| Autolev | An advanced symbolic manipulator for engineering and mathematical analysis. |
| FEMLAB | A scripted finite element model builder and numerical solver. PDE solutions, Inc. |
| FlexPDE | A general-purpose Software System for obtaining numerical solutions to the coupled sets of partiar differential equations found in physics, chemistry, etc. |
| GAMS | Generalized Algebraic Modeling System. GAMS is designed for modeling linear, nonlinear, and mixed integer optimization problems. It is available on PCs, workstations, mainframes, and supercomputers. |
| IDL | The Interactive Data Language is software for visualization, data analysis and cross-platform application development. They may have gone out of business, as the link does not seem to work. |
| ILOG CPLEX | JRules for high-performance, flexible optimizations. |
| JMP | Statistical discovery software |
| MacKichan | Scientific Workplace and other products for producing mathematical documents. |
| Maple | Mathematical computation software |
| Mathematica | Integrated technical computing system: Interactive calculation, visualization tools, and a complete programming environment |
| MathSoft | MathCad computing environment. |
| MathType | Create mathematical notation for word processing, LaTex, etc. |
| MathWorks | MatLab and Simulink computing and modelling environments. |
| NAG | Numerical libraries for Fortran 77, Fortan 90 and C |
| NCAR | Mathematical and plotting software. Free. |
| Numerical Recipes | Software from the famous book |
| Octave | GNU Octave is a math package for numerical computation. It is not intented as a clone of MatLab, but it shares much of the notation. |
| Origin | An analysis package that offers a suite of data analysis and custom utility development tools. |
| Rogue Wave | IMSL and PV-WAVE. |
| Scilab | The SciLab package of software for statistical analysis. |
| StatSoft | Statistica |
| Tecplot | General purpose scientific plotting. Also Tecplot Edge. |
| UTS | TK Solver and other tools. |
| UN-SCAN-IT | Converts scanned graphs to (x,y) data. Silk Scientific. |