Commercial & Freeware Expert System Shells

This is a mix of free, free for non-commercial use, and commercial inference engine tools and manufacturers. The pure Java systems are shown. Others are probably in LISP or C/C++. An older, more extensive, listing may be found at CMU AI Department

  • Aion Commercial: Mostly mainframe BRMS, now Computer Associates Clever Path
  • Acquire Software Commercial RBS
  • Attar Commercial: XpertRule Builder and Data Mining RBS
  • CLIPS Free: C Language Interface Production System
  • Corticon Commercial: Java RBS using mostly Excel-like tables for rules, non-Rete
  • drools Free: dynamic rules object-oriented system, Java RBS; mostly rules in XML
  • Euler: Free, Backward Chaining, Kind of weird but very academic, Java Rule System
  • EXSYS Expert System Software & Services Commercial:
  • Fair-Isaac Blaze Advisor Commercial: High-end .NET and Java BRMS
  • Gensym Corporation Home Page Commercial
  • The Haley Enterprise - CIA Commercial: High-end C/C++ and Java (Paul Haley)
  • ILOG Rules and JRules Commercial: High-end C/C++, .NET and Java BRMS
  • InfoSapient:  Free, Open Source, Java RBS
  • Jess: (Sandia Labs) Commercial, Free for Non Commercial Use.  Java, Clips-sub-set RBS (Author, Dr. Ernest Friedman-Hill)
  • Jena2: Free, Java, Semantic Web Framework, RBS from HP Labs
  • JLog: Free, Open Source, ProLog in Java System
  • JEOPS Free: Java RBS (Author: Dr. Carlos Figueira Filho)
  • JEOPS on SourceForge Free: Java RBS(Author: Carlos Figueira Filho)
  • JLisa: Free, Open Source, CLIPS-Like, Java RBS
  • JTP: Java Theorem Prover, Free, Open Source, Java RBS
  • Mandarex: Free, Backward Chaining, Open Source, Java RBS
  • MindBox: (Formerly Inference Corporation) Commercial, High-End, Non-Java BRMS
  • OFBiz: Open for Business, Free, Open Source Java RBS
  • OpenRules:  Free and Commercial Versions, XML-based, non-Rete, RBS
  • PegaRules: PegaSystems, Commercial BRMS
  • Pellet: Free, OWL and OWL DL RBS, use with Jena or OWL API, from MindSwap
  • PST - Production System Technologies Commercial, Free for non-commercial use: Java RBS (Author: Dr. Charles Forgy)
    • OPSJ (Java RBS using Rete 2)
    • CLIPS/R2 (OPS in C/C++ Using Rete 2)
    • OPS/R2 (Rete 2 for OPS)
  • Resolution: Resolution Systems, Commercial RBS
  • ROWL: Free RBS in OWL for Jess
  • RuleCore: Rule Core Systems, Sweden, Commercial RBS, possibly non-Rete
  • Sandia Labs - Jess Commercial, Free for Government and Academic Use, Small fee for non-commercial use includes source code: Java, CLIPS Sub-set,  RBS(Author: Dr. Ernest Friedman-Hill)
  • SHOP: Free, Hierarchial Task Network from University of Maryland
  • Sweet Rules: Free, Semantic Web Rules from MIT
  • TyRuBa: Free, Open Source, Java RBS
  • Teknowledge Corporation Commercial

we specialize in Intelligent Business Rule Management Systems (iBRMS) - the same thing that used to be called rulebased systems by the AI companies.