FuReA  
   Software tools for regression analysis of fuzzy data. Simulate non-linear dependencies, detect outliers and observe results graphically.
   http://www.fuzzy.ru/

Hirosoft  
   Information about Epicure software for risk regression using non-linear models and complex rate(person-year) computations.
   http://www.hirosoft.com/

Multiple Regression Components for Delphi  
   Programs for analytical applications. Includes technical support.
   http://www.aasdt.com/statistics/mlr.html

Nonlinear Statistical Regression Analysis  
   General linear and nonlinear statistical regression analysis.
   http://www.nlreg.com/

Oakdale Engineering  
   DataFit curve fitting (nonlinear regression) and data plotting software.
   http://www.curvefitting.com/

Spatial Statistics  
   Used for estimating large spatial autoregressions via maximum likelihood. Contains MATLAB and Fortran 90 software.
   http://www.spatial-statistics.com/

Least Squares Method Program  
   A nonlinear least squares fitting program that handles input errors or a covariance matrix on each axis. The curve fitting can use many curves simultaneously and stick them together with their parameters or points, in many dimensions.
   http://www.prz.rzeszow.pl/~janand/

LeoStatistic  
   Data visualization and statistical analysis. Distribution histograms, curve and surface fitting, multivariate regression, near neighbors estimation etc.
   http://www.leokrut.com/leostatistic.html

Sagata Ltd.  
   Develops and sells business statistics software, has a professional regression package with Microsoft Excel interface.
   http://www.sagata.com/

2D Curve Fitting  
   Online curve fitting and data plotting software based on Pade (rational) approximants.
   http://www.soft4structures.com