give you hard numbers to show every ecommerce client.
Paid plans from $20/mo
See why we picked itKey takeaways
- HighLevel and Campaign Monitor are built around multi-client work: separate client accounts managed from one login.
- For ecommerce clients, Klaviyo is the standard, and Omnisend is the cheaper option for small stores ($11.20/mo vs $20/mo entry).
- Decide who pays early. Client-owned accounts are easier to hand over; agency-owned or white-label accounts turn software into recurring revenue.
- Check seats per plan before you commit. Mailchimp Essentials includes 3 seats, Brevo Standard 3 and MailerLite Power unlimited.
- Most tools price by contacts per account, so your real cost is the sum of every client's list size, not one plan price.
What is email marketing software?
The best email marketing software for agencies is a platform that lets one team build, send and report on email campaigns for many clients while keeping each client's contacts, campaigns and results separate. Good agency tools add client sub-accounts, team seats, reusable templates and automations, and clear reporting you can share with clients.
Email marketing software for agencies also has to fit your business model. Some agencies work inside each client's own account, some keep all clients under one agency account, and some white-label a platform and resell it. The right email marketing platform for agencies makes client onboarding fast, shows the revenue or leads your work produces, and keeps cost per client predictable.
Best email marketing software compared
| # | Tool | Best for | Free plan | Paid plans from | Our rating |
|---|---|---|---|---|---|
| 1 | HighLevel | White-label client platform | No (14-day trial) | $97/mo | Not yet reviewed |
| 2 | Campaign Monitor |
Client newsletters and design | No (free test account) | Varies by list size | ★4.3 |
| 3 | Klaviyo |
Ecommerce client accounts | Yes (250 profiles) | $20/mo | ★4.7 |
| 4 |  ActiveCampaign |
Advanced client automations | No (14-day trial) | $15/mo annual | ★4.5 |
| 5 |  Brevo |
Low-cost client accounts | Yes (300 emails/day) | $9/mo | ★4.4 |
| 6 |  Mailchimp |
Clients already on Mailchimp | Yes (250 contacts) | $8.89/mo | ★4.1 |
| 7 |  Omnisend |
Small ecommerce stores | Yes (250 contacts) | $11.20/mo | ★4.5 |
| 8 |  MailerLite |
Easy, affordable client handover | Yes (250 subscribers) | $12/mo | ★4.6 |
| 9 |  GetResponse |
Funnels and webinars | Limited, after trial | €13.12/mo annual | ★4.2 |
Ratings are MakeSuccessOnline's. Prices are the cheapest paid plan, billed monthly unless marked annual, checked November 2026. Most prices are per client account and rise with list size.
The 9 best email marketing software in 2026
No single email tool wins for every agency. The right pick depends on your clients and how you bill, so each tool below leads a specific type of agency work.
#1Best for agencies that want to white-label and resell
HighLevel
An all-in-one agency platform that bundles CRM, funnels, websites, email, SMS, calendars and automation, and can be rebranded and resold to clients.
- Paid plans from
- $97/mo
- Free plan
- No (14-day trial)
- Best for
- Marketing agencies and consultants serving local and small businesses
- Works on
- Web, iOS, Android (LeadConnector mobile app)
HighLevel turns email marketing into one part of a bigger agency offer. Instead of logging into a separate email tool for each client, you run every client from one agency dashboard, each in its own sub-account with contacts, pipelines, funnels and campaigns kept apart. For agencies serving local businesses, that means email, texts, bookings and reviews all live in the same place.
The business model is the real draw. White-label branding lets you run the platform under your own brand, and SaaS mode on Agency Pro lets you resell it to clients as your own software with automated billing. The trade-offs are a steep learning curve and a crowded interface, and phone, SMS and email sending are billed on top of the plan, so price usage into each retainer.
Key features
- Client sub-accountsEach client gets its own workspace with contacts, pipelines and campaigns, all managed from one agency dashboard. Unlimited sub-accounts start on the $297 Unlimited plan.
- White label and SaaS modeRebrand the platform for your agency. On Agency Pro, SaaS mode lets you resell it to clients as your own software with automated billing, which turns software into recurring agency revenue.
- WorkflowsA visual builder automates follow-up across email, SMS and other channels, triggered by forms, bookings, tags and more, so one lead-nurture setup can be copied across similar clients.
