ILOG JRules - ILOG JRules is a business management system to allow developers and businesses to easily build and deploy a rule-based application that automates variable and fine-grained decisions.
CA Aion Business Rules Expert - CA Aion Business Rules Expert is a business decision and rule development tool that enables you to easily construct and maintain complex business processes in a visual environment.
Corticon - Progress Corticon Business Rules Engine helps organizations of all kinds make faster decisions by managing the rules that drive business processes.
CNSI RuleIT - CNSI RuleIT is a Business Rules Management System that is meant to help with the development and integration of heterogeneous systems with different business rules, even when these systems are developed by different vendors.
InRule - InRule is a cloud-ready business rule management platform that allows you to change business rules and decisions in the application without requiring JavaScript.
Higson.io - Higson is a BRMS, that was created with very large decisions and hyper-performance in mind. It stands out with the concept of the business domain which organizes the whole configuration in easy to manage way.