STAN is used by companies and organizations all over the world.
Between October 2006 and July 2012, approximately 7,500 users registered to download previous versions of STAN (1.0 and 2.0). Since August 2012 (the release date of this website), the community has grown by additional 33,800 users (updated in January 2026). So, in total, we now have approx. 41,300 users worldwide.

A lot of universities use STAN for teaching purposes:
- Aalto University
- BOKU Wien
- DTU - Technical University of Denmark
- ENSIL - Ecole Nationale Supérieure d'Ingénieurs de Limoges
- EPFL - École Polytechnique Fédérale de Lausanne
- ETH - Eidgenössische Technische Hochschule Zürich
- FH Johanneum - Graz
- FH Pinkafeld
- FH Wels
- FHNW - Fachhochschule Nordwestschweiz
- HEIG-VD - School of Engineering and Business Vaud
- HFR - Forsthochschule Rottenburg
- HSR - Hochschule für Technik Rapperswil
- HTWG Konstanz
- IIT - Illinois Institute of Technology
- Imperial College London
- Justus Liebig Universität Gießen
- Karl Franzens Universität Graz
- KIT - Karlsruhe Institut für Technologie
- KTH - Royal Institute of Technology Stockholm
- KTU - Kaunas University of Technology
- LiU - Linköping University
- Montanuniversität Leoben
- NCSU - North Carolina State University
- NTNU - Norwegian University of Science and Technology
- NTU - Nanyang Technological University, Singapore
- NTU - National Taiwan University
- RWTH Aachen
- TU Berlin
- TU Darmstadt
- TU Dresden
- TU Hamburg - Harburg
- TU München
- TU Wien
- UACG - Sofia
- UNESCO-IHE Institute for Water Education
- Universität Stuttgart
- Universität Zürich
- University of Malaya
- UNSW - The University of New South Wales
- Wageningen University
- Yale School of Forestry and Environmental Studies
- ZHAW- Zürcher Hochschule für angewandte Wissenschaften