Google Tag Manager (GTM) and many others. Attribution modeling is key for any program.
Arcalea uses Google Tag Manager primarily and is open to other solutions like Adobe. In practical experience, for sites not based on high SKU e-commerce, Google Tag Manager is not only effective, but superior, for tracking and ease of configuration/maintenance.
Our team has experience working with Salesforce, HubSpot, SugarCRM, SharpSpring, and many others, including accounting and ERP platforms like SAP and Microsoft Dynamics.