MathC - MathC provides statistical consulting using Mathematica, visualization of mathematical concepts in the area of teaching Mathematics, and Mathematica-applied college-level mathematics.Analytica - Analytica provides consulting and training to the Mathematica community.
HostSRV - A web hosting company dedicated to providing MathScript capabilities to websites.
Scientific Arts - Consulting with Mathematica: Scientific Arts is a consulting and creative services company which provides targeted solutions for a broad range of scientific enterprises.
MathTensor, Inc. - Developers and distributors of MathTensor, a Mathematica-based package for performing tensor analysis by computer. Formerly MathSolutions, Inc.
Salford - Salford Software offers Mathematica training and consultancy, The Salford Color Math package, and a short list of Mathematica tips.