- Email marketingBuild and send email campaigns and automated sequences to each client's contacts from inside their sub-account.
- Unified conversationsSMS, email, Facebook, Instagram and web chat replies land in one inbox per sub-account, so your team or the client can follow up quickly.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Starter | $97/mo | CRM, funnels, websites, email and SMS marketing, workflows and calendars, with limited sub-accounts |
| Unlimited | $297/mo | Everything in Starter with unlimited sub-accounts, API access and a branded desktop app |
| Agency Pro | $497/mo | Everything in Unlimited plus SaaS mode to resell HighLevel to clients under your own brand |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. 14-day free trial. Phone, SMS and email sending are billed on top of the plan.
Pros and cons
Pros
- Replaces several separate tools for each client
- Unlimited client sub-accounts from $297/mo
- Can be white-labeled and resold as your own software
- Very active product development
Cons
- Steep learning curve and a crowded interface
- Phone, SMS and email sending are billed on top of the plan
- Expensive if you only need email for a few clients
Is it right for you?
Choose HighLevel ifYou serve local or small business clients and want to sell email, SMS, funnels and CRM as one branded package with recurring revenue.
Look elsewhere ifYou only run email campaigns for brands that already have their own email platform and do not want to move them.
#2Best for agencies sending branded newsletters for clients
Campaign Monitor
An email marketing platform known for polished templates and a drag-and-drop builder, with tools for agencies managing many client accounts.
- Paid plans from
- Varies by list size
- Free plan
- No (free test account)
- Best for
- Marketing teams and agencies that send branded newsletters and campaigns
- Works on
- Web, API
Campaign Monitor suits agencies whose email work is mostly design-led newsletters and campaigns. Its agency and client account setup lets you keep each client's lists and campaigns in a separate account while you work from one login. That separation matters when you report to each client and when you onboard or offboard an account.
Client billing is the other agency feature: you can set your own prices and bill clients for sending through the platform, rather than paying for every account yourself. The drag-and-drop builder and template library make on-brand emails quick to produce. For complex ecommerce automation or lead scoring, Klaviyo or ActiveCampaign go further.
Key features
- Agency and client accountsManage separate client accounts from one login, so each client's lists, campaigns and reports stay apart.
- Client billingSet your own prices and bill clients for sending through the platform, which keeps software costs off your agency's books.
- Drag-and-drop email builderBuild responsive, on-brand emails from blocks without code, using a large template library. Junior staff can produce client-ready emails fast.
- Journeys automationVisual workflows for welcome series and date-based emails, enough for most newsletter and nurture programs.
- ReportingOpens, clicks, geography and link activity for each campaign, the numbers most clients expect in a monthly report.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Lite | Higher | Drag-and-drop builder, templates, basic automation and segmentation |
| Essentials | Higher | Unlimited sends, advanced automation and A/B testing |
| Premier | Higher | Advanced segmentation, send-time optimization and priority support |
Plans are priced by contact count, so cost depends on each client's list size; check the vendor's pricing page before you buy. A free account lets you build campaigns and send tests before upgrading.
Pros and cons
Pros
- Long-standing multi-client tools for agencies
- Clients can be billed through the platform
- Polished templates and an easy builder
- Reliable deliverability reputation
Cons
- No permanent free plan
- Automation is lighter than ActiveCampaign or Klaviyo
- Product development has slowed since the ownership changes
Is it right for you?
Choose Campaign Monitor ifYour agency produces design-led newsletters and campaigns for several clients and you want separate client accounts with billing built in.
Look elsewhere ifYour clients are ecommerce brands that need deep revenue-based automation.
#3Best for agencies with ecommerce clients
Klaviyo
An email, SMS and customer data platform built for ecommerce brands, using store data to power automated flows, segments and revenue reporting.
- Paid plans from
- $20/mo
- Free plan
- Yes (250 profiles)
- Best for
- Ecommerce and DTC brands, especially on Shopify, and the agencies that serve them
- Works on
- Web, iOS, Android, API
Klaviyo is the default choice for agencies that run email and SMS for ecommerce brands. It connects to Shopify, WooCommerce, BigCommerce, Adobe Commerce, Wix and Salesforce Commerce Cloud, and syncs orders, refunds, products and browsing events. That data powers segments and flow triggers, so the client programs you build react to what shoppers actually do.
