Update as of April 2026:
- There’s no official Klaviyo native HubSpot app today. You connect them using APIs or tools like Outfunnel, Zapier, n8n, IntegrateIQ, Unific, or a systems integrator.
- With the right connector, you can get near-“native” behavior: bi-directional sync of contacts/properties, key CRM events into Klaviyo for segmentation/flows, and Klaviyo engagement/ecommerce and consent back into HubSpot for sales/service visibility.
- What you can’t do is click a single toggle in Klaviyo to turn on an official HubSpot integration the way you can for Shopify/Square/etc. It’s always some flavor of third-party or custom project right now.
Original answer:
Hi @TeddyPardo!
At this time, we don’t have a native bi-directional sync, only a migration path. It may be possible to create your own custom integration using our APIs and the following developer guide, if you’re interested:
Please note that custom integrations are technically beyond the scope of Support/Community, so if you’re looking for further development help, you’re always welcome to reach out to one of our Official Klaviyo Partners.
Best,
Brian