RunaWFE - RunaWFE Free is a free Open Source BPMS (business process management system), which serves to optimize and automate business processes (for Windows, Linux, Mac OS).
DottedSign - The Best E-Signature Solution for Your Business
Camunda - The Universal Process Orchestrator
DocuSign - Try DocuSign's interactive signing demo now! Send yourself an electronic document to digitally sign using our e-signature service.
Joget.org - Open Source Workflow Software, Business Process Management and Low-Code Application Platform.
LibreSign - O LibreSign (assinatura eletrônica) permite que documentos sejam assinados de forma segura e com validade jurídica.