Marketing Automation Platforms Compared (2026)

Marketing automation platforms differ more than the category name suggests. Some are built around a CRM and expand into automation. Others are purpose-built for e-commerce, mobile apps, or developer-controlled messaging. The right choice depends heavily on the business model, the channel mix, and the technical resources available to operate the platform.

This comparison covers the six platforms that most frequently appear in B2B software evaluations as of mid-2026.

HubSpot Marketing Hub

HubSpot is an all-in-one platform that combines CRM, marketing automation, sales tooling, and customer service in one product. Marketing Hub, the marketing automation layer, sits on top of HubSpot’s native CRM and includes email campaigns, landing pages, forms, ad management, social publishing, SEO tools, and workflow automation.

The platform’s defining advantage is integration. Because CRM data, marketing data, and sales data all live in one system, HubSpot users don’t need to build and maintain integrations between separate tools. A lead’s journey from first website visit through email nurture to CRM pipeline stage is visible and actionable in one place.

HubSpot’s onboarding is faster than most enterprise alternatives, and it publishes pricing tiers that scale with contact count and feature needs. The Starter tier targets smaller teams with a lower monthly cost; Professional and Enterprise tiers unlock automation depth, custom reporting, and advanced segmentation.

Choose HubSpot when: you want marketing, CRM, and sales tools in one platform, you don’t have a dedicated marketing ops team to manage complex integrations, or you are in the SMB to mid-market range and want a system your team can operate without heavy technical support.

Marketo Engage (Adobe)

Marketo Engage is an enterprise demand generation platform that Adobe acquired and positioned within the Adobe Experience Cloud. It targets B2B marketing operations teams at large organizations and provides deep capabilities for lead management, account-based marketing, multi-touch attribution, and integration with enterprise tech stacks.

Marketo’s workflow engine is highly configurable. Its smart campaigns, triggers, and filters let marketing ops teams build complex lead scoring models and nurture sequences that connect to Salesforce and other enterprise CRMs. The platform has broad integration availability with the tools large B2B teams rely on.

The tradeoff is implementation complexity. Marketo takes longer to configure and requires marketing operations expertise to maintain effectively. It’s not a platform a small team can deploy quickly.

Contact Adobe for Marketo Engage pricing; it’s not published and is negotiated based on database size and required features.

Choose Marketo Engage when: you are a large B2B organization with a marketing ops function, your go-to-market is account-based, you need deep Salesforce integration and lead management at enterprise scale, and you have the budget and expertise to implement and maintain the platform.

Klaviyo

Klaviyo’s core product is email and SMS marketing automation built specifically for e-commerce. Its integration with Shopify, BigCommerce, WooCommerce, and other e-commerce platforms lets brands build segments based on purchase behavior: product categories purchased, order frequency, revenue tier, time since last order, and similar attributes that standard email platforms can’t access without custom data plumbing.

Klaviyo’s automation flows handle the canonical e-commerce sequences: welcome series, abandoned cart recovery, post-purchase follow-up, win-back campaigns, and VIP tier messaging. The revenue attribution reporting ties email and SMS activity to e-commerce revenue directly, which makes it straightforward to evaluate ROI.

Klaviyo publishes pricing based on contact count, with a free tier for small lists and scaling plans for growing brands. The SMS add-on is priced on message volume.

Choose Klaviyo when: you run a DTC or e-commerce brand, Shopify or another supported e-commerce platform is your source of truth for customer data, and you want email and SMS automation with purchase-based segmentation built in rather than configured manually.

ActiveCampaign

ActiveCampaign combines email marketing automation with a built-in CRM and sales pipeline. It targets SMB to mid-market businesses that want email campaign automation alongside basic CRM functionality without the cost and complexity of HubSpot’s full platform.

ActiveCampaign’s automation builder lets teams create multi-step sequences triggered by contact behavior: email opens, link clicks, website visits (through site tracking), form submissions, and tags applied through other automations. The CRM adds pipeline management and lead scoring that connects to the marketing automation layer.

Pricing is published and tiered by contact count and feature set, with plans ranging from Starter through Enterprise.

Choose ActiveCampaign when: you want solid email automation with a built-in CRM at a lower price point than HubSpot, you’re an SMB, and you don’t need the breadth of marketing channels or reporting depth that larger platforms provide.

Braze

Braze is a customer engagement platform built for companies delivering high-volume, real-time messaging across mobile apps, web, email, SMS, push notifications, and in-app messages. Its architecture is designed for consumer-facing businesses with large active user bases where personalized, behavior-triggered messages need to fire in near real-time.

Braze’s Canvas workflow tool lets teams build multi-step engagement journeys that branch based on user behavior. The platform’s strength is the combination of channel breadth and real-time processing: a user action in a mobile app can trigger a coordinated response across push, in-app message, and email within seconds.

Braze is used primarily by consumer apps, media companies, and large consumer brands. It’s significantly more complex and expensive than SMB-oriented tools.

Contact Braze for pricing.

Choose Braze when: you have a high-volume mobile or web application, you need real-time cross-channel messaging at scale, and you have an engineering team available to support the integration and event tracking that Braze requires.

Customer.io

Customer.io is a marketing automation platform aimed at product-led growth companies that want fine-grained control over messaging logic. It’s particularly popular with SaaS companies and developer-first teams that want code-based control over audience definitions, event schemas, and message triggers rather than a no-code interface.

Customer.io can send email, SMS, push notifications, and in-app messages. The platform connects to event streams from your product (via API or Segment) and lets you build segmentation and automation around product usage events with precision that broader marketing platforms typically can’t match without significant custom work.

Pricing is published and based on the number of profiles.

Choose Customer.io when: you are a product-led SaaS business that wants to send behavior-triggered messages based on product usage events, you have developer resources to manage the integration, and you want precise control over segmentation logic that goes beyond what standard marketing automation supports.

Side-by-Side Comparison

Platform	Best For	CRM Built-In	Key Channel	Pricing Model
HubSpot	SMB to mid-market, all-in-one	Yes	Email, multi-channel	Published, by tier
Marketo Engage	Enterprise B2B, demand gen	No (integrates with Salesforce)	Email, account-based	Contact vendor
Klaviyo	E-commerce, DTC	No	Email, SMS	Published, by contacts
ActiveCampaign	SMB, email + CRM	Yes (basic)	Email	Published, by contacts
Braze	Consumer apps, high-volume	No	Mobile push, email, SMS, in-app	Contact vendor
Customer.io	SaaS, product-led growth	No	Email, SMS, push	Published, by profiles

Methodology

Platform capabilities are sourced from published vendor documentation as of July 2026. Pricing for platforms that do not publish rates is noted as “contact vendor.” We don’t accept payment to rank platforms in this comparison.

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Is your platform missing from this comparison, or has something changed? Suggest an edit or get your product listed, or email our team at [email protected].

References

1. HubSpot. "Marketing Hub." HubSpot, 2026.
2. Adobe. "Marketo Engage." Adobe, 2026.
3. Klaviyo. "Email and SMS Marketing." Klaviyo, 2026.
4. ActiveCampaign. "Marketing Automation Platform." ActiveCampaign, 2026.
5. Braze. "Customer Engagement Platform." Braze, 2026.
6. Customer.io. "Marketing Automation for Developers." Customer.io, 2026.