Not trying to hide our competition but honestly, we came to build this because I didn't find any.
The leader 15 years ago was SugarCRM but sadly they ended up getting bought by a PE fund and closing the source. There is a project called SuiteCRM[1] that continued with an open source fork but in my opinion they lack the "modern" touch that we were looking for.
Besides that, other options I've seen are Yeti [2] or Odoo [3].
Odoo is very successful but it's different because it's an ERP so CRM is only a small part of what they do. They tend do do a lot of things so can't do all of them very well.
Some notes based on what I'm seeing are SuiteCRM and YetiForceCRM are not fully being developed in the open. The community around odoo is quite large and has close to 10,000 historical contributors. Twenty is new and picking up steam.
The leader 15 years ago was SugarCRM but sadly they ended up getting bought by a PE fund and closing the source. There is a project called SuiteCRM[1] that continued with an open source fork but in my opinion they lack the "modern" touch that we were looking for.
Besides that, other options I've seen are Yeti [2] or Odoo [3]. Odoo is very successful but it's different because it's an ERP so CRM is only a small part of what they do. They tend do do a lot of things so can't do all of them very well.
[1] https://github.com/salesagility/SuiteCRM [2] https://github.com/YetiForceCompany/YetiForceCRM [3] https://github.com/odoo/odoo