Managing email marketing for multiple clients can quickly become overwhelming without the right platform.
After reviewing email marketing tools specifically for their agency capabilities, we’ve identified the top solutions that actually understand multi-client workflows, white-label needs, and scalable pricing structures.
Disclaimer: The features, pricing, and details mentioned for each product are current as of October 2025 and may have changed since then.
Ready? Let’s dive in.
TL;DR: Email marketing software for agencies at a glance
| Tool | Best For | Key Advantage | Starting Price | Review Rating |
|---|---|---|---|---|
| Campaign Monitor | Agencies managing multiple clients | Centralized agency dashboard, white-label reporting, and template locking | $12/mo | 4.2/5 (2000+ reviews) |
| Emma by Marigold | Enterprise agencies needing brand governance | Tiered accounts, brand manager, and approval workflows | $99/mo | 4.0/5 (540+ reviews) |
| ActiveCampaign | Data-driven agencies focused on automation | AI automation builder + built-in CRM | $15/mo | 4.5/5 (14.4K+ reviews) |
| SendGrid | Developer-focused agencies | Robust API, 99.99% uptime SLA, and advanced deliverability | $19.95/mo | 4.0/5 (300+ reviews) |
| GetResponse | Course creator and educator agencies | Built-in webinars and AI course generator | $15.58/mo | 4.3/5 (800+ reviews) |
| AWeber | Small-business agencies | AI writing assistant and fixed-price unlimited plan | $12.50/mo | 4.2/5 (630+ reviews) |
| Moosend | Cost-conscious agencies | Enterprise-grade features at low cost; AI tools included | $9/mo | 4.7/5 (700+ reviews) |
| Drip | E-commerce & subscription agencies | Real-time behavioral segmentation and onsite messaging | $39/mo | 4.4/5 (450+ reviews) |
| MailerLite | Agencies wanting simplicity and value | Easy UI with built-in website builder and automation | $10/mo (free plan available) | 4.6/5 (1.08K+ reviews) |
| HubSpot | Full-service marketing agencies | Complete CRM + Marketing Suite with partner program | $15/mo (free plan available) | 4.5/5 (14K+ reviews) |
| Mailjet | Developer or transactional-heavy agencies | Dual marketing/transactional platform with real-time collaboration | $17/mo (free plan available) | 4.0/5 (150+ reviews) |
If you want a broader comparison of agency-ready tools, check out our full guide on the best email marketing software for agencies.
1) Campaign Monitor – The #1 Email Marketing Platform for Agencies Right Now
Rating: 4.2/5 (2,000+ reviews)
Campaign Monitor stands out as the premier choice for agencies with its purpose-built agency features and decade-plus track record of serving marketing professionals.
The platform offers an intuitive drag-and-drop builder combined with enterprise-grade client management tools that make scaling agency operations seamless.
Campaign Monitor vs. Standard Email Platforms: Key Differences
| Feature Category | Campaign Monitor | Typical Email Platform |
|---|---|---|
| Client management | Manage all clients from one agency dashboard; create multiple client sub-accounts. | Single account requires switching/logins between clients (generalized contrast). |
| White-label options | Private/white-label branding for agencies. | Limited or no white-label capabilities. |
| User permissions | Granular permissions for teams and clients. | Basic roles with limited separation. |
| Pricing structure | Special agency rates/discounts available. | Per-contact pricing that can scale expensively. |
| Template governance | Template/section locking to prevent unauthorized changes. | Open editing can risk brand inconsistency. |
| Automation complexity | Automated journeys with triggers, delays, conditions; visual branching. | Basic autoresponder sequences. |
| Integration ecosystem | Integrations directory with 250+ apps/services (Salesforce, GA, WordPress, etc.). | Fewer, single-business-focused integrations. |
Switchback Email Marketing lifted booking revenue 55% for clients with Campaign Monitor automations.
