PyroSim
Analyze fire control and smoke dissipation in various structures for fire protection and safety or investigation.
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Pathfinder
Understand pedestrian egress and congestion hazards for fire protection and safety or urban planning.
Petrasim
Model nonisothermal multiphase flow and transport in fractured and porous media for environmental engineering.
Documentation
Manuals and Reference Documents for all products
Tutorials
Getting Started, Applications and Feature Demos
Release Notes
Detailed changes each product release
FAQs
Frequently Asked Questions (FAQs) and Answers
Calendar
See upcoming events schedule.
FEMTC
Fire and Evacuation Modeling Technical Conference
Training
Both Online and In-person training options.
About
Learn more about Thunderhead Engineering
News
Announcements for our products and services
Jobs
Become a part of the Thunderhead team
Partners
International reseller and distributor network
Release Notes for versions of Pathfinder 2023
Release Notes for versions of Pathfinder 2022
Release Notes for versions of Pathfinder 2021
Release Notes for versions of Pathfinder 2020
Release Notes for versions of Pathfinder 2019
Release Notes for versions of Pathfinder 2018
Release Notes for versions of Pathfinder 2017
Release Notes for versions of Pathfinder 2016
Release Notes for versions of Pathfinder 2015
Release Notes for versions of Pathfinder 2014
Release Notes for versions of Pathfinder 2013
Release Notes for versions of Pathfinder 2012
Release Notes for versions of Pathfinder 2011
Release Notes for versions of Pathfinder 2009