For agencies, the biggest benefit is proof. Revenue reporting attributes orders to each campaign, flow and message, so monthly client reports show money made, not just opens. Pre-built welcome, cart, browse abandonment, post-purchase and win-back flows also shorten onboarding for each new store. The catch is cost, which rises with every client's active profiles.
Key features
- Revenue reportingAttributes orders and revenue to each campaign, flow and message, so you can prove the value of your retainer with real numbers.
- Pre-built revenue flowsWelcome, abandoned cart, browse abandonment, abandoned checkout, post-purchase and win-back flows you can switch on for a new client and refine later.
- Store data syncOrders, refunds, products, catalog and browsing events flow in from the store automatically, so segments and triggers stay current without manual imports.
- Predictive analyticsPredicted lifetime value, churn risk and expected next order date per profile, useful for building replenishment and win-back programs for clients.
- SMS and MMSText campaigns and automated SMS flows run from the same customer profile as email, as a paid add-on, so one agency team can run both channels.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Up to 250 active profiles and 500 emails a month, limited reviews and customer hub |
| $20/mo | 500 active profiles, 5,000 emails a month, full flows, segmentation and reporting; price rises with list size | |
| Marketing | $25/mo | Email plan features plus unlimited review orders, with AI and helpdesk tools as add-ons |
| Custom | Custom | Over 150,000 active profiles, priced through sales |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Prices rise with active profiles, and SMS is a paid add-on.
Pros and cons
Pros
- Deepest use of store data among email tools
- Clear revenue attribution per flow and message for client reports
- Email, SMS and reviews on one customer profile
- Free plan lets small clients start at no cost
Cons
- Cost climbs quickly as active profiles grow
- SMS and some products are add-ons on top of the email price
- Less suited to B2B or non-ecommerce clients
Is it right for you?
Choose Klaviyo ifMost of your clients run online stores and judge your work by revenue from email and SMS.
Look elsewhere ifYour clients are B2B, SaaS or local service businesses without an online store.
#4Best for agencies building complex client automations
ActiveCampaign
An email marketing and marketing automation platform known for flexible branching automations, with CRM, lead scoring and ecommerce integrations.
- Paid plans from
- $15/mo annual
- Free plan
- No (14-day trial)
- Best for
- Small and mid-sized businesses, SaaS, B2B and ecommerce marketers
- Works on
- Web, iOS, Android, API
ActiveCampaign is the pick for agencies whose value is in the automation itself. Its builder combines store events, email engagement, site visits and tags in branching paths, which suits clients with long buying cycles such as B2B, SaaS and high-ticket services. Lead scoring and a built-in CRM let you hand sales-ready leads to the client's team.
Automation recipes help you start each client from a proven template instead of a blank canvas, and site tracking lets you trigger emails from page visits. It also covers ecommerce clients, with Shopify, WooCommerce and Square on every plan. Each client pays by contact count, so costs grow with their list and no free plan exists for very small clients.
Key features
- Advanced automation builderCombine store events, email engagement, site visits and tags in branching automations. This is where agencies can build programs clients could not set up alone.
- Automation recipesStart from a large library of pre-built automation templates and adapt them to each client's funnel, which cuts setup time per account.
- Lead scoring and CRMScore contacts by behavior and pass hot leads into a sales pipeline, ideal for B2B, SaaS and high-ticket clients.
- Site trackingTrack which pages known contacts visit and use those visits to trigger automations or build segments.
- Split testingTest subject lines and content in campaigns and split paths inside automations, so you can show clients measured improvements.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Starter | $15/mo annual | 1,000 contacts; email, automations, abandoned cart and Shopify, WooCommerce and Square integrations; price rises with list size |
| Plus | Higher | Starter features plus more automation, landing pages and reporting |
| Pro | Higher | Premium store integrations, predictive sending and more reporting |
| Enterprise | Custom | Premium CRM integrations and dedicated support |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. 14-day free trial, no card required.
Pros and cons
Pros
- Very flexible automation logic
- Lead scoring and CRM for B2B or high-ticket clients
- Abandoned cart on every plan
- Large integration library
Cons
- No free plan
- BigCommerce, Magento and Shopify Plus need the Pro plan
- Price rises quickly with contact count
Is it right for you?