Switchback Email Marketing is a specialized agency for the vacation-rental industry. They craft branded campaigns, automate guest/owner comms, and boost direct bookings.
booking revenue increase (via automations)
open-rate increase from inactive audience in the first month
With Campaign Monitor, the team is an extension of our team… The software has allowed us to craft specific solutions and services for the vacation rental industry that are unique not only to Switchback but also to our clients’ email marketing strategies
Create a flow
Add your email list
Start sending
Key Features:
- Agency Dashboard: Manage all client accounts from one centralized interface without switching logins
- White-Label Reporting: Generate fully branded reports and dashboards that reinforce your agency’s expertise
- Advanced Automation: Create sophisticated customer journeys with behavioral triggers and conditional logic
- Template Governance: Lock brand elements to prevent unauthorized changes while allowing content flexibility
- Dedicated Support: Access to agency specialists with guaranteed response times and migration assistance
Pricing starts at $12/mo
(Price may change, depending on number of contacts, with 10% annual discount)
| Plan | Price | Key features |
|---|---|---|
| Lite | $12/mo | 5× subscriber emails/month; AI Writer + automated emails; custom-coded templates & unlimited signup forms |
| Essentials | $29/mo | Unlimited sends; priority support + inbox preview; unlimited automations |
| Premier | $159/mo | Phone/Premier support; advanced engagement segments + send-time optimization; email section locking |
| Enterprise | Custom pricing | Dedicated account manager; multi-brand/multi-team management; proactive deliverability + GDPR/SOC2 security |
What else can you do with Campaign Monitor?
Beyond email marketing, Campaign Monitor offers SMS marketing for integrated campaigns, transactional email capabilities for automated notifications, and a comprehensive API for custom integrations.
The platform also provides professional services including campaign strategy, design reviews, and team training to help agencies maximize their client results.
Want to deliver fully branded client experiences? Explore our top white-label email marketing platforms.
2) Emma – Enterprise-Grade Multi-Account Management
Rating: 4/5 (540+ reviews)
Emma excels in providing enterprise-level account structure and brand governance tools, making it ideal for larger agencies managing complex client hierarchies.
The platform’s tiered account system allows unlimited subaccounts with granular user permissions and approval workflows.
Key Features:
- Tiered account structure: Emma HQ provides a top-level account with subaccounts for distributed teams.
- Brand governance controls: Lock template styles and share brand assets to keep campaigns on-brand.
- Approval workflows: Review sends from an approvals dashboard, with options to reschedule or cancel.
- Advanced analytics: Compare results across mailings and view Emma’s Mailing Score benchmark.
- Multi-channel orchestration: Integrated SMS available alongside email within Emma.
Considerations before going with Emma:
- Emma’s base plan excludes automation and landing pages, requiring the Essentials tier for full functionality.
- SMS costs extra and requires manual bundle management, which can complicate billing for agencies with varying client needs.
Emma’s pricing starts at $99/month
Emma’s tiered account structure allows corporate teams to maintain brand consistency while empowering local teams.
| Plan | Price | Contacts | Key Features |
|---|---|---|---|
| Lite | $99/month | 10,000 | Drag-and-drop editor, built-in integrations, email & phone support, 5 users, 2 role types |
| Essentials | $159/month | 10,000 | Everything in Lite, plus landing pages, unlimited automation, SMS add-on |
| Teams | $249/month | 10,000 | Everything in Essentials, plus tiered accounts, custom permissions, brand manager, trend reporting, SMS included |
| Corporate | Custom pricing | Custom | Everything in Teams, plus 10+ subaccounts, unlimited users, priority support, audience sharing |
If you want to benchmark client performance more effectively, review the core email marketing KPIs every agency should monitor
3) ActiveCampaign – Advanced Automation for Data-Driven Agencies
Rating: 4.5/5 (14.4K+ reviews)
ActiveCampaign combines powerful marketing automation with CRM functionality, making it ideal for agencies focused on complex customer journeys and lead nurturing.
The platform’s AI-powered automation builder and 900+ pre-built recipes help agencies quickly deploy sophisticated campaigns.
Key Features:
- AI-powered automation builder: Uses AI to help create and optimize automation workflows (not guaranteed to generate full flows instantly).
- Integrated sales CRM: Track deals, stages, and contact activity within the same platform.
- Multi-channel orchestration: Run email, SMS, and WhatsApp campaigns with unified reporting.
- Advanced segmentation: Premium tiers offer granular targeting plus predictive features (e.g., predictive send/content).
- Automation recipe library: 900+ prebuilt automation “recipes” for common agency use cases.
Considerations before going with ActiveCampaign:
- Full feature access requires Pro or Enterprise tiers, making it expensive for smaller agencies.
- The interface can be overwhelming for basic users, and enhanced CRM features require separate add-ons.
ActiveCampaign pricing starts at $15/month, requires signup for agency features
| Plan | Price | Key Features |
|---|---|---|
| Starter | $15/month (500 contacts) | Email marketing, basic automation, 1 user |
| Plus | $49/month (500 contacts) | CRM, landing pages, unlimited automation |
| Pro | $79/month (500 contacts) | Advanced reporting, attribution tracking, 3 users |
| Enterprise | $145/month (500 contacts) | Custom reporting, dedicated support, SSO |
To keep complex workflows organized across clients, read our email marketing checklist to ensure every campaign meets best-practice standards.
