Act-On vs HubSpot vs Pardot vs Marketo: The Honest B2B Marketing Automation Comparison for 2026

Choosing a B2B marketing automation platform is a decision that is difficult to reverse. Migrating from HubSpot to Marketo, or from Pardot to Act-On, costs months of implementation time, risks data integrity, and requires retraining the marketing team. Getting it right the first time matters.

The comparison that follows is built from real deployment experience across all four platforms, not from vendor-provided feature matrices or G2 review aggregates. Each platform has a specific buyer profile where it wins and a specific profile where it loses. Matching your company to the right profile is the only decision framework that consistently produces good outcomes.

The Four Platforms at a Glance

Before the detailed comparison, a one-paragraph honest summary of each platform.

Act-On is a mid-market B2B marketing automation platform that competes on price flexibility, usability for small marketing teams, and a contact-based pricing model that does not penalise database growth the way HubSpot does. It is less well-known than its competitors but consistently rated highly by the marketing operations teams who actually use it day to day.

HubSpot is the most widely deployed B2B marketing automation platform in the SMB and mid-market segment. Its strength is the unified database: CRM, marketing, sales, and service data all in one system with no integration overhead. Its weakness is cost at scale and workflow logic that is less flexible than dedicated automation platforms.

Pardot, now officially called Salesforce Marketing Cloud Account Engagement, is the B2B automation layer built for Salesforce CRM users. If your CRM is Salesforce, it is the natural default. If it is not, the case for Pardot weakens considerably.

Marketo Engage, owned by Adobe, is the enterprise standard for large-scale B2B marketing automation. It is the most powerful platform in this comparison and the most complex to implement and maintain. It belongs in organisations with a dedicated marketing operations function.

Pricing: What You Actually Pay

Marketing automation platform pricing is deliberately complex. Published prices are starting points, not total costs. Here is what companies actually pay.

Act-On

Act-On prices by active contacts, starting at approximately £700 per month for 2,500 active contacts on the Professional plan. The Enterprise plan adds advanced features including advanced data studio, enhanced analytics, and dedicated support. The contact-based model means you only pay for contacts you are actively marketing to, which benefits companies with large databases that they segment aggressively.

Total year-one cost for a mid-market B2B company with 5,000 active contacts: approximately £10,000 to £14,000 including implementation support.

HubSpot Marketing Hub

HubSpot's pricing tiers matter significantly. The Starter tier at around £40 per month is not a serious marketing automation tool. The Professional tier, where meaningful automation becomes possible, starts at approximately £800 per month for 2,000 contacts and increases with contact count. The Enterprise tier starts at approximately £3,200 per month and is required for features like custom behavioural events, multi-touch attribution, and advanced partitioning for large teams.

The hidden cost at HubSpot is contact pricing. Every contact in the database counts toward your tier limit, including unsubscribed and non-marketing contacts. Companies with large CRM databases often find themselves paying for contacts they are not marketing to.

Total year-one cost for a mid-market B2B company: £12,000 to £20,000 at Professional tier, £45,000 to £60,000 at Enterprise tier, including onboarding.

Pardot (Salesforce Marketing Cloud Account Engagement)

Pardot pricing starts at approximately £1,000 per month for the Growth edition (up to 10,000 contacts) and reaches £3,000 per month for the Advanced edition. The Plus edition at approximately £1,750 per month is where most serious B2B automation becomes possible.

The critical factor: Pardot requires a Salesforce CRM licence to function properly. If you are adding Salesforce CRM costs to Pardot costs, the total investment is substantially higher than the Pardot licence alone. For a team of 10 sales users, Salesforce Professional CRM adds approximately £1,500 per month.

Total year-one cost for a mid-market B2B company already on Salesforce: £15,000 to £25,000. For a company moving to both Salesforce and Pardot simultaneously: £30,000 to £50,000.

Marketo Engage

Marketo does not publish standard pricing. Licences are negotiated based on database size, functionality required, and contract terms. The realistic entry point for a meaningful Marketo implementation is approximately £2,500 per month, with mid-market deployments typically running £4,000 to £8,000 per month.

Professional services for Marketo implementation are a significant additional cost. A full implementation by a Marketo-certified partner typically costs £20,000 to £50,000 depending on complexity.

Total year-one cost for a mid-market B2B company: £55,000 to £120,000 including platform, implementation, and ongoing support.

Feature Comparison: What Actually Matters for B2B

The feature matrices published by vendors and review sites compare hundreds of capabilities, most of which the average marketing team never uses. These are the capabilities that actually determine B2B marketing automation outcomes.

Lead Scoring

All four platforms offer lead scoring. The quality difference is in flexibility and data sources.

Act-On provides behavioural scoring (email engagement, page visits, form submissions) and demographic scoring (job title, industry, company size). The scoring model is straightforward to configure and does not require technical expertise.

