Mathematic.co.uk  
   Industrial mathematical consultancy, including detailed examples of numerical analysis.
   http://www.mathematic.co.uk/

Applied Research Associates NZ Ltd (ARANZ)  
   Developers of 3D digitizer (handheld laser scanner), point-cloud meshing and 3D data gridding software.
   http://aranz.com/

Beasy  
   Boundary Element software for various areas such as stress, durability analysis, heat transfer, fatigue, crack growth, acoustic design, corrosion, cathodic protection, mechanical design, contact and wear.
   http://www.beasy.com/

Elegant Mathematics, Inc.  
   Advanced algorithms for computational science. Robust Iterative Linear Solvers; Software tools for Parallelization of Algorithms and Computer Software; Approximation Method research. Research reports available in PS.
   http://www.elegant-math.com/

Numeritek  
   Home of Numerica, a library for solving hyperbolic partial differential equations.
   http://www.numeritek.com/