Choose ActiveCampaign ifYour agency sells lifecycle and lead-nurture automation to B2B, SaaS or service clients and needs branching logic and lead scoring.
Look elsewhere ifYour clients mostly send simple newsletters, or you need white-label resale.
#5Best for agencies with many small, budget-conscious clients
Brevo
A marketing platform for email, SMS, WhatsApp and transactional messages, with plans priced by monthly email volume.
- Paid plans from
- $9/mo
- Free plan
- Yes (300 emails/day)
- Best for
- Small and mid-sized businesses, ecommerce stores and developers
- Works on
- Web; API and SMTP relay
Brevo is the budget choice for agencies with a long tail of small clients. Pricing is driven mainly by monthly email volume, so a client with a large list that emails twice a month can cost far less than on a per-contact tool. Each client can also send order confirmations and receipts through the same account, since transactional email is on every plan.
For most client work, Standard at $18 a month is the plan to pick: it adds automation, A/B testing, send time optimization, advanced reporting and up to 3 seats, and removes the Brevo logo. Larger agencies can move to Enterprise for multi-account management. SMS is available with credits bought separately, which helps clients who want texts too.
Key features
- Multi-account managementOn the Enterprise plan, manage several accounts from one place, which suits agencies running many client programs.
- Volume-based pricingPlans are priced by monthly email volume rather than only list size, which keeps costs down for clients with big lists and low send frequency.
- Marketing automationUnlimited multi-step workflows triggered by behavior and events, on Standard and higher.
- Transactional emailEvery plan, including Free, sends order confirmations and receipts through the API or SMTP relay, so one account covers a client's marketing and system emails.
- SMS marketingSend SMS campaigns and transactional texts using credits bought separately, so you can add texting to a client retainer without a second tool.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 300 emails a day, email campaigns, transactional email, forms, Brevo branding |
| Starter | $9/mo | From 5,000 emails a month (500 contacts), 1 seat, editor, templates, AI content generator, segmentation; logo removal is a $12/mo add-on |
| Standard | $18/mo | Starter plus automation, A/B testing, advanced reporting, send time optimization, up to 3 seats, no Brevo logo |
| Professional | $499/mo | From 150,000 emails a month, 10 seats, WhatsApp, popups, push, contact scoring, phone support |
| Enterprise | Custom | Multi-account management, custom objects, dedicated IP, SSO/SAML, tailored onboarding |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Annual billing saves 10%. SMS credits are sold separately.
Pros and cons
Pros
- Low entry price and a free plan
- Pricing driven by email volume rather than only list size
- Marketing and transactional email in one account
- SMS and WhatsApp available in the same platform
Cons
- Automation requires Standard or higher
- Multi-account management is only on Enterprise
- Big price jump to Professional for more seats and WhatsApp
Is it right for you?
Choose Brevo ifYou manage many small clients who need email, transactional messages and some SMS at the lowest possible cost.
Look elsewhere ifYour clients are larger ecommerce brands that need Klaviyo-level revenue reporting.
#6Best for clients who already use Mailchimp
Mailchimp
An email marketing platform with automation flows, forms, landing pages and reporting, priced by contact count.
- Paid plans from
- $8.89/mo
- Free plan
- Yes (250 contacts)
- Best for
- Small and mid-sized businesses, ecommerce stores and nonprofits
- Works on
- Web, iOS, Android
Mailchimp is often the platform your client already uses, and moving them is not always worth the disruption. Its drag-and-drop editor and templates are easy for non-technical clients to learn, so you can build the program and the client can still send a quick update without calling you. Over 300 integrations, including Shopify, WooCommerce, Square and Salesforce, cover most client stacks.
For agency work, plan seats matter. Essentials includes 3 seats, Standard 5 and Premium unlimited, so your team can work in a client's account with its own login. Real automation needs Standard, which adds up to 200 branching flows, dynamic content and custom reports. Watch costs: billing follows contact count, and headline prices include a 12-month promotion.
Key features
- Team seats on paid plansEssentials includes 3 seats, Standard 5 and Premium unlimited, so agency staff can work in a client account with their own login.
- Marketing Automation FlowsWelcome series and abandoned cart flows; Standard and Premium allow up to 200 flows with branching and multiple starting points.
- Email Builder and templatesA drag-and-drop editor clients can use themselves, plus custom-coded templates on Standard and Premium for agency-built designs.
