Laserfiche - Laserfiche offers powerful document management software solutions that are easy to implement and easy to use.
Papermerge DMS - Open source document management system designed for archiving and retrieving your digital documents. Instead of having piles of paper documents all over your desk, office or drawers - you can quickly scan and upload them to Papermerge DMS.
M-Files - M-Files is an enterprise information management system that helps users with organizing and managing 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.
IBM FileNet - Enterprise Content Management platform for large businesses
Paperless-NG - A supercharged version of paperless: scan, index and archive all your physical documents - jonaswinkler/paperless-ng