HubSpot Diamond Solutions Partner
HubSpot & Mailchimp Integration: Sync Lists, Not Spreadsheets
Stop manually exporting CSVs. Our integration syncs Mailchimp audiences and HubSpot contact data in real-time, powering smarter segmentation and faster sales follow-up.
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Empower Your Mailchimp Campaigns with HubSpot CRM Data
Stop emailing your contacts in a vacuum. This integration pushes critical HubSpot data like deal stages, lead scores, and custom contact properties directly into Mailchimp. This allows your team to build hyper-targeted segments and trigger automations based on real-time sales activity.
Trigger Smarter Automations: Automatically move contacts to a nurture campaign in Mailchimp the moment their HubSpot deal stage is marked "Closed Lost."
Personalize at Scale: Segment Mailchimp audiences using HubSpot lead scores or contact owner data to send highly relevant, personalized content.
Maintain List Hygiene: Instantly sync unsubscribes and hard bounces from HubSpot back to Mailchimp (and vice-versa) to protect your sender reputation.
Stop emailing your contacts in a vacuum. This integration pushes critical HubSpot data like deal stages, lead scores, and custom contact properties directly into Mailchimp. This allows your team to build hyper-targeted segments and trigger automations based on real-time sales activity.
Integrate IQ has consistently shown they can be trusted with even the most complex projects. I know our customers are in great hands and that the job will always get done right.
Turn Mailchimp Engagement into Revenue Insights in HubSpot
Stop guessing your email ROI. By syncing deep Mailchimp engagement data (like opens, clicks, and campaign names) back to the HubSpot contact timeline, you give your sales team full visibility and unlock true revenue attribution reporting.
Build Complete Contact Timelines: See every Mailchimp email open and click directly on the HubSpot contact's activity feed, giving sales crucial context.
Score Leads Accurately: Use Mailchimp campaign activity to build sophisticated lead scoring models in HubSpot, prioritizing the most engaged leads for your sales team.
Automate Sales Follow-up: Use HubSpot workflows to create tasks for sales reps when a lead clicks a link in a key Mailchimp campaign.
Prove Marketing ROI: Attribute closed-won deals in HubSpot back to the specific Mailchimp campaigns that influenced them.
Stop guessing your email ROI. By syncing deep Mailchimp engagement data (like opens, clicks, and campaign names) back to the HubSpot contact timeline, you give your sales team full visibility and unlock true revenue attribution reporting.
A Flexible Sync Architecture Built for Your Business
Our custom integrations are engineered for flexibility and scale, handling any business logic and data transformation you require.
Built for Your Business Process
Standard connectors force you into a one-size-fits-all box, often limited to basic fields and one-way data flow. We build your integration around your business logic, mapping custom objects and handling complex data transformations that out-of-the-box tools simply can't.
- Bi-Directional & Uni-Directional Sync: You control the data flow. Push HubSpot contacts to Mailchimp, pull Mailchimp activity into HubSpot, or keep both platforms perfectly in sync with a true two-way connection that native tools lack.
- Real-time & Scheduled Syncs: Trigger updates instantly when a record changes (e.g., a new Mailchimp subscriber) to eliminate the data delays common in native connectors. Or, run high-volume batch syncs nightly to align systems.
- Custom Sync Logic & Triggers: We go beyond basic field mapping. We can transform data (e.g., 'Lifecycle Stage' in HubSpot becomes a specific 'Tag' in Mailchimp) based on your unique rules.
- High-Volume Data Handling: Our architecture is built to scale, reliably processing hundreds of thousands of records without hitting API limits or slowing your systems down.
Comprehensive Object & Field Mapping
We sync all the data that matters, not just the basics. Our solution maps the full breadth of your GTM data, including custom properties and objects, to ensure no insights are lost between platforms.
HubSpot
Mailchimp
- Contacts
- Companies
- Lists (Active/Static)
- Custom Contact Properties
- Deal Properties (Stage, Amount)
- Email Activity (from Contact)
- Contact Opt-Out
- Subscribers / Contacts
- (Mapped to Contact Tags/Groups)
- Audiences / Lists
- Custom Merge Fields
- (Used to trigger Tags/Segments)
- Campaign Activity (Opens, Clicks)
- Unsubscribes / Cleaned
- Contacts Subscribers / Contacts
- Companies (Mapped to Contact Tags/Groups)
- Lists (Active/Static) Audiences / Lists
- Custom Contact Properties Custom Merge Fields
- Deal Properties (Stage, Amount) (Used to trigger Tags/Segments)
- Email Activity (from Contact) Campaign Activity (Opens, Clicks)
- Contact Opt-Out Unsubscribes / Cleaned
Transparent, Project-Based Pricing
No surprises. Clear scope, clear acceptance tests. We believe in straightforward pricing so you know exactly what to expect before we begin.
A failed integration is more than a technical problem: it's a drain on time, budget, and morale. We are the specialists that leading companies like MetLife trust to handle their most mission-critical data flows. We don't rely on fragile connectors or simplistic platforms because we know they can't handle enterprise scale. Our approach is built on robust, custom development and a deep understanding of both HubSpot and the systems you need to connect it to. Partnering with us isn't just another attempt; it's an investment in certainty.
Why Integrate IQ?
Our four pillars for delivering successful outcomes on complex projects.
Mastery of Complexity
We thrive on custom API integrations, multi-system migrations, and “messy data” that makes others pause. Full support for standard and custom objects across your stack is table stakes for us.
Pragmatic Innovation
Real problems, shipped solutions. Our proprietary Smart Ramp apps were developed to fill gaps in HubSpot capabilities and solve real-world customer problems. The same practical mindset powers our HubSpot AI Accelerator: We focus on data readiness and shipped outcomes, not shiny features.
De-Risking the Process
Complex projects demand clarity. Our Smart Process runs on an 8-12 week cadence with stage gates, transparent deliverables, and clear pricing. That’s how we maintain a 98.5% customer retention rate.
The Expert You Call
We’re a developer-led team of integration engineers, solution architects, and technical PMs. Clients describe us simply: 'the folks you call when something seems impossible.'
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Frequently Asked Questions
Our integration is fully bi-directional and customizable. The standard integration is primarily one-way (HubSpot to Mailchimp), only syncs basic fields (name, email), and has sync delays. We sync all custom fields, in real-time.
Yes. We map any HubSpot property (standard or custom) to any Mailchimp merge field or tag. This allows you to use rich CRM data for segmentation, which native tools cannot do.
We perform a one-time historical backfill, migrating all past Mailchimp campaign activity (opens, clicks) onto the corresponding HubSpot contact records. Native tools do not sync retroactively.
Absolutely. We can sync HubSpot active lists directly to Mailchimp audiences or groups. This ensures your segments are always up-to-date without manual CSV imports.
We sync opt-outs bi-directionally and in real-time. An unsubscribe in Mailchimp will update the contact's opt-out status in HubSpot (and vice-versa) to ensure full compliance.
See Your Custom HubSpot-Mailchimp Sync in Action
Stop fighting with rigid, one-way connectors. Schedule a free, no-obligation consultation, and we'll map out your exact data flow between HubSpot and Mailchimp.
Book Your HubSpot Discovery Call!