- Predictive segmentsStandard and Premium add purchase likelihood and customer lifetime value segments for ecommerce clients.
- Forms, landing pages and surveysPop-up and embedded forms, landing pages and surveys on every plan, so list growth work stays in the same account.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 250 contacts, 500 sends a month (250 a day), 1 seat, 1 audience, Mailchimp branding |
| Essentials | $8.89/mo | 500 contacts, 3 seats, 3 audiences, scheduling, A/B testing, flows up to 4 steps; $4.45/mo for the first 12 months on the current offer |
| Standard | $13.31/mo | 500 contacts, 5 seats, 5 audiences, up to 200 branching flows, generative AI, send time optimization, predictive segments; $6.66/mo for the first 12 months on the current offer |
| Premium | $266.30/mo | 500 contacts, unlimited seats and audiences, enterprise SSO, phone and priority support, multivariate testing |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Paid plans are currently 50% off for the first 12 months, and prices rise with contact count.
Pros and cons
Pros
- Very easy editor for non-technical clients
- Large integration directory (300+)
- Several seats on every paid plan
- Free plan for very small lists
Cons
- Price climbs quickly as contact count grows
- Essentials flows are limited to 4 steps
- Headline prices are 12-month promotional rates
Is it right for you?
Choose Mailchimp ifYour clients already use Mailchimp and want a familiar tool they can keep using after your project ends.
Look elsewhere ifYou manage clients with large lists on tight budgets, or ecommerce clients that need deep revenue automation.
#7Best for agencies managing small Shopify and WooCommerce stores
Omnisend
An ecommerce marketing platform that combines email, SMS and web push with ready-made store workflows.
- Paid plans from
- $11.20/mo
- Free plan
- Yes (250 contacts)
- Best for
- Small and mid-sized ecommerce stores and the agencies that run them
- Works on
- Web; store apps for Shopify, WooCommerce, BigCommerce and Wix
Omnisend is a practical fit for agencies that run several smaller online stores. It connects to Shopify, WooCommerce, BigCommerce and Wix, and its ready-made cart abandonment, browse abandonment, welcome, order confirmation and win-back workflows start working once the store is linked. That keeps onboarding short for each new store client.
Email, SMS and web push sit in the same workflows, so you can add a text step for shoppers who ignore email. Standard starts at $11.20 a month, well below Klaviyo's entry plan, and support is available 24/7 on every plan. For bigger brands with complex data needs, Klaviyo's segmentation and reporting go deeper.
Key features
- Pre-built ecommerce workflowsCart abandonment, browse abandonment, welcome, order confirmation and win-back workflows that work as soon as a client's store is connected.
- SMS and web push in workflowsAdd SMS steps (Pro plan) and web push notifications to the same workflow as email, to recover carts from shoppers who ignore email.
- Product picker and discount blocksDrop products into emails with images and prices filled in, plus unique discount codes created in the store, which speeds up campaign production.
- Popups and signup formsPopups, embedded forms and landing pages on every plan, so list growth and follow-up live in one client account.
- Sales reportingOrders and revenue generated by each campaign and workflow, with more detailed reports on Pro.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 250 contacts, 500 emails a month, pre-built workflows, popups and segmentation |
| Standard | $11.20/mo | 500 contacts, 6,000 emails a month, custom workflows, unlimited web push, no Omnisend branding |
| Pro | $41.30/mo | 2,500 contacts, unlimited emails, SMS billed per message, product recommender options, advanced reporting |
| Custom | Custom | Over 150,000 active profiles |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. Prices rise with list size, and SMS is billed per message.
Pros and cons
Pros
- Core revenue workflows ready on day one
- Lower entry price than Klaviyo
- Popups, email, SMS and push in one account
- 24/7 support on every plan, including free
Cons
- Segmentation and reporting are less detailed than Klaviyo
- SMS needs the Pro plan
- Fewer store platforms than Klaviyo or Mailchimp
Is it right for you?
Choose Omnisend ifYou run email and SMS for several small Shopify or WooCommerce stores that cannot justify Klaviyo's cost.
Look elsewhere ifYour clients are non-ecommerce businesses or large brands that need advanced data and reporting.
#8Best for agencies handing email over to clients
MailerLite
An easy-to-use email marketing tool with automations, landing pages, websites and digital product sales at low prices.
