ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
Phatch - Phatch = Photo & Batch!
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Batch Image Processor 2010 - Batch-process & create web gallery of images
Ralpha Image Resizer - High-speed image batch conversion tool