HubSpot's lead scoring on Professional and Enterprise tiers supports the same behavioural and demographic inputs with the advantage that CRM data (deal stage, sales activity, company properties) feeds the score automatically without integration.

Pardot's Einstein Lead Scoring, available on the Advanced tier, uses machine learning to identify the behavioural patterns that predict conversion based on your historical closed-won data. For companies with sufficient conversion history, this produces more accurate scores than manually configured models.

Marketo's lead scoring supports the most complex multi-dimensional models: separate scores for fit, engagement, and intent that combine into an overall score, score decay over time, and the ability to score at the account level rather than just the individual contact level.

Email Automation and Sequences

Act-On's email automation is reliable and easy to configure for linear sequences. Complex branching logic with multiple conditions and wait steps requires more setup than on HubSpot but is achievable without developer involvement.

HubSpot's workflow builder is the most intuitive of the four for non-technical marketers. The visual drag-and-drop interface makes complex branching logic accessible, and the integration with CRM data means workflows can branch on sales activity, deal stage, and company properties without custom integration.

Pardot's Engagement Studio provides a visual flow builder similar to HubSpot's. The native Salesforce integration means workflows can trigger based on Salesforce object changes with no delay or sync issue. The limitation is that non-email actions (updating Salesforce fields, creating tasks, assigning to queues) are better handled through Salesforce flows than through Pardot itself.

Marketo's engagement programmes are the most powerful but require the most expertise to configure correctly. The ability to nest programmes, manage communication limits centrally, and coordinate complex multi-touch sequences across long sales cycles makes Marketo genuinely superior for enterprise B2B with 12 to 24 month sales cycles.

CRM Integration

This is where the platform choice most clearly depends on your existing technology stack.

Act-On integrates natively with Salesforce, Microsoft Dynamics, and SugarCRM. Third-party integrations for HubSpot CRM and other platforms are available but less seamless. If your CRM is not Salesforce or Dynamics, verify the specific integration depth before committing.

HubSpot's CRM integration is native because HubSpot is both the CRM and the marketing platform. For companies using HubSpot CRM, this is a genuine advantage: no sync delays, no field mapping complexity, no data discrepancies between sales and marketing records.

Pardot's Salesforce integration is the tightest in the market because they are the same company's products. Real-time bi-directional sync, native Salesforce object support, and the ability to trigger Pardot actions from Salesforce workflows make this the right choice for Salesforce-native organisations.

Marketo integrates deeply with Salesforce and Microsoft Dynamics. The Salesforce integration is mature and supports complex field mappings, custom object sync, and bi-directional data flow. For Salesforce users who need enterprise-grade marketing automation beyond what Pardot offers, Marketo is the upgrade path.

Reporting and Attribution

Act-On's reporting covers the standard marketing metrics: email performance, landing page conversion, form submissions, and programme performance. Multi-touch attribution is available but less sophisticated than HubSpot or Marketo.

HubSpot's reporting at Enterprise tier is strong, particularly for companies where marketing and sales both use HubSpot. Multi-touch revenue attribution, custom report builder, and the ability to report on contacts, companies, deals, and marketing data in the same interface give a complete view of marketing's contribution to pipeline.

Pardot's B2B Marketing Analytics module provides account-level reporting and Salesforce-integrated pipeline attribution. For companies that care about account-level engagement (multiple contacts at the same company, account progression through the pipeline), this is superior to contact-level reporting.

Marketo's Revenue Cycle Analytics is the most comprehensive of the four, with waterfall stage reporting, velocity analytics, and programme-to-pipeline attribution. It requires significant configuration investment but produces genuinely useful data for optimising a complex B2B marketing function.

The Decision Framework: Which Platform for Which Company

The vendor-agnostic decision framework based on real deployment outcomes.

Choose Act-On if:

Your marketing team is small (one to three people), you do not have a dedicated marketing operations resource, your CRM is Salesforce or Dynamics, your contact database is growing and you want pricing that does not penalise database size, and you need a platform that works well out of the box without months of configuration.

Act-On wins for: B2B professional services firms, mid-market industrial and manufacturing companies, and organisations that need serious B2B automation capability without the implementation complexity of Marketo or the ecosystem lock-in of HubSpot.

Choose HubSpot if:

Your CRM is already HubSpot or you are selecting a CRM and marketing automation platform simultaneously, your team values ease of use over maximum flexibility, you want a single vendor for CRM, marketing, sales, and service, and your contact database is manageable (under 50,000 contacts without significant growth expected).

HubSpot wins for: SaaS companies, professional services firms, and B2B companies in the growth phase (£2M to £20M revenue) where a unified platform provides more value than best-of-breed specialist tools.

