Modelica Association

The Modelica Association is a non-profit, non-governmental organization with the aim of developing and promoting the Modelica modeling language for modelling, simulation and programming of physical and technical systems and processes.

The Modelica Association owns and administrates incorporeal rights related to Modelica, including but not limited to trademarks, the Modelica Language Specification, Modelica Standard Libraries, etc., which should be generally available for the promotion of industrial development and research.

Modelica Association Projects

A project to develop, standardize, and promote Modelica, a language to model and simulate multi-domain cyber physical systems in a convenient way.

Modelica Language

A project to develop, maintain, and promote the open source Modelica libraries and model components in many domains based on standardized interface definitions.

Modelica Libraries

A free standard that defines a container and interface to exchange dynamic simulation models using a combination of XML files, binaries, and C code.

A tool independent standard to define complete systems of one or more FMUs including its parameterization that can be transferred between simulation tools.

A platform and communication medium independent standard to integrate models and real-time systems into simulation environments.

A standard to seamlessly integrate physics design models of systems with their electronic controls development.

Modelica Association Bylaws

Individuals interested in joining the Modelica Association must have contributed to an MA project or to other parts of the Modelica Association. A contribution is typically demonstrated by participation in at least two projects or Assembly meetings during the previous twelve-month period (§3 of the bylaws). There is no such prerequisite for organizational membership applications. Individuals and organizations may apply to become a member with this form (PDF format) which should be completed, signed, scanned and mailed to the chairman. Currently, the fee for individuals is 20 Euro/year and for organizations since 2007 according to the number of employees: ≤ 5: 500 Euro/year, ≤ 50: 1000 Euro/year, ≤ 500: 2000 Euro/year, > 500: 5000 Euro/year.

Information on upcoming design meetings and more are published on the Modelica Association calendar. People interested to participate should contact the organizer for details.


The following licenses are used by the Modelica Association for material provided to the public.

Modelica Association Meetings

Board of the Modelica Association

Chairperson Dirk Zimmer DLR-SR, Germany
Vice-Chairperson Martin Sjölund Linköping University, Sweden
Secretary Michael Tiller JuliaHub, USA
Treasurer Jonas Eborn Modelon, Sweden

Board Members with specific duties

Marketing Hubertus Tummescheit Modelon, Sweden
Quality and Processes Francesco Casella Politecnico di Milano, Italy
Technology Martin Otter DLR-SR, Germany
Project leader “Modelica Language” Hans Olsson Dassault Systèmes, Sweden
Project leader “Modelica Libraries” Francesco Casella Politecnico di Milano, Italy
Deputy Project leader “Modelica Libraries” Anton Haumer OTH Regensburg, Germany
Project leader “FMI” Christian Bertsch Bosch, Germany
Deputy Project leader “FMI” Torsten Sommer Dassault Systèmes, Germany
Project leader “SSP” Jochen Köhler ZF Friedrichshafen, Germany
Deputy Project leader “SSP” Pierre Mai PMSF, Germany
Project leader “DCP” vacant
Deputy Project leader “DCP” Klaus Schuch AVL, Austria
Project leader “eFMI” Christoff Bürger Dassault Systèmes, Sweden
Deputy Project leader “eFMI” Hubertus Tummescheit Modelon, Sweden

Members of the Modelica Association with Specific Duties

Newsletter Editor Filip Ježek Prague, Czech Republic
Auditor 1 Karl Wernersson Dassault Systemes, Lund, Sweden
Auditor 2 Ben Landgren Performansea
Deputy Auditor Bernhard Bachmann University of Applied Science, Bielefeld, Germany

Modelica Association Backoffice

Modelica Association Backoffice is run by LTX Simulation GmbH in Munich, Germany. If you want to become a member or have other adminstrative questions, please contact us at:

Contributor License Agreements and other documents can be sent to:

MA Backoffice
c/o LTX Simulation GmbH
Wohlfartstr. 21b
80939 Munich

Organizational Members of the Modelica Association (listed alphabetically)

Individual Members of the Modelica Association (listed alphabetically)

Map of Modelica Association members

Have a look at the map of Modelica Association members (created using the map rendering service of GitHub).

History of the Modelica Association

There have been several attempts to define object-oriented languages for physical modeling. However, the ability to reuse and exchange models relies on a standardized format. It was thus important to bring this expertise together to unify concepts and notations. The Modelica design effort was initiated by Hilding Elmqvist, Dynasim AB, and started in September 1996 within an action of the ESPRIT project “Simulation in Europe Basic Research Working Group (SiE-WG)”. The Modelica language has been designed by the developers of the object-oriented modeling languages Allan, Dymola, NMF, ObjectMath, Omola, SIDOPS+, Smile and a number of modeling practitioners in different domains. After 8 three-day meetings, during a 1-year period, a first version of a Modelica language description was put on the web in September 1997. After 19 three-day meetings, during a 3-year period, version 1.3 of the language specification was finished in December 1999. This was the first version used in actual applications. In December 2000 an update of the language, version 1.4, has been published.