Marketplace Partners provide apps and integrations available on the Atlassian Marketplace that extend the power of Atlassian products.
October 27, 2022 edited
Hi Celina,
I've seen both and something in between. There are integrators for Atlassian products with most stand-alone CRM's available in the marketplace.
There are also plenty of companies who work separately, in that case a handover is necessary if at some point you need information to go from your CRM to Jira (or back). Good way-of-working agreements are key to make that work.