- Paid plans from
- $12/mo
- Free plan
- Yes (250 subscribers)
- Best for
- Small businesses, creators, nonprofits and ecommerce stores
- Works on
- Web
MailerLite is a good choice when your agency builds the program and then hands it over. The drag-and-drop builder and visual automations are easy for clients to learn, so they can keep sending without paying you for every update. Low prices also make it an easy recommendation for small businesses, creators and nonprofits on tight budgets.
It covers more than email. Each account can build landing pages, websites and pop-ups, and sell digital products and bookings, which helps when a client needs a simple site and list growth together. Comfort includes 3 seats and Power unlimited seats, so your team can stay involved. Ecommerce reporting is basic compared with Klaviyo or Omnisend.
Key features
- Seats for your team and the clientFree includes 2 seats, Comfort 3 and Power unlimited, so agency staff and client staff can work in the same account.
- Automation builderVisual automations with templates for welcome series, abandoned carts and more. Power adds multiple triggers per automation.
- Landing pages and websitesBuild landing pages, a website or a blog without another tool, useful for small clients who need list growth and a site together.
- A/B testingTest subject lines and content on every plan, including free, so you can show clients measured results from day one.
- Ecommerce integrationsConnect Shopify, WooCommerce or Stripe to sync customers and products for segments, product blocks and cart emails.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | 250 subscribers, 2,500 emails a month, 3 automations, 1 website, 1 landing page, 3 forms, 2 seats |
| Comfort | $12/mo ($10.80/mo annual) | 500 subscribers, 50 automations, 10 forms, 10 sites, 3 seats, logo removal, full API, RSS campaigns |
| Power | $25/mo ($22.50/mo annual) | 500 subscribers, unlimited emails (fair use), unlimited automations, forms, sites and seats, live chat support |
| Enterprise | Custom | 200,000+ subscribers, priority and deliverability support, dedicated IP add-on |
List prices as of November 2026; plans change often, so check the vendor's pricing page before you buy. 14-day trial of premium features for new accounts. Annual billing saves 10%.
Pros and cons
Pros
- Very easy for clients to learn
- Low prices for small lists
- Websites, landing pages and digital products included
- A/B testing even on free
Cons
- Free plan limited to 250 subscribers and 2,500 emails
- Ecommerce segmentation and reporting are basic
- No built-in SMS
Is it right for you?
Choose MailerLite ifYou set up email programs for small businesses, creators or nonprofits that will run them day to day after handover.
Look elsewhere ifYour clients need SMS or detailed ecommerce revenue reporting.
#9Best for agencies running full funnels and webinars for clients
GetResponse
An email marketing platform with automation, landing pages, conversion funnels, webinars and a course creator.
- Paid plans from
- €13.12/mo annual
- Free plan
- Limited, after trial
- Best for
- Small businesses, creators and marketers
- Works on
- Web, iOS, Android
GetResponse fits agencies that sell launches, lead generation and webinar campaigns rather than newsletters alone. Conversion funnels connect landing pages, signup forms, emails and sales pages, so you can build a client's lead magnet or product launch without stitching tools together. Abandoned cart recovery and revenue reports on Marketer cover ecommerce clients too.
The Creator plan adds live and on-demand webinars, a course creator and a website builder, which suits coaches, consultants and educators. Every paid plan includes unlimited email sends. Plans are listed in euros and priced by contacts, and the dashboard can feel crowded, so budget time to train clients who will log in themselves.
Key features
- Conversion funnelsPre-built funnels link landing pages, signup forms, emails and sales pages for client lead capture and product launches. Marketer and above.
- WebinarsHost live and on-demand webinars and email registrants automatically, on Creator and above, without a separate webinar tool.
- Marketing automationWorkflows triggered by signups, clicks, purchases and tags. Starter includes one automation; Marketer and above are unlimited.
- Landing pages and popupsLanding pages, signup forms and popups on every plan to grow each client's list.
