This article provides instructions on integrating Sales Intelligence (SI) with HubSpot CRM.
Prerequisites:
- Sales or Primary administration access within 6sense to set up integration. 
- HubSpot administration access. 
The following API limits apply to the HubSpot CRM integration according to the HubSpot API Usage Guidelines:

Configure HubSpot CRM Integration
- Navigate to Settings and select the Integrations tile.  
- Click on HubSpot when presented with the list of supported CRM integrations.  
- Click Connect and then click Sign in with HubSpot credentials.   
- Click Next. 
- Enter Rest API limits and click Save & Next.  
- Flip the Data sync flag to the ON state. Click Finish to complete the setup.   
- Once the OAuth authentication is complete with the organization, the CRM cards will start showing up on the company and contact pages. HubSpot has a unique way to integrate with third-party apps. On the right hand side of the company and the contact object pages, the cards are added. Card action buttons open up a modal to access the respective apps and functionalities. - Card name: 6sense - App name: 6sense Sales Intelligence  
- Log in to HubSpot and click on Companies inside the Contacts menu. 