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Vensim Help

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Technical Support

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The Vensim support forum at is an open forum for discussing any questions relating to using Vensim and modeling issues. It is a good place for in-depth discussion and provides quick answers to most questions.

PLE and PLE Plus

If you are using PLE or PLE+, support is via our online support forum only. Please visit

Professional and DSS

For license holders with current maintenance Ventana Systems, Inc. provides free technical support for questions relating to the use of and problems with Vensim Professional and DSS.

NOTE Technical support is for problems with Vensim, not problems with model conceptualization or formulation.  Ventana Systems, Inc. runs training sessions that provide an introduction to modeling and simulation using Vensim.  Ventana can also provide consulting services in support of model building.  Please contact us if you would like further information.

Product Sales

Technical Support



Vensim Product Center

Ventana Systems, Inc.

60 Jacob Gates Road

Harvard, MA 01451


International Support

If you purchased Vensim though one of our international distributors you can contact them directly with any support questions you may have.  All are knowledgeable in both the use of Vensim and the practice of system dynamics.  



Support for, and new versions of, Vensim are provided on a subscription basis. Your initial licensing of Vensim includes one year of maintenance. At the end of that time you must renew your maintenance to continue to receive new releases and technical support. Maintenance gives you access to all new versions of Vensim for the configuration you have licensed. These can be downloaded from our web site

If you choose not to renew maintenance you may, unless you have a limited time version, continue to use the software, but you will not have access to new releases or technical support.


Training is available both for the use of Vensim and the art and practice of building system dynamics models.  Public workshops are offered periodically and workshops can also be delivered in-house when that is appropriate.


Ventana Systems, Inc. provides a full range of consulting services.  We can provide you with the expertise you need to address difficult business and public policy problems.