4) SendGrid – Developer-First Platform for Technical Agencies
Rating: 4/5 (300+ reviews)
SendGrid excels as a developer-focused email platform with industry-leading deliverability and robust API capabilities.
Technical agencies appreciate its programmatic sending capabilities and comprehensive testing tools.
Key Features:
- Developer-first architecture: RESTful API for email sending, with SDKs/library support for major languages like Python and Node.js.
- Reliability & SLA: Infrastructure offering an advertised 99.99% uptime SLA.
- Testing features: Email rendering previews, spam-testing and link-validation capabilities (dependent on plan).
- Template system: Dynamic templates with API integration and “drag-and-drop” editors; versioning/real-time editing may depend on plan.
- Enterprise controls: Options for dedicated IPs, subuser management for multi-tenant or agency workflows.
Considerations before going with SendGrid:
- The platform isn’t beginner-friendly for non-technical marketers.
- Key features like automation and dedicated IPs require higher-tier plans, and the interface prioritizes functionality over visual campaign building.
SendGrid pricing starts at $19.95/mo; requires sign up for agency features
| Plan | Pricing | Key Features |
|---|---|---|
| Free Trial | $0/60 days | 100 emails/day, no card, upgrade anytime |
| Essentials | From $19.95/mo | 50k–100k emails/mo, Email API + campaigns |
| Pro | From $89.95/mo | 100k–2.5M emails/mo, scalable features, volume discounts |
| Premier | Custom | Tailored high-volume plan via sales |
Read next: We Compared 15+ SendGrid Alternatives – Here’s #1
5) GetResponse – All-in-One Platform for Course Creator Agencies
Rating: 4.3/5 (800+ reviews)
GetResponse combines email marketing with webinar hosting and online course creation, making it ideal for agencies serving coaches, educators, and content creators.
The platform’s AI-powered tools streamline content creation across multiple channels.
Key Features:
- Integrated webinar platform: Host live and on-demand webinars with landing pages and automated follow-ups.
- AI course creator: Generate course outlines/modules and quizzes from prompts, then build lessons in the course tool.
- Conversion funnel builder: Use preconfigured funnels for opt-ins, webinars, sales, and lead magnets.
- Advanced automation: Visual workflows with conditions, actions, and filters for behavioral logic.
- E-commerce integration: Product recommendations, abandoned-cart recovery, and revenue attribution.
Considerations before going with GetResponse:
- SMS marketing costs extra and advanced features like AI recommendations require the MAX tier.
- The learning curve can be steep for complex funnel setups.
GetResponse offers partner options for agencies
| Program | Model | Commission | Essentials |
|---|---|---|---|
| Affiliate (REFER) | Refer clients | Up to 60% recurring | Cookie/promo-code tracking; real-time stats; free assets; free to join; monthly payouts. |
| MAX Partnership (RESELL) | Resell to clients | Up to 50% lifetime | Dedicated onboarding & sales specialist; exclusive training; resell sub-accounts (custom lists/pricing); 25% on MAX referrals; program fee applies. |
Read more: GetResponse Alternatives That Focus on Email Marketing
6) AWeber – AI-Powered Platform for Small Business Agencies
Rating: 4.2/5 (630+ reviews)
AWeber leverages AI throughout its platform to help agencies create content, optimize campaigns, and automate customer journeys.
The platform’s fixed-price unlimited plan removes growth penalties for high-volume senders.
Key Features:
- AI writing assistant: Generates email copy and subject line suggestions.
- Team hub management: A feature that allows agencies to manage multiple client accounts with customizable roles and permissions from a single login.
- Integrated e-commerce tools: Sell digital products and paid newsletters with automated delivery (via Stripe).
- Automation recipes: Prebuilt workflows (e.g., welcome series); abandoned cart via supported e-commerce integrations.
- Analytics & testing: Engagement and sales reports with A/B testing.
- Pricing model: Subscriber-based tiers (not a fixed-price unlimited plan).
Considerations before going with AWeber:
- Send limits are based on subscriber multipliers which can confuse high-volume senders.
- The platform lacks SMS beyond web notifications and has no free forever tier.