- Abandoned cart recoveryAutomated emails to shoppers who leave items in their cart, on Marketer and above.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | A limited free version after the trial ends |
| Starter | €13.12/mo annual | 1,000 contacts, unlimited sends, landing pages, signup forms, welcome series and 1 automation |
| Marketer | €44.28/mo annual | 1,000 contacts, unlimited automations, sales funnels, abandoned cart recovery and revenue reports |
| Creator | €50.84/mo annual | Marketer plus webinars, website builder, course creator and premium newsletters |
| Enterprise | Custom | SMS, transactional email, dedicated IP, SSO and priority support |
List prices in euros as of November 2026; plans change often, so check the vendor's pricing page before you buy. Monthly billing costs about 18% more. 14-day free trial, no card required.
Pros and cons
Pros
- Funnels, webinars and courses in one tool
- Unlimited sends on every paid plan
- Free version after the trial
- Good for coaching and course clients
Cons
- Only one automation on Starter
- Webinars and courses need the Creator plan
- Dashboard feels crowded
Is it right for you?
Choose GetResponse ifYou run lead generation, launches or webinar campaigns for coaches, consultants or educators and want it all in one account.
Look elsewhere ifYour clients only need simple newsletters, or you need advanced multi-step funnel design.
Best email marketing software by need
- White-label resale to clientsHighLevel
- Design-led client newslettersCampaign Monitor
- Ecommerce and DTC clientsKlaviyo
- B2B and SaaS nurture programsActiveCampaign
- Many small clients on a budgetBrevo
- Clients already on MailchimpMailchimp
- Small Shopify and WooCommerce storesOmnisend
- Handing email over to clientsMailerLite
- Funnels and webinar campaignsGetResponse
What to look for in email marketing software
- Client sub-accountsSeparate workspaces per client, managed from one login, so lists, campaigns and reports never mix. HighLevel, Campaign Monitor and Brevo Enterprise offer this.
- White label and resaleIf you want to sell software as part of your retainer, look for rebranding and rebilling. HighLevel's SaaS mode is built for this.
- Team seats and permissionsAgency staff need their own logins in each client account. Check how many seats each plan includes before you price a retainer.
- Reusable automations and templatesRecipes, pre-built flows and template libraries let you copy proven programs to new clients instead of rebuilding them.
- Client-ready reportingRevenue attribution per campaign and flow (Klaviyo, Omnisend) or clear opens, clicks and link reports (Campaign Monitor) make monthly client reports easy.
- Predictable cost per clientPer-contact pricing grows with every client's list. Volume-based pricing (Brevo) or flat agency pricing (HighLevel) can be cheaper across many small clients.
How much does email marketing software for agencies cost in 2026?
Agency email costs depend on whether you pay per client account or for one agency platform. Per-account tools start at about $9 to $20 a month for a small list, while agency platforms with unlimited client sub-accounts cost $297 a month or more.
| Tier | Typical price | Tools at this level | Who it suits |
|---|---|---|---|
| Free | $0 | Brevo, Klaviyo, Mailchimp, MailerLite, Omnisend, GetResponse (limited, after trial) | Very small clients or testing a new client program |
| Per-client entry | About $9 to $20/mo per account | Brevo, Mailchimp, Omnisend, MailerLite, GetResponse Starter (annual, in euros), ActiveCampaign (annual), Klaviyo | Agencies working inside each client's own account |
| Advanced per client | About $25 to $51/mo per account | Klaviyo Marketing, MailerLite Power, Omnisend Pro, GetResponse Marketer and Creator (annual, in euros) | Clients needing SMS, deeper automation, funnels or webinars |
| Agency platform | $97 to $497/mo | HighLevel Starter, Unlimited and Agency Pro | Agencies running many clients under one account or reselling software |
Entry prices from vendor pricing pages, November 2026. Per-account prices rise with each client's list size.
Agency email marketing pricing adds up across clients. Ten clients at $20 a month is $200, before list growth, so a flat agency platform such as HighLevel Unlimited at $297 can be cheaper once you pass a handful of clients. Where clients own their accounts, bill the software to them directly and keep your fee for strategy and execution.
How we chose the best email marketing software
We started with the email marketing tools in the MakeSuccessOnline directory and added well-known agency platforms we have not reviewed yet, such as HighLevel. We scored each one on the criteria below with agency work in mind: setting up a new client, building a welcome and cart program, producing a monthly report and managing several accounts at once. We used our hands-on reviews, vendor documentation and current pricing, checked November 2026.
