Pacific Simulation is a consulting and software development firm of chemical engineers, software engineers and mathematicians dedicated to offering innovative, cost-effective solutions to challenges in the pulp and paper industry. With projects in over fifty mills on two continents, we offer clients a diversity of experience. PacSim's products and engineering expertise have been applied to many successful projects.

The solutions developed by PacSim take on many forms, and often involve the application, adaptation or creation of computer software. The software tools which have been developed by PacSim are the result of solving problems in the pulp and paper industry, not a goal in themselves. Some solutions are in the form of software for the end-user, and some solutions take the form of services to clients. Pacific Simulation's three primary independent software packages are WinGEMS, FactNet and IMAS.