AODocs - AODocs is the document management solution recommended for G Suite. Secure your documents, structure your content, & automate your processes
Teedy - Teedy is a lightweight document management system packed with all the features you can expect from big expensive solutions but still easy to use.
Docomotion - Docomotion offers tools for designing and generating all types of transactional and operational business documents.
Paperless - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless, MacJournal and many more. Based in MN.
infoRouter - infoRouter is a EDMS that includes Workflow, Document routing, Electronic Forms, Scanning, Storage, Archiving, Indexing & Records Management
Paperless-ngx - paperless-ngx has 6 repositories available. Follow their code on GitHub.