LUSAS develops, markets and supports a range of engineering analysis software products all based upon the LUSAS finite element analysis system.

LUSAS finite element analysis software is available in LT, Standard or Plus versions dependent upon the software product. Each product is designed for use by engineers in particular industries.

- LT versions are suitable for linear static analysis of structural frames and grillages.
- Standard versions of software are suitable for everyday linear static and linear dynamic analysis.
- Plus versions allow for more advanced analyses to be undertaken and include an extended advanced high-performance element library.

The analysis capabilities of the standard and plus versions of all LUSAS software products can be extended further by using Nonlinear, Dynamic, Thermal/Field, Fast Solvers and other.