AWeber pricing starts at $15/month; requires booking a demo for agency features
| Plan | Price | Features |
|---|---|---|
| Lite | $15/month | Unlimited subscribers, 10x email sends, 3 landing pages, 3 automations |
| Plus | $30/month | 12x email sends, unlimited landing pages, unlimited automations, priority support |
| Done For You | $30/month + $79 setup fee | Full setup by experts, branded templates, welcome series, weekly content |
Read next: AWeber Alternatives That Offer Better Value
7) Moosend – Cost-Effective Full-Feature Platform
Rating: 4.7/5 (700+ reviews)
Moosend delivers enterprise-grade features at competitive prices with AI-powered content tools and comprehensive automation.
The platform offers significant discounts for annual billing, making it attractive for cost-conscious agencies.
Key Features:
- AI-enhanced content creation: Generate email copy and subject lines (also usable in landing pages/forms).
- Visual workflow builder: Drag-and-drop automations with triggers, conditions, and actions.
- Comprehensive feature set: Email marketing, landing pages, forms, SMTP and transactional email.
- Enterprise security/options: SSO and SAML available on certain plans; dedicated IPs offered as an add-on.
- Flexible pricing structure: Annual-billing discounts and custom enterprise plans available.
Considerations before going with Moosend:
- Contact-based pricing increases costs with large lists unless customized.
- Advanced features like transactional email and SSO require higher plans or add-ons.
Moosend offers a partner program for agencies with exclusive benefits
| Feature | Details |
|---|---|
| Commission | 30% recurring commission for each client you introduce to Moosend. Option to adjust to 20% and offer 10% client discount. |
Read next: Moosend Alternatives (Ranked)
On drives 20% of sales with Campaign Monitor email.
On is a Swiss performance running shoes & apparel brand using automation + personalization to engage runners worldwide.
of e-commerce sales attributed to email
more engagement on personalized campaigns
Targeted emails allow us to be with our customers when and where they need us. And they’re resulting in more opens, clicks, and purchases.
Create a flow
Add your email list
Start sending
8) Drip – Behavioral Marketing for Data-Driven Agencies
Rating: 4.4/5 (450+ reviews)
Drip specializes in behavioral email marketing with real-time segmentation and onsite messaging integration.
Agencies focused on ecommerce and subscription businesses appreciate its sophisticated automation capabilities.
Key Features:
- Real-time behavioral segmentation: Dynamic segments based on purchase history, site behavior, and engagement.
- Integrated onsite messaging: Popups, slide-ins, and sticky bars that can trigger email journeys.
- Visual workflow builder: Drag-and-drop automations with split paths and goals.
- E-commerce data sync: Native integrations with major carts (e.g., Shopify, WooCommerce, BigCommerce) to pull order, product, and customer data.
Considerations before going with Drip
- Single pricing tier offers no lower-cost options for small lists.
- Onsite features may overlap with existing popup tools, and there’s no built-in SMS channel.
Drip offers a partner program with tiered commissions for agencies
| Tier | Commission | After 2 Years | Key Benefits |
|---|---|---|---|
| Silver | 15% | 5% | Demo account; Access to Drip support; Partner badge; Dedicated Partner Manager |
| Gold | 20% | 10% | Demo account; Access to Drip support; Partner badge; Featured link on Drip’s website; Dedicated Partner Manager |
| Platinum | 25% | 15% | Demo account; Access to Drip support; Partner badge; Featured link on website & roadmap insights; Dedicated Partner Manager |
Read next: We Compared 19 Drip Alternatives – Here’s #1
9) MailerLite – User-Friendly Platform with Fair Pricing
Rating: 4.6/5 (1.08K+ reviews)
MailerLite combines simplicity with powerful features, offering generous free tiers and transparent pricing.
Agencies appreciate its intuitive interface and comprehensive website building capabilities.
Key Features:
- Unified digital platform: Email marketing, automation, landing pages, and websites in one interface.
- AI writing assistant: Generate email copy/subject lines (available on Advanced plan).
- Pricing structure: Free plan available; paid plans are subscriber-based and include monthly send limits (not unlimited).
- Customer support: 24/7 support on paid plans; live chat available on higher tiers (no guaranteed 5-minute SLA).
- Website builder: Responsive sites with blogs, SEO controls, and password protection.
Considerations before going with MailerLite:
- Both paid plans limit to 500 subscribers before pricing increases.
- Advanced features like AI assistant and smart sending require the Advanced plan, and there’s no native SMS channel.
