PowerHEX 

Advanced hex editor with many additional tools. Advanced User Interface.
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010 Editor 

010 Editor is a professional hex editor designed to edit any binary file, drive, or process on your machine. Use our unique Binary Templates technology to understand any binary format. Includes a whole range of powerful analysis and editing tools.
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Groovy Hex Editor 

Groovy Hex Editor is a tool for editing binary formats. I've paid particular attention to making it colorful and easy to use. Fully functional - no disabled features. Supports hex, decimal, ascii, multiple export features. Built in search and stats.
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FlexHEX 

Advanced hex editor for software professionals. Can edit huge files, logical disks, and physical drives. Quick data viewer, modification tracking, unlimited und/redo list, drag-and-drop, typed data fields and more. Supports advanced NTFS features.
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HexCmp 

HexCmp is a program, which combines together the features of a binary file comparison application and a convenient hex editor. The program will help you to compare files in binary format, at the same time serving as a hex editor that will edit files.
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Cygnus Hex Editor 

This is the fastest and easiest hex editor available anywhere! Tabbed MDI interface, multi-level undo & redo, extensive drag & drop support, blazing search/search & replace, file comparison, delete and insert characters like a word processor, more.
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