- Multi-client managementClient sub-accounts, separate data and one-login access across clients.25%
- Automation depthBranching flows, recipes and reusable templates for client programs.20%
- Client reportingRevenue attribution and campaign reports you can share with clients.15%
- Cost per clientFree plans, entry prices and how costs scale across many accounts.15%
- Ease of use for clientsHow easily client staff can work in the tool after handover.15%
- Channels and integrationsSMS, landing pages, store and CRM connections.10%
How to choose email marketing software
- Decide who owns the accountClient-owned accounts are simple to hand over and bill. Agency-owned or white-label accounts lock in recurring revenue but make you responsible for the software.
- Match the tool to your client mixEcommerce-heavy agencies should start with Klaviyo or Omnisend, B2B and SaaS with ActiveCampaign, and local business agencies with HighLevel.
- Price it across every clientAdd up each client's list size on the plan you need. Compare that total with a flat agency platform before you choose.
- Check seats and accessMake sure your team can get its own logins in every client account without sharing passwords.
- Test your standard client setupBuild your usual welcome flow, campaign template and report in a trial. Time how long it takes to repeat for a second client.
- Plan the handover or exitCheck how a client exports contacts and history if they leave, so offboarding does not damage the relationship.
Check during the free trial
- Can you manage several client accounts from one login?
- How many seats does each client account include?
- Can you copy flows and templates from one client to another?
- Does reporting show revenue or leads per campaign in a client-friendly way?
- How does cost change as each client's list grows?
Red flags
- Sharing one login across your whole team for client accounts
- Per-contact pricing you have not modeled across all clients
- No way for a client to export their contacts and history
- Key automation features locked behind the top plan
- Sending costs billed by usage that you have not priced into the retainer
Email marketing software for agencies FAQ
What is the best email marketing software for agencies?
HighLevel is the best email marketing software for agencies that want white-label resale and unlimited client sub-accounts. Campaign Monitor is best for agencies producing client newsletters with separate client accounts, and Klaviyo is best for agencies with ecommerce clients. The right choice depends on your client mix and whether clients or your agency own the accounts.
Is there free email marketing software for agencies?
Yes, but free plans suit only very small clients. Brevo's free plan allows 300 emails a day, while Klaviyo, Mailchimp, MailerLite and Omnisend offer free plans for about 250 contacts or profiles. None of the free plans include multi-client management, so most agencies use paid plans for real client work.
How much does email marketing software for agencies cost?
Per-client tools start at about $9 to $20 a month for a small list, such as Brevo at $9, Omnisend at $11.20 and Klaviyo at $20. Agency platforms cost more but cover many clients: HighLevel runs from $97 a month with limited client sub-accounts to $297 a month for unlimited sub-accounts. Per-client prices rise as each list grows.
Klaviyo vs Mailchimp for agencies: which is better?
Klaviyo is better for agencies with ecommerce clients because it syncs store data and attributes revenue to each flow and campaign. Mailchimp is better when clients already use it or need a simple editor they can run themselves. Mailchimp is cheaper to start at $8.89 a month; Klaviyo starts at $20.
Can I white-label email marketing software for clients?
Yes. HighLevel lets you rebrand the platform under your agency's name, and its Agency Pro plan at $497 a month adds SaaS mode to resell it to clients as your own software with automated billing. Campaign Monitor takes a different approach, letting agencies set their own prices and bill clients for sending through the platform.
Which email platforms support client sub-accounts?
HighLevel gives each client its own sub-account, with unlimited sub-accounts on the $297 Unlimited plan. Campaign Monitor lets you manage separate client accounts from one login, and Brevo includes multi-account management on its Enterprise plan. Other tools usually mean one account per client with seats for your team.
How do I choose email marketing software for my agency?
Start with your clients: ecommerce, B2B or local businesses each suit different tools. Then decide who owns and pays for each account, price the plan across every client's list size, and test your standard client setup in a free trial before you commit.
Should clients or the agency own the email account?
Client-owned accounts are usually safer for the relationship, because the client keeps its data and the software bill if you part ways. Agency-owned or white-label accounts suit agencies that bundle software into a retainer, but you carry the cost and must plan how a client exports their data when they leave.
About the reviewer
Editor & Reviewer, MakeSuccessOnline
William Harrison is an editor and reviewer at MakeSuccessOnline. He reviews each tools ranking before it goes live, checking plans, prices, free tiers and features against the tool's own documentation, and keeps rankings current as tools change.