Email Marketing Tools for Agencies

Platforms built to run dozens of client accounts from one login, with white-label reporting, sub-account billing, and permission controls that keep clients out of each other's data. An agency managing ten or fifty brands needs this structure far more than a single in-house marketer ever will.

1
HubSpot Marketing Hub
Integrated email, CRM, landing pages, and automation platform with Solutions Partner program for agencies managing multiple clients.
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2
Klaviyo
Email and SMS platform with deep e-commerce integrations, popular with agencies managing campaigns for online retailers.
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3
Zoho Campaigns
Multi-tenant email platform with dedicated Agency Edition for separate client subaccounts, permissions, and centralized multi-client management.
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4
MailerLite
MailerLite offers email marketing with drag-and-drop editing, automation, and unlimited contacts on entry plans for agencies.
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5
Mailchimp
Established email marketing platform with an Agency Partner Program providing revenue share and multi-client management tools.
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6
GoHighLevel
White-label all-in-one platform combining email, SMS, funnels, and CRM, designed for agencies managing multiple clients.
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7
Brevo
Email, SMS, and marketing automation platform, formerly Sendinblue, with agency programs that offer multi-client management and volume-based pricing.
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8
Salesloft
Enterprise sales engagement platform combining email, phone, and LinkedIn automation for Fortune 500 and mid-market teams.
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9
ConvertKit (Kit)
Newsletter platform built for creators and authors with subscription management, automation, and tools to grow engaged audiences.
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10
Omnisend
E-commerce email and SMS marketing platform integrating with Shopify, BigCommerce, and WooCommerce for unified brand messaging.
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11
Constant Contact
Email marketing and automation platform with a Solution Provider Program offering agencies wholesale pricing for multiple client accounts.
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12
Cordial
Enterprise cross-channel platform with AI-driven personalization across email, SMS, and direct mail.
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13
Sailthru
Predictive analytics engine for personalized email, SMS, and web experiences at enterprise scale.
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14
Postmark
Transactional and marketing email platform built for agencies with dedicated server organization and granular project permissions
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15
Courier
Developer-focused notification platform for coordinating email, SMS, and push messages across customer communication channels.
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16
ActiveCampaign
Email marketing, CRM, and automation platform with an agency program offering dedicated pricing for managing multiple client accounts.
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17
AWeber
Email marketing platform with automation workflows, list management, and integrations, trusted by agencies for more than two decades.
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18
Instantly
High-volume cold email platform with unlimited email accounts and warmup on all plans, designed for agency scaling.
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19
GetResponse
Email marketing and automation platform with partner tools and multi-account dashboards for agencies running campaigns across multiple client accounts.
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20
Elastic Email
White-label email marketing platform with unlimited subaccounts and branded client interfaces for resellers and agencies.
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21
Ontraport
All-in-one CRM combining email marketing, automation, ecommerce, and landing pages in a single system.
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22
Benchmark Email
Drag-and-drop editor and automation features help small businesses and growing agencies launch campaigns without technical skills.
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23
CleverReach
German email platform with white-label option and sub-account system built for agencies managing multiple brands.
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24
Sendlane
Email and SMS marketing automation platform built for e-commerce with advanced segmentation, behavior tracking, and 24/7 customer support.
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25
Smartlead
Cold email automation platform with inbox rotation and SmartDelivery technology, popular with agencies and sales teams.
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26
Mailjet
Email delivery and marketing platform designed for developers and marketers, featuring sub-account management for agencies handling multiple client sends.
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27
Gist
All-in-one platform combining email marketing, live chat, help desk, and CRM serving 15,000+ agencies and SaaS companies.
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28
iContact
Email marketing platform with intuitive drag-and-drop builder, automation sequences, and 40+ integrations for small to mid-sized businesses.
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29
Moosend
Affordable email marketing and automation with visual workflow builder and dedicated agency partner program for multi-client management.
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30
Campaigner
Advanced automation and engagement scoring tools help agencies track email performance through detailed click heatmaps and analytics.
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31
Agile CRM
All-in-one CRM combining email marketing automation, contact management, and multi-channel campaigns for business teams.
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32
Campaign Monitor
Email marketing platform with multi-client dashboards, letting agencies centrally manage campaigns across multiple brands from one account.
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33
Acumbamail
Spanish email and SMS platform processing 500M+ emails monthly with 850+ templates and CMS integrations.
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34
MailerSend
Email API designed for agencies with multi-tenant support, separate domains per client, and role-based access.
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35
Sarbacane
French email and SMS platform serving 10,000+ companies with workflow automation and GDPR compliance focus.
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36
Drip
Shopify-focused email automation platform that helps agencies build revenue-generating campaigns with visual workflows and attribution tracking.
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37
Envoke
Canadian email communications platform with sub-account feature for managing separate teams, contacts, and campaigns from a central admin console.
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38
MailUp
Italian-founded email marketing platform handling 25B+ emails annually with 800+ agencies and resellers offering white-label and multi-client capabilities.
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39
Mautic
Open source marketing automation platform deployable on-premises for agencies needing data sovereignty and multi-client management.
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40
SharpSpring
White-label marketing automation platform with a dedicated agency dashboard and per-client billing for managing multiple campaigns.
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41
Net Atlantic
Email marketing platform with 30+ years in business offering reseller and agency programs with volume discounts and dedicated IP support.
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42
Vendasta
White-label platform enabling agencies to resell digital marketing services including email campaigns to local business clients.
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43
BigMailer
White-label email marketing for franchises and agencies managing 100k+ subscribers across multiple brands with up to 100 team members.
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44
Contactlab
Italian CDP-based platform for email, SMS, and survey campaigns with advanced segmentation and analytics.
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45
Keap
CRM and marketing automation tool, formerly Infusionsoft, that agencies use to build email campaigns and nurturing sequences for small-business clients.
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46
Pepipost
High-deliverability email API and marketing platform offering transactional and marketing emails with AMP for interactive inbox experiences.
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47
Mailpro
Partner program email platform letting agencies manage all client accounts from one dashboard with flexible billing controls.
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48
NuevoMailer
Self-hosted email marketing supporting unlimited brands and mailing lists with a one-time license fee.
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49
Sendy
Self-hosted email newsletter platform offering unlimited brands and lists from a single installation, powered by Amazon SES with one-time $69 license fee.
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50
FlexMail
Belgian email marketing platform with dedicated partner program for agencies offering multi-account management and customizable client pricing.
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