MailerLite starts offers a free plan with 12,000 monthly emails, then pricing starts at $10/mo
| Plan | Price | Features |
|---|---|---|
| Free | $0 | 500 subscribers, 12,000 monthly emails, automation builder, landing pages, 24/7 support for 14 days |
| Growing Business | $10/month | Unlimited emails, 3 users, sell digital products, dynamic emails, multivariate testing |
| Advanced | $20/month | Unlimited users, smart sending, custom HTML editor, AI writing assistant, enhanced automations |
| Enterprise | Custom pricing | Dedicated success manager, dedicated IP, deliverability consultation, account audit |
Read next: MailerLite Alternatives That Scale Better
10) HubSpot – Complete Marketing Automation Suite
Rating: 4.5/5 (14K+ reviews)
HubSpot offers a comprehensive marketing automation platform that extends far beyond email to include CRM, sales tools, and content management. Its agency partner program and multi-account management make it suitable for full-service marketing agencies.
Key Features:
- Agency partner program: Dedicated enablement for agencies, including training, credentials, and partner support.
- Marketing Hub features: Email marketing, social media tools, SEO/lead capture, landing pages, and analytics in one platform.
- CRM connection: Natively ties marketing activities to HubSpot’s Smart CRM and sales pipelines.
- Smart content personalization: Dynamic content based on list membership, lifecycle stage, device, location, and more.
- User permissions & teams: Granular, role-based access controls within each account.
Considerations before going with HubSpot:
- Professional features start at $800/month, making it expensive for smaller agencies.
- The platform’s complexity requires significant training, and advanced features can be overwhelming for simple email campaigns.
HubSpot pricing starts at $15/mo
| Package | Starting Price | 2–3 Key Features |
|---|---|---|
| Solutions Provider | $15/month | Revenue share; Enablement resources; Solutions Directory listing (provider badge) |
| Solutions Partner | $400/month | Revenue share; Waive client onboarding fees (up to $6,000 each); Dedicated account manager |
- Billed monthly; requires Starter level of HubSpot software.
- Billed monthly; requires Professional or Enterprise level; onboarding fee required; if using Sales or Service Hub to qualify, minimum 4 seats for one of those subscriptions.
11) Mailjet – Developer-Friendly Transactional Platform
Rating: 4/5 (150+ reviews)
Mailjet specializes in both marketing and transactional email with strong API capabilities and collaborative features.
Technical agencies appreciate its developer tools and reliable infrastructure.
Key Features:
- Dual email platform: Create and send marketing and transactional emails in the same platform.
- Collaborative design tools: Real-time, Google-Docs-style editing and comments in the Email Editor.
- Advanced segmentation: Target by attributes and behaviors with built-in segmentation.
- Robust API & webhooks: RESTful Email API/SMTP with comprehensive docs and real-time event webhooks.
- Deliverability & IP options: Dedicated IPs and reputation tools; EU data residency across multiple EU data centers.
Considerations before going with Mailjet:
- The platform requires technical knowledge for advanced features.
- Marketing automation capabilities are limited compared to specialized platforms, and the interface prioritizes functionality over visual design.
Mailjet offers a free plan with 6000/mo, pricing starts at $17/mo
| Plan | Price | Key Features |
|---|---|---|
| Free | $0/mo | 6k emails/mo (200/day), 1.5k contacts, API/SMTP, editor, basic stats |
| Essential | From $17/mo | 15k emails/mo, no daily cap, unlimited contacts, segmentation, 1 subaccount, no logo |
| Premium | From $27/mo | 15k emails/mo, automations, dynamic content, A/B, landing pages, advanced stats, multi-user, up to 20 subaccounts |
| Custom | Upon request | Premium + deliverability services, dedicated manager, onboarding, IP strategy, reports, SLA |
Improving your agency workflow? Our updated email marketing guide shows how to structure services, pricing, and processes for scalable growth.
The Verdict: Which Email Marketing Platform Should Agencies Choose? (Our Top 3 Picks)
- Campaign Monitor — Best overall for agencies: agency dashboard, white-label reporting, granular permissions, and template locking make multi-client work seamless.
- Emma by Marigold — Best for enterprise control: tiered accounts, brand governance, and approvals suit complex orgs.
- ActiveCampaign — Best for advanced automation: powerful workflows plus CRM for data-driven teams.
The choice ultimately depends on your team’s size, client mix, and budget. For most agencies that want scalable multi-client management without extra logins, Campaign Monitor delivers the strongest balance of control, branding, and ease of use.
Ready to streamline your agency’s email ops? Don’t juggle patchwork tools.
Request a Campaign Monitor demo or try it for free today to see why it’s our #1 pick for professional marketing agencies.