Choose Pardot if:

Your CRM is Salesforce and will remain Salesforce, your sales team is already deeply embedded in the Salesforce workflow, you need real-time bi-directional sync between marketing and sales data, and your marketing team has or can develop Salesforce proficiency.

Pardot wins for: enterprises with established Salesforce infrastructure, financial services and healthcare companies already in the Salesforce ecosystem, and B2B companies where the sales team's CRM workflow is non-negotiable.

Choose Marketo if:

You have a dedicated marketing operations function (at least one full-time person), your contact database exceeds 100,000 records, your sales cycle exceeds 12 months and requires complex multi-touch nurture sequences, you need account-based marketing at enterprise scale, and your budget supports both the platform cost and the implementation investment.

Marketo wins for: enterprise B2B technology companies, large financial services organisations, and pharmaceutical or healthcare companies with complex compliance requirements and long decision cycles.

Where n8n Fits in the Picture

For companies at any stage of this comparison, n8n workflow automation solves the integration and orchestration problems that none of these platforms fully address on their own.

Every platform in this comparison has limitations on what it can connect to natively. Act-On does not integrate with every CRM. HubSpot's workflow logic cannot call external APIs without workarounds. Pardot cannot trigger actions in non-Salesforce systems cleanly. Marketo's native integrations are powerful but expensive to extend.

n8n sits alongside whichever platform you choose and handles the connections that the platform cannot: enrichment APIs, custom data transformations, connections to internal databases, and orchestration logic that requires real-time external data.

The combination of a marketing automation platform for contact management and email delivery, plus n8n for orchestration and integration, covers 95% of B2B marketing automation requirements at a lower total cost and with more flexibility than a single enterprise platform attempting to do everything.

Migration Considerations

If you are currently on one of these platforms and evaluating a switch, the migration cost is frequently underestimated.

Data migration involves not just contacts and companies but also engagement history, list memberships, suppression lists, and GDPR consent records. Each of these requires careful mapping to the new platform's data model.

Asset migration covers email templates, landing pages, forms, and reporting dashboards. Most do not migrate directly and require rebuilding in the new platform's format.

Workflow recreation is the most time-intensive element. Every active nurture sequence, scoring rule, and automation workflow must be recreated and tested before the old platform is switched off. For a mature marketing automation instance with 50 to 100 active workflows, this is a 2 to 4 month project.

The migration cost calculation: if your current platform costs £1,000 per month and the new platform costs £800 per month, saving £200 per month, a 3-month migration project that costs £15,000 in staff time takes over six years to recoup in platform savings. The case for migration must be based on capability gain, not cost reduction, to be financially justified.

Frequently Asked Questions

Which platform has the best email deliverability?

All four platforms use reputable email infrastructure and achieve similar deliverability when configured correctly with SPF, DKIM, and DMARC records. Deliverability differences between platforms are minimal compared to the impact of list hygiene, engagement rates, and sending practices. Clean lists, consistent engagement, and proper technical setup matter more than platform choice.

Can a small B2B company with one marketing person use Marketo?

Technically yes, practically no. Marketo's power comes from sophisticated configuration that requires dedicated expertise. A one-person marketing team using Marketo is unlikely to configure it correctly, unlikely to maintain it effectively, and will pay for enterprise capabilities they cannot utilise. Act-On or HubSpot Professional serve a one-person marketing team better.

Is HubSpot still worth it if we do not use HubSpot CRM?

HubSpot Marketing Hub can connect to Salesforce and other CRMs via native integration, but the unified data advantage disappears. If your CRM is Salesforce, Pardot provides a tighter integration. If your CRM is something else, Act-On or a standalone email platform with n8n for orchestration often produces better results at lower cost than HubSpot without the CRM.

How long does a full implementation take for each platform?

Act-On: 4 to 8 weeks for a complete basic setup, 2 to 4 months for a fully configured advanced instance. HubSpot: 4 to 8 weeks with HubSpot CRM, 6 to 12 weeks with a third-party CRM integration. Pardot: 6 to 12 weeks for Salesforce-native organisations, 3 to 6 months if Salesforce itself is being implemented simultaneously. Marketo: 3 to 6 months minimum, 6 to 12 months for a comprehensive enterprise implementation.

What happens to our data if we need to leave a platform?

All four platforms allow data export in standard formats (CSV for contacts, JSON or XML for more complex objects). Email engagement history and programme membership data can typically be exported. The critical data to verify before signing any contract: that you can export complete contact records including all custom fields, all email engagement history, all consent records, and all list memberships, in a format that can be imported into a future platform without data loss.

To get an unbiased recommendation for your specific team size, CRM, and pipeline complexity, book a free automation audit. We have implemented all four platforms across dozens of B2B companies and can give you a direct recommendation based on your actual situation rather than vendor positioning.