Lumina Decision Systems
Lumina Decision Systems creator of Analytica, visual modelling software that takes you beyond the spreadsheet. Analytica uses influence diagrams and Monte Carlo simulation to tackle challenging decisions under uncertainty .
http://www.lumina.com/

Piraeus University - Decision Support Systems Lab
The Decision Support Systems Laboratory was founded in the year 2001 at the Department of Informatics, University of Piraeus. Its activities are focused on the field of decision support systems, knowledge management, data analysis and data mining. The DSS Lab supports relevant courses and research, both at undergraduate and postgraduate levels Το Εργαστήριο Συστημάτων Υποστήριξης Αποφάσεων ιδρύθηκε στο Τμήμα Πληροφορικής του Πανεπιστήμιου Πειραιώς το έτος 2001 . Οι δραστηριότητες του εστιάζουν στα πεδία των συστημάτων υποστήριξης αποφάσεων, διαχείρισης γνώσης, ανάλυσης δεδομένων και εξόρυξης γνώσης. Το Εργαστήριο Σ.Υ.Α. υποστηρίζει τα σχετικά μαθήματα και την έρευνα σε προπτυχιακό και μεταπτυχιακό επίπεδο.
http://dsslab.cs.unipi.gr/

Decision Systems Limited
Decision Systems Specialists in Retail Planning improving multi-channel merchandise planning, plus buyer support systems for product lifecycle management with their Buyerplan software.
http://www.buyerplan.co.uk/

Decision Systems Lab (DSL)
Research group at the University of Pittsburgh with links to books and software on probabilistic, decision-theoretic, and econometric graphical models
http://www.sis.pitt.edu/~dsl/

Decision Support Systems
"Decision Support Systems welcomes contributions on the concepts and operational basis for DSSs, Techniques for implementing and evaluating DSSs, DSS experiences, and related studies. In treating D S topics, manuscripts may delve into, draw-on, or expand such diverse areas as artificial intelligence, cognitive science, computer supported cooperative work, data base management, decision theory, economics, linguistics, management science, mathematical modeling, operations management systems, ad others. The common thread of articles published in the journal will be their relevance to theoretical, technical DSS issues."
http://www.elsevier.com/homepage/sae/orms/dss/

Progress
Site aimed at the promotion of Wise decision making Describes in detail procedure, PROGRESS, which helps you make wise decisions
http://www.decision-making.co.uk

Decision Modeling Add-Ins for Excel
Decision ToolPak consists of three add-ins for Excel: TreePlan for decision trees, SensIt for sensitivity analysis (tornado and spider charts), and RiskSim for Monte Carlo simulation.
http://www.decisiontoolpak.com

1000Minds - decision making and prioritisation
1000Minds uses patented technology to create advanced decision support software for use in prioritization, allocation and general decision-making applications.
http://www.1000minds.com

Managing Decision- Priority- Mental Error
Helping professional decision makers avoid mental error in decision selection and fundamental prioritizing, with quotes by noted psychologists & authors and links to their books. On-line research.
http://www.mdpme.com/

Superior Information Systems Inc
Super Info Manufacturing Management Software, Inc, providing Pick Programming, Universe Programming, and Infolease systems.
http://www.superinfoinc.com