Aspose.Obfuscator
A .Net assembly obfuscating tool. [Shareware]
Codework Dotfuscator
A Microsoft .NET and dotnet obfuscator that prevents decompilation and reverse engineering dotnet software.
Dotfuscator
Obfuscates to enhance source code security, shrinks to improve efficiency, and watermarks to track the origin of a pirated copy. [Commercial]
Eziriz NET Reactor
Protect .NET applications from reverse engineering by merging any .NET application with native machine code.
Mangler
A simple .NET assembly obfuscator application written in managed code and running right in browser. Includes an assembly explorer / IL disassembler.
Salamander
A decompiler for .NET applications and an obfuscator to hinder decompilation
Spices.Net (ex-ILO)
Protect .Net assemblies from reverse engineering, with size reduction and speed optimizations. By 9rays.net. [Commercial]
Thinstall
.NET encryptor, compressor, and pre-run framework checker. [Commercial]